The aesthetic foliage of Monstera Obliqua (Laceleaf plant) falters away and turns yellow under improper care conditions.
Moreover, ensure weekly watering during the growing season and feed once a month with diluted houseplant fertilizer to ensure even growth.
Read more to beat misconceptions around Monstera Obliqua and find a reliable growing guide.
Table of Contents Show
- Monstera Obliqua: Debunking the Myth
- Monstera Obliqua – Complete Grow & Care Guide
- Monstera Obliqua: All About Growth
- Propagation Methods for Monstera Obliqua
- Toxicity of Monstera Obliqua
- Where to Buy Monstera Obliqua?
- Monstera Obliqua vs. Adansonii
- Monstera Obliqua vs. Monstera Esqueleto
- FAQs About Monstera Obliqua
- From Editorial Team
Monstera Obliqua: Debunking the Myth
A big misconception is that 90% of Obliqua [oh-BLIK-wuh] leaves are made of perforations or holes.
Not every Obliqua species bear the fenestration. Some are born with whole leaves and variegations.
But only a few species, like ‘Peru Obliqua’ hailing from Peru, have signature fenestration and are prized for their exotic looks.
|Scientific Name||Monstera obliqua|
|Common name||Monstera Unicorn, Window-leaf, Swiss-Cheese Vine, and Mexican Breadfruit|
|Native||Central and South America|
|Growth Zone||USDA zone 10a, 10b, 11|
|Plant Type||Evergreen, climber|
|Growth Size||8-10 ft. (2.4-3 m) tall and 15-20 ft. (4.7-6 m) wide|
|Foliage||Deep green, whole heart-shaped but some are heavily fenestrated and may have variegation (green and white)|
|Foliage size||10-25 cm|
|Toxicity||Toxic to Humans and Pets|
|Common Pests||Mealybugs, Spider mites, and whiteflies|
|Horticultural Diseases||Dasheen Mosaic Virus (DMV), Bacterial Leaf Spot, Powdery mildew, Southern Blight|
Monstera Obliqua – Complete Grow & Care Guide
An easy-to-care-for Monstera Obliqua requires regular care and occasional maintenance around the year.
Here is a quick care hack highlighting the primary care requirements of Monstera Obliqua.
Now, let us delve deeper into the complete care for Monstera Obliqua, shall we?
1. Sunlight & Temperature
Monstera Obliqua thrives in bright shaded with filtered sunlight in a warmer climate (60-80°F).
Remember, they are susceptible to excess heat and scorching that discourage signature fenestration.
Scorched Obliqua leaves begin yellowing with brown spots and crispy dry brown tips.
Moreover, low light and cold temperatures (<60°F) cause Monstera to wilt, droop, and curl alongside leggy growth.
To compensate lack of sunlight in winter, use an LED grow light for about 10-12 hours.
Similarly, use frost blankets, heat pads, or mulches on top to protect them from frosts.
2. Watering & Humidity
As a tropical plant, Monstera Obliqua enjoys the high humid (80-90%) conditions and prefers moist but not soggy soil.
Otherwise, use a moisture meter or water them once the top inches of soil feel dry using chemical-free water.
If you notice dark-colored smelly soil with browning leaves, root rotting, and decaying lower stems, they are the signs of overwatered Obliqua.
Likewise, low humidity and lack of moisture cause yellowing, wilting, and curling leaves.
Thus, accommodate flexible watering habits and adjust as per the surrounding parameters.
You can place your Monstera Obliqua in a bright kitchen or bathroom and follow the bottom watering approach aided with an occasional overhead shower.
3. Soil & Fertilizer
Monstera Obliqua is rather fussier about the proper soil need and may quickly wither in poor potting mix.
Similarly, monthly fertilize Monstera Obliqua in the growing season with a balanced liquid formula.
But refrain from fertilizing them in winter to dodge chemical root burn brought by overfertilization issues.
Moreover, excess fertilizer often results in stunted growth, droopy foliage, and brown spots.
Thus, aim to apply slow-release food once every three months to ensure optimal growth.
