Philodendron Plowmanii— Ultimate Grow & Care Guide

Philodendron plowmanii
Slow growing Philodendron Plowmanii with big glossy heart shaped leaves.

Who does not love to behold an exotic plant in their collection? Well, the beauty we are discussing here is one such kind!

The rare Philodendron Plowmanii’s massive bicolored heart-shaped leaves in the dark, lime green and pale yellow, make a stunning statement in your home.

Generally, Philodendron Plowmanii thrives in bright indirect sunlight and porous, moist soil of 4.5 to 6 pH along every 2 to 3 months of fertilization. They enjoy temperatures ranging from 55 to 88°F at 60% or more humidity and prefer to stay free in pot requiring every year repotting.

waxy leaf of Philodendron plowmanii
Optimum care and attention to Philodendron Plowmanii will reward you with larger, glossier leaves.

The Philodendron Plowmanii is very popular among gardeners and will add a touch of tropical flair to any home.

So, you are in the right place if you want to learn about the care guide and the dos and don’ts of Philodendron Plowmanii.

Let us get started to know more about this splendid plant.

Overview of Philodendron Plowmanii

Philodendron Plowmanii is a flowering plant that belongs to the Araceae family. It grows enormously in its natural tropical rainforests of South America.

It is a pretty rare plant to get your hands on, so count yourself lucky if you have one.

Do you know Philodendron Plowmanii is named in honor of botanist Timothe Charles Plowman?

Here is brief care information on the Philodendron Plowmanii.

IndicatorIdentity
Scientific NamePhilodendron plowmanii
Common NamePhilodendron plowmanii
Native AreaEcuador and Peru
FamilyAraceae
Growth ZoneZones 9-11
Plant TypePerennial
Trailing Succulent
Growth SizeApprox. 8 feet
Growth SpeedSlow growth rate
Grown ForExotic bi-colored heart shaped foliage
Growth TypeCreeping
ContainerPlastic or terracotta pots
FloweringUnscented Yellow spathes
Flowering seasonDuring spring
AvailabilityPretty rare
ToxicityToxic to pets and humans

Philodendron Plowmanii is a beautiful plant with bi-colored foliage in the shape of a heart that grows best in containers.

Besides, they are easy to care for, making them suitable plants to grow for both beginners and plant experts.

Where to Buy Philodendron Plowmanii?

Do you know there are more than 55,000 posts about Philodendron Plowmanii within a single hashtag on Instagram? 

No wonder you want to get one for yourself, albeit expensive price tag.

So, to make it easier for you, here are some links to online stores where exotic Philodendron Plowmanii are on sale.

Commercial SiteDelivery Time
Etsy10-20 days
Aroid Market7-15 days
Plantcircle3-5 days
JavaCrop3-5 days
Ecuagenera8-16 days

Philodendron Plowmanii: Ultimate Grow & Care Guide

To maintain the Philodendron Plowmanii efficiently at home, you will need to give it plenty of space. It stretches around stringently whether it is cultivated outside or inside.

Moreover, Philodendron Plowmanii is a low-maintenance indoor plant as they do not require any special effort to care for. 

Philodendron plowmanii care requirements
Quick care instructions for Philodendron Plowmanii are shown in the figure above.

Let us get started with the overall care required for this plant, shall we?

FactorsFavorable Parameters
Sunlight and LocationBright indirect sunlight
At least 4-6 hours of sunlight in east or west facing window
Watering Once or twice a week in the summer season
Water the plant once or twice a month during winter
Temperature55°F to 88°F (12.8°C - 31.2°C)
Anything below 55°F is dangerous
Humidity60% or more
SoilA porous and well-draining aroid soil
pH: 4.5-6, slightly acidic
FertilizerFeed them with slow time-released fertilizer every two months
Cut back on fertilization during winter
RepottingRepot once a year during spring in a container larger than the previous one
PruningPrune occasionally during spring and summer to remove dead or decaying leaves
PropagationStem cutting in soil or water medium
Pest and DiseasesAphids, Mealybugs, and Spider mites
Root rot, Pseudomonas and Xanthomonas leaf spots & Erwinia blight

Now let us delve deeper into details.

1. Proper Sunlight and Warm Location

Philodendron Plowmanii is native to tropical rain forests; they are often found thriving under the cover of big trees.

Therefore, trying to mimic a similar lighting condition would be ideal for your plant to thrive.

Philodendron Plowmanii is a low to moderate light-loving plant that thrives well in bright indirect sunlit places for at least 4 to 6 hours daily.

Philodendron Plowmanii prefers at least 6 hours of indirect sunlight.

