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Hoya Rebecca: Ultimate Grow & Care Guide

Growing many Hoya plants is not new, thanks to the rising phenomenon among plant lovers who call themselves “Hoya Hoarders.”

One of the unique choices among them is Hoya Rebecca, a climber with long vining stems often grown in the hanging baskets and sometimes on the trellis.

These easy-to-care plants provide magnificent flowers that spread intoxicating fragrances around your house, providing you fulfill its primary care.

In general, Hoya Rebecca is a fairly easy-to-care plant that needs a lot of indirect sunlight with temperatures between 60-95°F, 55-75% humidity, mild plant food, and weekly watering in the growing season to bloom signature red leaves and flowers.

Hoya Rebecca
Hoya Rebecca (Source: THHoya)

Remember, it is an epiphyte with airy roots that hates excessively moist conditions.

Read on to find out how to best care for your Hoya Rebecca so it stays healthy and thriving.

Overview of Hoya Rebecca

Hoya Rebecca is a slow-growing vining species from Asia’s tropical and sub-tropical regions.

Known for their waxy leaves and star-shaped blossoms, these plants will dominate your home decor with their sweet fragrance and royal appearance.

No wonder many gardeners choose to horde all these plants and brandish them on Instagram under the hashtag #Hoyahorder.

However, Hoya Rebecca is not your regular Hoya plant because it is said to be a cultivar of Hoya Lacunosa and Hoya Obscura, both native to south-east Asia.

Hoya Obscura
Hoya Obscura (Source: NPark.gov)

It was named after the famous botanist Thomas Hoy.

With a closer inspection, you could tell that Hoya Rebecca resembles the mother plant Hoya Obscura and its sister Hoya Sunrise, more than Hoya lacunosa.

Here is a table highlighting the basic information about Hoya Rebecca.

IndicatorIdentity
Scientific NameHoya cv 'Rebecca'
Common NameRebecca
NativeTropical and sub-tropical Asia
FamilyApocynaceae
Growth ZoneUSDA Hardiness Zones 10-11
Plant TypeVining epiphytic plant
Growth SizeGrows 6-8 feet long
Grown ForStar-shaped flowers and red toned foliage
Foliage TypeRound-leaved with trailing foliage
Leaf size2.5-6 cm long, 1-2 cm wide
FloweringStar-shaped white flowers with pink centre
Flowering SeasonLate summer, or early fall.
FruitingTwin narrow pods containing numerous silky seeds.
AvailabilitySold through rare plant sellers and a few retailers
ToxicityNon toxic in general but eating sap can cause problems

When provided with significant light and warm temperature, its leaves will retain a lovely red color until stasis (end of the maturity).

As it is a vining plant, gardeners often choose to hang them in a basket, with only a handful planting it using trellis.

Nonetheless, Hoya Rebecca will live forever, provided with the optimal growing condition.

Growing flowers can become challenging, especially when the lighting, fertilization, and temperature are not optimal.

Therefore, refer to the complete guide below to assess your Hoya’s condition and discover how to make them blossom.

Hoya Rebecca vs. Hoya Sunrise

If you have grown Hoya Sunrise, you would know that these plants look similar.

In fact, both Hoyas are cultivars derived from the Hoya Obscura and Hoya Lacunosa, giving them similar appearances and behavior.

Hoya Rebecca comes from Hoya Lacunosa ‘Langkawi Island’ with the Hoya Obscura, while Hoya sunrise comes from Hoya Lacunos var. pallidiflora and Hoya obscura.

Hoya Sunrise Vs Hoya Rebecca
Hoya Sunrise Vs. Hoya Rebecca

However, do not be confused between the two because they are not the same.

Here are a few differences between the two plants to help you find and buy the correct plant.

Hoya RebeccaHoya Sunrise
It has light green colored leaves with reddish shade underneathIt has dark green leaves with only red and purplish flecks
It has thin leavesIt has thicker leaves
The flowers are bright pink with a yellowish centerThe flowers are cream-colored and yellowish in center
The leaf size is comparatively smallThe leaf size is quite large
It will grow to a height of 6-8 feetIt will grow to a height of 9-10 feet

Read more about the Complete care for Hoya Sunrise.

Where to Buy Hoya Rebecca?

You can always ask a friend or fellow plant lover to give you healthy cutting for propagation.

Otherwise, consider owning a new plant by ordering online.

Do not worry; young Hoya Rebeccas are sold at very affordable prices, usually from $20-$30.

Let us look at a few selected retailers and rare plant sellers specializing in Hoya Rebecca.

Buying OptionsDelivery
EtsyDelivery within 5-6 days
Plant the StudioDelivery within 5-6 days
Thhoya.comDelivery within 5-6 days
Amthai OrchidsDelivery within 7-15 days
Tropics At HomeDelivery within 7-14 days

Hoya Rebecca: Ultimate Grow & Care Guide for Beginners

Hoyas are one of the easiest species to take care of, but be wary about their basic requirements.

The pan-tropical plants require a conducive growing environment at home with appropriate lighting, temperature, and humidity.

A sick-looking plant with wilted and yellowing foliage or stunted growth often indicates wrong growing conditions.

Therefore, you must be attentive to many tell-tale signs to determine whether you are over or underdoing the care.