Likewise, nutrient-deficient plants show signs like pale green leaves with yellow or brown patches and have a crispy appearance.
Pro Tip: When applying, dilute the fertilizer and keep the fertilizer solution 6 inches away from the plant base.
4. Yearly Pruning
Monstera Obliqua is a slow-grower aroid of the Araceae family, so they hardly need any pruning.
However, pruning yellowing, damaged, or leggy foliage encourages optimal plant growth. Thus, regularly inspect and prune away decaying parts.
You can aim to prune your Monstera in the early spring to encourage optimal growth.
5. Potting & Repotting
Being a slow grower would only require repotting when the roots have substantially outgrown the pot.
Besides, you must repot your Obliqua when they are infected with horticultural diseases.
Generally, excess humidity invites problems like Mosaic virus (DMV), Bacterial leaf spot, Powdery mildew, and Blight.
|Dasheen Mosaic Virus||Caused by Aphids||Distorted leaves, Curling leaves|
|Bacterial Blight||Xanthomonas axonopodis pv. dieffenbachiae||Yellowed (chlorotic), water-soaked lesions in the leaf edges.|
|Bacterial Wilt||Ralstonia solancearum||Leaves veins and stems turn brown and bronze color.|
|Rhizoctonia Root Rot||Rhizoctonia solani||Young stems are girdled, water soaked lesions.|
|Phytophthora and Pythium Root Rot||Phytophthora nicotianae var. parasitica and Pythium splendens||Wilting plants, root sloghing, foliage may exhibit black to brown leaf lesions.|
|Anacthrose||Colletotrichum||Infected plants develop dark, water soaked lesions on stems.|
After thoroughly inspecting the severity of the problem, dispose of the plant if it does not appear salvageable.
Otherwise, apply Medallion (fludioxonil) to treat a wide range of fungal infections, followed by repotting.
After repotting, if you notice drooping Monstera, thoroughly water to moisten the soil.
Monstera Obliqua: All About Growth
In natural habitats, Monstera Obliqua can grow over 20 feet tall despite its slow growth.
They actively grow and add new foliage during spring and summer but remain dormant in winter.
Thus, cut back basic cares like fertilization and watering in winter as they have minimal uptake.
Like any Monstera plant, they are mainly grown for their foliage quality and appearance.
Each stem boasts numerous leaves in varying shapes, ranging from lanceolate to broadly ovate, usually reaching 10-25 cm long.
Though fenestration appears even in the juvenile stage of Obliqua Peru, variegated Obliqua will only begin producing a whitish layer on the leaves as they mature.
But Monstera Obliqua, kept outdoors with conducive care, can bloom at any time of the year.
Generally, they will begin flowering after 1.5 years from the germination of Monstera seeds.
After successful pollination, the inflorescence will begin fruiting and produces Monstera fruit.
The spathe turns green and turns deep orange in the latter phase.
However, unlike other Monstera fruits that witness berries arranged together, Obliqua berries are free from one another.
Propagation Methods for Monstera Obliqua
Monstera Obliqua can be propagated via stolen and stem-cutting methods, where the latter is more accessible and yields quicker results.
Aim to propagate Monstera in early spring or summer to ensure favorable conditions for root growth.
Now, let us start with propagation methods, shall we?
1. Propagation via Stem Cutting
Propagating via herbaceous stem cutting is the easiest way to propagate Monstera Obliqua.
- Identify healthy green upright stems with multiple leaves.
- Take 5-7 inches long stems with at least two nodes.
- Remove all but two or three leaves at the top and root hairs.
Rooting in Water: Submerge the cutting in a jar filled with chlorine-free water and rooting hormone.
- Move it to a warm location with bright, indirect sunlight.
- Change the water every 4-5 days to prevent bacterial growth.
- Roots should sprout within 2-3 weeks, and once they grow over 1-2″ long, transplant them to an appropriate potting medium.
Rooting in Soil: Apply fungicide and rooting hormone to the trimmed end.
- Gently slide the cutting into a 3-inch container filled with fresh mix.