Meanwhile, the Plowmanii Philodendron are seemingly fine in low-light environments as well.

The morning sun won’t hurt your plant but instead promotes large, waxy foliage.

On the other hand, they shall not be placed where the direct sunlight falls upon them to avoid sunburn or scorching.

It is best to set back from a window to ensure that the sun doesn’t directly touch the foliage. 

Do you know your Philodendron Plowmanii can survive no light for like 12 to 20 days before dying of chlorosis?

Here are a few tale-tell signs your Philodendron Plowmanii may exhibit under low or excess sunlight.

Lack of SunlightExtreme Sunlight
Sparse or leggy growthBrowning leaves and tips
Plant leaning towards the light sourceLimp and dehydrated plant
Small leavesParched and cracked soil
No or stunted growthScorched leaves

Tips to Maintain Adequate Light for Philodendron Plowmanii

  • Try placing your plant in an east-facing window to get ample early morning sun.
  • Place them in a south-facing window; however, ensure to place them at least 5 feet away to avoid sunburn.
  • Ensure to use drapes or curtains to drop the light intensity.
  • If you are keeping your plant outdoors, ensure to provide them with partial shade and dappled sunlight.
Philodendron plowmanii under grow light
Philodendron Plowmanii has no problem growing under artificial grow light.
  • Ensure to rotate your plant once in a while to facilitate uniform light distribution.
  • Use a light meter to find the most optimal place with the best light intensity suitable for your plant.
  • Use full-spectrum grow lamps with 10,000 to 20,000 lux and at least ten hours if your plant shows light deprivation symptoms.

Ensure to go through this care guide about the Philodendron’s optimal light requirement.

Here, I have listed some grow lights ideal for your Philodendron Plowmanii. 

ProductsFeatures
Led Grow LightProvides full spectrum with good cooling performance
Lavish Home (72-G0820)5 feet tall light with adjustable neck floor lamp
SPIDER FARMER SF2000 LEDIncludes high efficiency, full Spectrum and new diode layout
Abonnylv 60W Led Tri LightContains that warm white light(3000k) leds + day light(5000k) leds + red light(660nm) leds + Ir light(730nm) led
Phlizon Pro 2000WOffers extremely large grow area and immable full spectrum

2. Regular Watering

Native to rainforest vegetation, Philodendron Plowmanii is a moisture-loving plant. It is critical to water them regularly.

Generally, Philodendron Plowmanii requires watering two times a week during active growth and once a week during winter.

You can follow the general rule of thumb and water your plant once the first few inches of soil dry out.

watering plant
Give your Philodendron Plowmanii water two times a week during the active growing season.

When winter kicks in, reduce the watering frequency to allow your plant to rest during its dormancy.

Not allowing the top of the soil to dry out between waterings can lead to root rot, eventually destroying your plant.

Moreover, your plant’s water needs vary depending on the climate and season. 

If your plant is showcasing the following signs, understand your plant is getting improper watering.

Overwatered SignsUnder-watered Signs
Dark-colored soilLight greyish soil
Browning or darkening leavesYellowed leaves
Lower stem decay and root rotWilted or curled leaves
Smelly potting mediumStunted growth

Solutions for Underwatered and Overwatered Plant

  • Consider deep soaking your underwatered Philodendron Plowmanii by submerging them in a pot half filled with soil mix.
  • Keep watering the plant unless you see the water running through the drainage holes.
  • Reduce watering of your overwatered Philodendron Plowmanii plant immediately and investigate soil quality and potential root rots.
  • Place your plant in a drier place with a slightly warmer place, and repot your plant if the soil looks drenched.
  • Trim off all dark, mushy, and rotted roots and apply fungicides to them before proceeding to the repotting.

Tips for Watering Philodendron Plowmanii

  • Do not stick to a hard and fast watering schedule. Instead, hydrate your plant when the top 2-3 inches of soil feels dry.
  • Alternatively, get a soil moisture meter and water when the reading falls below three or is in the dry zone.
  • Use clean filtered water, rainwater, or distilled water to water the plant.
  • You can also use tap water; however, let the tap water sit for 24 hours before use.
  • Water your plant during morning hours and follow the top watering approach. Or apply the bottom watering technique to encourage better root growth.
  • Do not water your plant with too hot or too cold water. Normal room temperate water will work best for your plant.

Pro Tip: Use chopsticks and shove them into the soil. If the first few inches of soil are dry, it is time to water your plant.

3. Warm Temperature

Philodendron Plowmanii is sensitive to cold and prefers warmer temperatures.