- Thoroughly moisten the mix with water and let it sit.
- Place it in a warm location with indirect sunlight and cover it with a self-sealing plastic bag to reduce water loss.
- Let it sit for at least 4-6 weeks or more to begin seeing new feeder roots.
You do not need to fertilize the stem cutting for about 3 to 4 months as enough nutrients are in the mix.
2. Propagating via Stolon
Propagating via stolon is slightly tricky and more appropriate for seasoned growers.
Stolon is any slender stem that grows horizontally along the soil line and produces roots and aerial branches.
Moreover, this plant does not often create theft, making acquiring one difficult.
- Identify the stolon and cut it above the lower node using a sharp pruning shear.
- Place the cutting in a substrate and set it aside in a warm location with bright indirect sunlight.
- Mist the stolen regularly after it begins developing roots.
- Once the root grows about 1-2 inches, after 3-4 weeks, transfer it to a new pot with the appropriate potting mix.
Toxicity of Monstera Obliqua
Monstera Obliqua is also toxic to humans and pets, like other Monstera and familial aroids.
The severity of the poisoning would depend on the intake dosage and can cause kidney failure in critical cases.
Thus, keep the plant out of pets’ and kids’ reach to ensure no accidental consumption.
- If you suspect poisoning in your children or pet, contact the American Association of Poison Control Center at (800) 222-1222.
- Contact ASPCA Poison Center at (888) 426-4435 for pet poisoning.
Where to Buy Monstera Obliqua?
Much to our surprise, Monstera Obliqua is not so rare to buy.
However, many retailers may sell M. adansonii by calling it Monstera Obliqua. So, remember to look out for key distinct features before buying one.
Otherwise, aim to buy one from a reputed, verified online retailer with the best user rating.
|Where to Buy||Shipping Details|
|Etsy||Expect to receive your delivery within 7-10 days.|
|Carousell||Ships within 7-15 days|
|NSE Tropicals||Immediate shipping if available|
|Plantly||Within a week|
Monstera Obliqua vs. Adansonii
Many growers mistake Monstera Adansonii for Monstera Obliqua because they boast similar-looking fenestrated leaves.
However, there are some striking differences between the two plants, which you should look closely at when purchasing.
|Monstera Obliqua||Monstera Adansonii|
|It develops thin, paper-like leaves with deep fenestrations.||It gradually develops robust leathery leaves with lighter fenestrations.|
|The fenestrations are not symmetrical and may appear anywhere inside the leaf.||The fenestrations are symmetrical in structure.|
|The variegated leaves lack fenestration of any kind.||The fenestrated leaves are also variegated in appearance.|
|It is slightly pricier than Adansonii because of less circulation, costing a whopping $150 or more.||You can easily find one for under $50.|
Monstera Obliqua vs. Monstera Esqueleto
Although both Monstera boasts heavily fenestrated leaves, Esqueleto boasts slightly different colored leaves.
There are some striking differences between the two.
|Monstera Obliqua||Monstera Esqueleto|
|Monstera Obliqua is the most heavily fenestrated Monstera species.||It boasts heavily fenestrated leaves but slightly lesser than Monstera Obliqua.|
|The leaves are almost paper-like thin when touched.||The leaves feel leathery, thick, and waxy.|
|It gives a deep green shade (except for the variegated subspecies).||It provides a slightly lighter shade of green with a yellowish tinge.|
FAQs About Monstera Obliqua
Why is Monstera Obliqua so rare?
They are slow-growing tropical plants, so only little stock is available for sale. But there is a massive demand for them, making them so rare.
Is Monstera Obliqua indoor plant?
Like any other Monstera plant, Obliqua is an indoor plant proliferating in a bright, warm room.
From Editorial Team
Monstera Obliqua is a magnificent plant that stays problem-free when provided at a relatively higher humidity level.
However, the pattern or size of fenestration depends entirely on the mother plant it has derived from. So, do not assume fenestration right after hearing Obliqua.
Additionally, use terracotta pots as flowerpots for Monstera Obliqua.