Philodendron Plowmanii prefers temperatures between 60 and 85° F (15 and 30° C) and dislikes cold frosty months, making it difficult to grow them outdoors in frosty climates.

Thus, growing Philodendron Plowmanii would be ideal in USDA zones 9 to 11.

Effect of temperature in plants
Temperature influences plants’ photosynthesis, transpiration, germination, and flowering process.

If the temperature falls below 55°F (~12.8°C), the foliage may develop dark brown/black patches caused by cold shock.

Moreover, extensive exposure to cold temperatures suppresses the growth of foliage and may ultimately lead to death.

In contrast to coldness, exposure to very high temperatures increases transpiration, leading to extreme dehydration.

Generally, severe damages from extreme temperature include chlorosis, leaf necrosis, and cell damage.

Tips to Maintain Ideal Temperature

  • Avoid placing your plant near the heat radiators, air conditioning vents, drafty windowsill, or electric fans.
  • Ensure to keep your plant out of reach from direct sunlight to avoid sunburns.
  • Try arranging a greenhouse with artificial heat regulation for your plant during its dormant period.
  • Use frost blankets to cover the plant protecting it from frosts, and place heating pads underneath the plant pot to keep them warmer.
Frost Blanket in Use
Using a frost blanket keeps your plant warm throughout the winter.
  • Opt for using pine straws and dried grass on top of the soil to trap heat.
  • If the temperature falls below 55°F, keep your plants indoors under LED grow light throughout the wintery months.
  • Regularly mist your plant and increase the watering schedule when the summer kicks in to compensate for the heat.

4. Moderately Higher Humidity

To keep tropical plants, it is necessary to provide them with extra humidity.

Generally, Philodendron Plowmanii prefers high relative humidity (60% or more), but it can survive on average to significantly reduced levels.

Furthermore, it will be beneficial to keep your Philodendron Plowmanii at a relatively higher humidity level, similar to its natural habitat.

Misting in the soil to increase the humidity
You can increase the humidity by misting your plant during morning hours.

Meanwhile, it is not easy to maintain the higher humidity, but the latest technologies like a room humidifier can help you achieve it.

Remember, anything below or above the suggested humidity value can be detrimental. 

Watch out for these tell-tale signs in your Philodendron Plowmanii.

Too Low HumidityToo High Humidity
Wilting, drooping and shriveled LeafStems and leaves rot
Yellowing of leaves edges (chlorosis)Patches of grey mold on the leaves
Brown leaf tips and leaf marginsFungal growth and give rise to chances of fungal infections
Curled leaves may fall in severe conditionsMay result in development of Xanthomonas bacteria infection

Tips to Maintain High Humidity for Philodendron Plowmanii

  • Invest in the electric humidifier to adjust the humidity level per the care requirements.
  • Increase humidity by setting the plant in a deep pebble dish with water, ensuring the moisture does not touch the planter.
  • Grouping plants is also an excellent way to boost humidity around the plant. 
  • Mist the plant occasionally during summer or when the temperature exceeds 90°F. However, clean the leaves after misting to avoid fungal growth.
  • Use a hygrometer to measure the humidity level so your plant is getting and follow accordingly.

5. Light, Well-Draining Soilless Mix

As we all know, we bring home the Philodendron Plowmanii for its exotic bicolored heart-shaped leaves.

Therefore, it is essential to provide them with the best soil mix that suits their requirements.

Philodendron Plowmanii loves light and airy soilless mix with acidic nature (pH values ranging from 4.5 to 6).

soil for Philodendron Plowmanii
Provide your Plowmanii with a light, airy soil enriched in nutrients

While preparing potting mix at home, ensure you do not add clay soil as it discourages water draining, and too much sandy soil may not hold water.

Also, avoid garden soil because it becomes waterlogged when watered and reduces air circulation.

You can prepare an ideal potting mix for your Philodendron Plowmanii at home.

Follow the homemade recipe below. 

Homemade Potting Mix Recipe for Philodendron Plowmanii

  • 35% Coco Coir
  • 35% Perlite
  • 25% Orchid barks
  • Top it with 5% Worm casting

Similarly, you can use a commercially readymade potting mix for your plant. Here are some amazing commercial potting mixes for Philodendron Plowmanii:

6. Bimonthly Fertilization

Regarding fertilizer needs, Philodendron Plowmanii does not require frequent fertilizing; they do quite well even without fertilization.

But if you want to speed up your plant’s growth even more, there’s nothing wrong with adding a little fertilizer periodically.

Generally, Philodendron Plowmanii prefers balanced 10-10-10 slow-release fertilizers every two months during its growing season.

fertilize philodendron plowmanii
Nitrogen-rich fertilizer every two months will benefit Philodendron Plowmanii.

But it is best to avoid fertilization during the winter to avoid over-fertilization issues.

Furthermore, you shall opt for Nitrogen rich fertilizers to promote exotic dual-colored foliage of Philodendron Plowmanii.

These exotic houseplants can also be fertilized with liquid fertilizers but ensure to avoid low-quality fertilizers.

Tip: Always dilute liquid fertilizers to their half strength before applying them so as to avoid fertilizer burn.

Although Philodendron Plowmanii thrives with little fertilizer, a deficiency in soil nutrients can make your plant lose its beauty.

In addition, inadequate fertilization results in stunted growth, fading foliage color, and yellowing leaves.

On the other hand, overfertilization may harm your plant through chemical burns and salt build-ups on the soil.

How to Treat Overfertilized Plant?

  • Place your plant on the sink and run water on them while letting the water drain out from the drainage holes.
  • Repeat the process three-four times to flush out the excessive nutrient build-ups completely.
  • Do not fertilize your plant until it returns to its original healthy state.
  • If your plant pot does not have proper drainage, consider repotting your plant to a new potting mix after running the plant roots on lukewarm water for a while.
  • Use homemade organic fertilizers to avoid the risk of chemical burns and salt build-ups.
Salt Build up due to Overfertilization
Cut off fertilization during the winter to prevent salt build-ups due to excessive fertilizer in the soil.

Here are some commercial fertilizers for your Philodendron Plowmanii.

Pro Tip: When using slow-release fertilizers, ensure to apply fertilizers at least 6 inches away from the plant base to avoid any chemical burns.

7. Growth Rate, Foliage, and Flowering

Do you know the leaf color of Philodendron Plowmanii differs depending upon the environmental factors?

Philodendron Plowmanii is a creeping evergreen plant with a slow-paced growing habit.

When given optimal growing conditions, a mature Philodendron Plowmanii will reach a height of eight feet and a width of nearly two feet.

The active growing time for Philodendron Plowmanii is spring and summer, whereas dormancy is in winter.

Although most Philodendrons are climbers, your Plowmanii is not one of them. Instead, it is a creeping plant.

leaf of philodendron plowmanii
Philodendron Plowmanii has large waxy leaves with a green color gradient.

The color combination of varying glossy green gradients on leaves along the creamy-colored veins is truly an alluring beauty that everyone adores.

Furthermore, younger Philodendron Plowmanii tends to have silvery streaks on its round leaves.

This exotic plant with velvety leaves strictly grows on the ground and also can grow as a hemiepiphyte in rare cases.

They have a sub-leathery surface and a slightly shiny upper portion. The lower side is lighter in color and has a matte finish.

Philodendron Plowmanii’s multicolored petiole with rippling winged borders towards the apex, is its one of the most interesting features.

Moreover, the Philodendron Plowmanii’s stem acts as a base rather than supporting the giant leaves.

Your Philodendron Plowmanii won’t leave your side for many years if you keep showering love and affection on it.

Flowering Habit

Philodendrons are very unlikely to bloom when kept as indoor houseplants, so you rarely see them bloom.

Furthermore, Philodendron Plowmanii produces a bloom after reaching maturity (usually 10-15 years) with an inflorescence. 

Generally, it produces three simple white to yellow spathes per axil on a reddish-tinged peduncle.

Philodendron plowmanii flower
Philodendron Plowmanii blooms after fully mature, i.e., after 10 to 15 years.

These inflorescences are unscented, meaning they have no smell or odor.

Although they might bloom in the spring in the wild, it is very unlikely for your Plowmanii to bloom indoors.

Do you know Philodendrons are thermogenic plants that produce heat by burning fats to attract pollinators? 

After the successful pollination, Plowmanii flower spathe turns into fruit. When the fruit is mature, you can extract seeds from it.

Generally, the seeds are globular or ellipsoidal, which you can harvest from the fruit during late summer.

You can use these Philodendron seeds and propagate your Plowmanii.

8. Potting and Repotting

Philodendron Plowmanii prefers to stay in a pot with its roots free rather than rootbound.

To keep your Philodendron Plowmanii happy and healthy, repot it annually in a slightly larger pot than the previous one.

The ideal time for repotting your Philodendron Plowmanii would be spring or summer.

potted philodendron plowmanii
Repot your Philodendron Plowmanii once a year in a pot slightly bigger than the previous one.

Repotting your plant once a year refreshes the soil, providing better nutrient sources and aeration for the plant while growing. 

Meanwhile, it despises being tethered to the ground and requires abundant space to fit its enormous size. 

Therefore, when the roots are not overly crowded, Plowmanii becomes tall and healthy.

To encourage healthy growth, transplant your Plowmanii in the following cases. 

  • Your plant has been severely affected by a deadly illness. 
  • Roots are poking out from the pot’s drainage holes or are about to escape from the topsoil.
  • The plant has become big and bulky, requiring support to hold its posture.
  • No new foliage development or stunted growth.
  • Potting soil has become tight and compact discouraging proper drainage and air circulation.
  • Overfertilization situation with excessive salt build-ups in the soil.

Steps to Repot Philodendron Plowmanii

Let’s take a look at a step-by-step guide.

Step 1: Choose an Ideal Container

Clay or terracotta pots work best Philodendron Plowmanii.

However, you can use plastic pots with multiple drainage holes to facilitate proper drainage.

Here are a few recommendations.

ContainerSpecification
LE TAUCI Ceramic Plant Pots4+5+6 inch, Set of 3, Planters with holes in the bottom.
Classic Planter, 8" (Plastic)They are durable and lightweight. The drainage holes lie at the bottom.
Plastic Planter, HOMENOTE (Plastic)Comes in five different sizes 7/6/5.5/4.8/4.5 Inch.
Step 2: Choose Soil Mix and Transplant
  • Prepare or select the ideal soil mix for your Philodendron Plowmanii as instructed above. 
  • Carefully extract the plant from its existing pot or planter.
  • Inspect the roots for diseases and trim away any damaged or diseased roots.
Potting soil spoiled from pot
Airy, loose, and well-draining soil is good for the Philodendron Plowmanii.
  • Gradually loosen the roots of the plant with your fingertips. You can prune any extra-long threadlike roots away.
  • Fill the empty container with fresh potting soil and place the plant inside with roots facing down.
  • Fill up the remaining portion of the pot with soil mix but leave about a few inches of space at the top.
  • Water your plant thoroughly and let it rest in its previous thriving position.

Remember, a newly repotted Philodendron Plowmanii does not require fertilization.

9. Occasional Pruning

Philodendron Plowmanii is a low-maintenance plant that does not require pruning regularly.

However, pruning off old, decayed growth or dead leaves regularly would ensure a clean and healthy Philodendron Plowmanii plant.

pruning philodendron plowmanii
Occasionally trim off old, decaying parts of Philodendron Plowmanii to keep them healthy.

Ensure to remove dead, yellow, or damaged foliage. Remember that excessive pruning can slow the plant’s growth rate.

Additionally, pruning Philodendron Plowmanii at the beginning of autumn would benefit your plant for better growth.

Tips to Prune Philodendron Plowmanii

  • Examine the plant’s structural stability and check whether it is getting lanky or has sick or decaying foliage.
  • Employ pruning shears if the plant’s stems and branches are robust. Kitchen knives may provide you with a smoother cut.
  • Remove all the damaged leaves and stems from the plant. 
  • Make appropriate incisions to foster new growth. Ensure to trim just before a node close to the main stem as feasible while trimming back larger stems.
  • Do not trim off more than 25 percent of the plant simultaneously.

Toxicity of Philodendron Plowmanii

According to ASPCA, Philodendron Plowmanii is toxic to humans and pets, like other Philodendrons.

All parts of the Philodendron plant contain insoluble calcium oxalate crystals that make them toxic for pets.

Therefore, keep your dogs, cats, and kids away from the plant to avoid accidental ingestions.

cat next to plants
Keep Philodendron Plants away from your pets and kids as they are toxic.

Signs of Philodendron Plowmanii Toxicity in Pets

  • Skin irritation
  • Nausea 
  • Vomiting
  • Oral discomfort with swelling and blisters
  • Loss of appetite
  • Difficulty swallowing and breathing
  • Scratching at the face or mouth

Pro Tip: Keep your pets away from plants by using pet repellant sprays.

If you suspect your pets or children have accidentally consumed them, see a doctor as soon as possible.

Additionally, the sap causes allergic reactions in some people, so wear gloves when handling it.

In case you need medical assistance, here are two helplines for you to consider:

Read more about the toxicity profile of the Philodendron to Dogs.

Propagating Philodendron Plowmanii

Philodendron Plowmanii is more expensive than other houseplants and is difficult to find. As a result, propagating Philodendron Plowmanii would be an excellent method of populating them. 

Moreover, there are two different techniques to propagate your plant. They are via stem cuttings and the air layering method.

But, many plant owners or gardeners prefer stem cuttings as it is easier to yield results faster.

The ideal time to propagate Philodendron Plowmanii is during spring or summer.

Some gardeners and plant owners follow seed propagation despite its staggering lengthy and delicate process.

Materials Required for Propagation

Before getting your hands dirty, ensure to get these items needed for propagation.

Materials RequiredPurpose
Gardening KnifeFor stem cutting
Gardening GlovesFor safety
Potting MixPotting Medium
PerliteFor extra drainage
Rooting HormoneFor best growth
Terracotta Pot with a Drainage HoleWell draining organic pottig mix
HumidifierTo maintain the humidity

1. Propagating via Stem Cutting

The propagation of Philodendron Plowmanii via stem cutting can be carried out in soil or water medium.

Before starting the propagation process, wear protective gear such as gloves and glasses to avoid accidental allergies.

roots coming from stem cutting of Philodendron plowmanii
Propagation of Philodendron Plowmanii via stem cutting is the faster and easiest method.

Here is a complete step-by-side guide for propagating via stem cutting.

Step 1: Cut the Stem

  • Disinfect a pair of scissors or small pruning shears with rubbing alcohol.
  • Select a stem with several leaves and nodes. 
  • Ensure to cut the stem at least 4-inches long.
  • Try to cut the stem clean at a 45° angle to increase the surface area of the exposed node.
  • Leave it aside and let the cut end produce callous, which helps with regrowth.

Step 2: Choose Soil or Water Medium

Here are the proper detailed steps to propagate via each medium.

For Water Propagation
  • Get a clean jar and fill it with clean, tepid water leaving about one-inch space at the rim.
  • A few hours prior, let the water sit, then place the stem cutting.
  • Add a few drops of rooting hormones to encourage healthier root sprouts.
stem cutting on water for propagation of philodendron plowmanii
Add rooting hormone in water to increase better growth of the root of Philodendron Plowmanii.
  • Position the stem cutting in a jar of lukewarm water (too hot or too cold may damage the cutting).
  • Ensure to immerse the bare nodes fully in the water.
  • Set the jar in a warm location with plenty of indirect sunlight.
  • Keep changing the water every 2-4 days to refresh the plant and prevent bacteria from building up.
  • It takes 2-3 weeks or the cutting to grow roots.
  • Once the roots are 1-2 inches long, remove them from the water and plant them in a high-quality potting mix.
  • Resume with the regular Philodendron Plowmanii care.
For Soil Propagation
  • Prepare a starter potting mix using perlite, peat moss, and orchid barks in a 2-3 inches pot.
  • Place the cutting in starter soil while leaving out the leaves.
  • For faster root development, add rooting hormone powder into the mix.
  • Water frequently enough to keep the soil moist, and water immediately if it dries.
New roots may sprout within 3-4 weeks of placing stem cutting on soil mix.
  • The optimal temperature for stem cutting to encourage growth is about 70 to 75°F.
  • Cover your stem cuttings with clear plastics to mimic a mini greenhouse for humidity.
  • Delicately pull the plant and feel the resistance it delivers to see if the roots have begun to grow.
  • When you notice that strong roots have formed, it usually takes 3 to 4 weeks. After that, transfer the plant to its designated planter or pot.

2. Propagation Via Air Layering

Air layering, also known as marcotting, is a popular technique of propagation used for rare and valuable plants or subtle cultivars.

This technique minimizes the loss of lower leaves common in fresh cuttings that are actively growing roots.

To air layer your Philodendron Plowmanii, follow these instructions:

  • Select a healthy part of the plant with at least two nodes for efficient propagation.
  • Cover the nodes with the help of sphagnum peat moss or coco coir. Be generous while covering the nodes.
  • To keep the peat moss or coir intact with the nodes, use a cling wrap to ensure it is stable and won’t fall apart. 
  • Mist the moss or coir to keep it moist throughout the whole time. 
  • You can use a chopstick and make holes in the cling wrap to encourage proper air circulation inside the wrapper.
  • Aerial roots shall appear or sprout within 3-5 weeks, so wait till then while ensuring proper care of the plant.
  • Once you notice aerial roots developing on the peat moss or coir, proceed to transplant by removing the cling wrap.
  • Remove the propagated portion from the mother plant and plant it in the ground.

Common Problems in Philodendron Plowmanii

Although Philodendron species are not very prone to pests and diseases, they can sometimes confront pests or horticultural issues.

Here are the common problems that your Philodendron Plowmanii may suffer from.

1. Common Plant Pests

Generally, when a plant is provided with higher humidity and moisture content, some common sworn enemies of houseplants attack the plant.

Some of those plant pests that you shall need to be aware of are aphids, spider mites, scales, and mealybugs.

These small yet very harmful creatures cause severe problems and may even cause untimely death when left untreated on time.

Common Pests Signs
Aphids1. Curling and falling off leaves
2. Stunted growth
Spider Mites 1. Webbings develop underside of leaves or at leaf axils
2. Feast on plant's fluid resulting in drooping and wilting of leaves
Mealy bugs 1. Responsible for sooty molds
2. White cotton like substance on underside of leaves
3. Stunted growth
Scales1. They suck the juice out of plants causing deformed leaves, brown pock marks
2. Sudden wilting and discoloration of foliages
Thrips1. Causes discoloration, premature dying of flowers and buds
2. Feasts on leaves causing them to shed and stunting or dwarfing.

Solutions

  • Immediately prune off heavily infected parts of the plants.
  • Apply insecticidal soap or neem oil by spraying them on plants as an organic solution.
Spraving Neem Oil On foliage of a Plant
Apply neem oil to eliminate underlying pests and their larvae.
  • Wash your infected plant with the help of a water hose to remove underlying pests, larvae, and eggs.
  • Apply alcohol or dish soap using a cotton ball to kill pests.
  • Use a horticultural oil or isopropyl alcohol to remove pests and their eggs.
  • Handpick observable pests and throw them in soapy water. Remember to wear gloves to avoid any potential allergies.
  • If nothing seems to be working, resort to Malathion solutions or Pyrethrin spray.

Find out about How to Use Neem Oil on Indoor Plants?

Preventive Measures 

  • Immediately isolate suspicious sick-looking plants to prevent further spreading.
  • Regularly inspect your plants’ health and monitor the environmental parameters as a precaution.
  • From time to time, cleaning your plant leaves with soapy water solution can do wonders during the growing seasons.
  • Opt for using yellow sticky traps around the plant to capture pests.
  • Be careful with your fertilizer as low-quality fertilizers invite different pests and soil toxicity problems.
Pest infested leaves
A pest infestation can ultimately kill the plant.

Find out why your Philodendron Leaves are curling.

2. Horticultural Diseases

The Philodendrons are popular for their higher resistance to getting sick from diseases. 

However, when they are not provided with proper care, your Philodendron Plowmanii is more prone to get infected with several diseases.

Generally, horticultural diseases are caused by excess humidity and waterlogged compact soil.

bacterial spot on philodendron plant
Bacterial leaf spot on Philodendron causes round yellow or brown spots on the plant’s leaves.

Here I have listed some of the common diseases observed in Philodendron Plowmanii.

DiseaseProblems
Root rotDrooping and rapidly yellowing leaves, stunted growth and a rotten brown base is the primary sign of possible root rot.

Brown and mushy texture on the root is another sign.
Erwinia blightAppears yellow, pale, and less vigorous.

Shunted growth of the plant and usually affects plants that live in waterlogged soil.
Pseudomonas leaf spotReddish brown spots on the leaf spots causing leaves and stem to appear fragmented.

Build watery, yellow lesions and begins to droop.
Xanthomonas leaf spot (Bacterial Blight)It is caused by the pathogen Xanthomonas campestris pv. Dieffenbachiae.

It forms transparent spots on leaf edges that develop brown with tan or yellow halos.
Rust SpotsTiny specks or spots on leaves that range in color from orange to rusty-brown, brownish-yellow, purple and red.

Solutions

  • Immediate quarantining of the plant to prevent further spreading of infection
  • Take out the plant to investigate the condition of the roots and look out for healthy white roots.
  • Thoroughly inspect the plant to grasp the severity of the problem and discard the plants if the condition is too severe and helpless.
  • Trim the rotted roots to salvage the plant if any healthy roots are present.
  • Before placing the plant in a new fresh potting mix, apply fungicides to the cut ends.
  • Use Medallion(fludioxonil) and Prostar (flutolanil) to treat fungal diseases effectively.
  • Apply fungicides containing Chlorothalonil and Mancozeb to control the spreading of rust spots.

Xanthomonas, Erwinia blight, and rust spots are hard to control via chemical applications, so it is best to adopt preventive measures before your plant gets infected with them.

Preventive Measures

  • Try to keep your plant within the recommended level of humidity and temperature.
  • Avoid high humidity for an extended period as they are favorable conditions for fungal diseases.
  • Avoid misting leaves during the winter and in the evening.
  • Apply copper, and sulfur powder enriched fungicides to keep the horticultural diseases at bay.
  • Keep your plant in a bright warm sunlit place. Remember, direct sunlight is a big NO.
  • Do not place suspicious sick looking plants in your plant collection.

3. Chlorosis Conundrum

Chlorosis Conundrum is a Magnesium deprivation condition that causes the V-shaped yellowing on leaves of the Philodendron plant.

Generally, Magnesium (Mg) is vital for plants to produce Chlorophyll, and a lack of Mg causes a drop in Chlorophyll.

yellowing leave of philodendron plowmanii
Lack of magnesium in the soil causes a Chlorosis conundrum in Philodendron Plowmanii, with edges turning yellow.

Yellowing or color fading with the premature death of the leaves are the major symptoms of chlorosis.

Magnesium deficiency occurs if you readily use potash or fertilizer enriched with potassium.

To overcome this problem, add one tablespoon of magnesium sulfate or Epsom salts per gallon of water and thoroughly soak the soil with it.

But ensure leaves and stems are not getting splashed from salt water. Meanwhile, you can perform soil pH tests from time to time as Mg deficiency is often seen in alkaline soils.

Resemblance Philodendron Plowmanii to Other Similar Plants

Philodendron varieties share quite similar features like giant leaf shapes, flowers, and growing natures.

So, it’s no wonder people make mistakes while identifying them.

Let us find out the differences between other plants that may look like Philodendron Plowmanii, shall we?

Philodendron Plowmanii vs. Mamei

Philodendron Mamei is often mistaken for Plowmanii due to their identical striking resemblance.

But you can easily recognize them thanks to two additional distinctive characteristics that they have.

Philodendron plowmanii vs Philodendron Mamei
Philodendron Plowmanii does not have silvery variegation, but Philodendron Mamei does.

Firstly, Mamei leaves have silvery white variegation with closely spaced veins on their glossy leaves.

Meanwhile, Plowmanii has widely spaced veins with no variegation in its leaf.

Secondly, Plowmanii has unique fabric-like ruffly edge petioles, which are not present (or very small ones) in the Mamei plant.

Other than these two major differences, you can feel and observe the veins on the leaf of Plowmanii a bit more sunken than of Philodendron Mamei leaf.

Philodendron Plowmanii vs. Gloriosum

Another Philodendron species that is often falsely identified as Plowmanii is Philodendron Gloriosum.

Although these two share identical leaf shapes and sizes along with growing habits, you can still distinguish these two in similar ways as in Mamei.

Philodendron Plowmanii has wavy wings like wide petioles, but on the other hand, Gloriosum does not.

Philodendron plowmanii vs Philodendron Gloriosum
Philodendron Plowmanii has a darker green leaf, while Gloriosum has velvety dark green.

Moreover, Gloriosum has a pinkish color tone near the apex, while Plowmanii has reddish purple-tinged.

Another way to differentiate them is leaf color, i.e., Gloriosum has a velvety dark green leaf with whitish midrib, while Plowmanii has a dark green leaf with green midrib.

Read more about complete care guide of Philodendron Gloriosum

Philodendron Plowmanii vs. Pastazanum

Like I mentioned above, just look at the petiole fashion and leaf coloration with veins properties to identify Philodendron.

Philodendron plowmanii vs. Philodendron Pastazanum
Philodendron Plowmanii and Pastazanum have a similar heart-shaped leaves but differ in color intensities and midribs.

Philodendron Pastazanum leaf features a velvety green matte look with paler midribs, but Plowmanii has a more dark green look with dark green midribs.

You can also see colorful wingy petiole patterns in Plowmanii but not Pastazanum.

Frequently Asked Questions About Philodendron Plowmanii

Why are the Leaves on my Philodendron Plowmanii Round?

Round leaves mean your Philodendron Plowmanii is still young and has not reached its full potential. 

Don’t worry! Philodendron Plowmanii is a slow grower, not a shower.

So, they take several years to turn adult and flaunt their heart-shaped bi-colored foliage.

Is There Philodendron Plowmanii Variegated?

Although rare, Variegated Philodendron Plowmanii does exist. They are very hard to find and are expensive as well.

Some Variegated Philodendron Plowmanii is Philodendron Plowmanii Citrus and Philodendron Plowmanii Silver.

How Much Does a Philodendron Plowmanii Cost?

Generally, Philodendron Plowmanii costs around $80 to $200. However, Variegated Philodendron Plowmanii costs more than $1000.

Conclusion

Philodendron Plowmanii is an exotic rare tropical plant suitable for all with its easy care and growing needs.

However, be aware you still need to give them a dream-like home if you want to show off large, waxy heart-shaped foliage.

Thoroughly follow this guide to keep your Philodendron Plowmanii happy and healthy.

Keep reading about other Philodendron varieties such as  P. Pink Princess, Splendid,  P. Rio, and  P. Lupinum

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