ParametersSuitable Conditions
Lighting6 - 8 hours of Bright dappled Sunlight in spring and summer

At least 14 hours of darkness to induce flowering
WateringOnce a week or when the top 2 inches of soil dries out

Sparingly in fall and winter
Temperature60 - 95°F (15-35°C)

55°F at night and nothing less than 50°F
Humidity55-75%
Potting Soil MixWell draining and loamy soil with good aeration
Soil pHAcidic (6.0 - 7.0)
FertilizationOnce a month during spring and Summer

Cut back in winter
PruningOnce in a year or when required
Prune dead or damaged foliage
RepottingOnce a year or every two years depending on root-bound condition
PropagationStem Cutting and Air-Layering

1. Bright Indirect Light and Warm Location

Your Hoya Rebecca will thrive best in a warm location with bright, indirect sunlight.

By indirect sunlight, we meant the sunlight passed through the glass or reflected from a surface like a wall.

Most gardeners admit that their Hoya Rebecca grew well when provided 6-8 hours of sunlight daily during the growing season (spring and summer).

Bright, indirect sunlight
An illustration of the bright, indirect sunlight (Source: Mr. Houseplant YouTube)

However, as a flowering plant, it equally needs dark time to induce flowering, especially in summer.

Therefore, provide at least 6 hours of sunlight with 14-16 hours of darkness daily.

Note: Providing ample bright light during the day will help produce the signature reddish tone of the leaves.

Similarly, the plant location must be warm, close to the window, patio, or kitchen.

Tips to Provide Adequate Bright Light

  • The east-facing window is considered the best location for the plant.
  • If you feel the lighting is insufficient, consider moving them to the south-facing window but keep them at least 4-5 feet away from the direct sunlight.
  • Use drapes or blinds on the window to offset the light intensity, especially in high summer.
  • Rotate the plant in the same place every few weeks to achieve even sunlight distribution.
  • When natural lighting gets minimal, move the plant indoors under LED grow light for at least 10 hours during fall or winter.

When using an artificial grow light, consider using a full-spectrum lamp that provides an even amount of red, blue, and yellow color spectrum required for foliage and flower growth.

The absence of bright light will affect the plant’s growth, as will extreme lighting.

Low Light ProblemsLight Saturation Problems
It causes stunted, leggy, and dull growth.It causes a high transpiration rate, and leaves start to curl.
Leaves appear yellow, disclosed, and smaller in size.Extreme heat breakdowns the chlorophyll, so the leaves appear pale or bleached.
Low chlorophyll leads to less pigmented leaves.Burning of leaf and leaf scorch.

Solutions

  • Move your plant from a low-light area to a brightly lit location to compensate for missed sun time.
  • For burned or scorched leaves, move the plant away from the light source to shade and wait until it revives.
  • Mist the leaves occasionally in summer when the temperature rises above 95 degrees Fahrenheit.
  • Make sure you properly water and feed plants suffering from sunscald while they are trying to recover.

2. Weekly Watering

You may feel tempted to water your Hoya plant but refrain from doing that because it does not tolerate overwatering.

Hoya Rebecca has a minimal watering need, where you can provide 600 ml of water to a 5″ pot once a week in the growing season.

Weekly watering will maintain a steady supply of oxygen and nutrients to the epiphytic roots.

Watering the plant
Watering the plant (Source: Tenor)

Cut down the watering to 30-40% in fall and winter when the plant goes into dormancy.

Beginners are more likely to overwater their Hoyas in the growing season; hence, they often complain of a sick-looking plant.

The water-saturated Hoya Rebecca is more likely to invite problems such as discolored leaves and fungal infections.

Tips to Water Hoya Rebecca Properly

  • Allow the potting mix to dry about 50% or the 2-3 inches of topsoil between watering.
  • Insert your finger to check the soil moisture. Otherwise, use a soil moisture meter to determine the exact moisture level.
  • Anything above ‘6’ indicates excessively moist soil, and fewer than ‘3’ means dry soil.
  • Water your plant in the morning and pour it directly over the soil to allow the water to reach the roots.
  • Ensure to use distilled or rainwater at all times. Otherwise, let the chlorinated water sit idle for 24 hours before using.
  • Use tepid water as Hoyas cannot withstand hot or cold water temperatures.

Voila! You have mastered the watering technique for your Hoya Rebecca, but not so fast!

You should assess the plant regularly for the signs of water stress.

Overwatered HoyaUnderwatered Hoya
Yellow patches on the leavesYellowing of leaf edges
Browning or darkening leavesWilted and crispy leaves
Lower stem decayLoss of reddish tone
Dark-colored and smelly potting mixDry or crumbled soil
Root rots (Severe condition)Hard to touch stems

Solutions

  • Cut back on watering for water-saturated plants and move it to a warm location with bright light.
  • If the plant fails to revive within a few days, consider uprooting it to check for root rot signs.
  • Discard the severely rotted plant with dark, mushy and smelly roots.
  • Otherwise, trim the affected part and apply fungicide before repotting it in a fresh soil mix.
  • Consider deep watering the dry plant and misting the leaves.
  • Otherwise, submerge the pot in a tub filled with water.

3. Fairly High Temperature

Hoya Rebecca relatively thrives in reasonably warm temperatures due to its native tropical origin.

And, it does not do well in a cold climate because it is not a cold-hardy plant.

Provide your Hoya Rebecca with an ideal temperature range between 65-72°F (15-22°C) during the day and nothing less than 55°F (12°C) at night.

You would notice quite a slowdown in its growth and drippy leaves when the temperature goes below 50°F.

They are best grown in USDA zones 10-11 (minimum 40°F) with longer spring and summer days.

USDA Hardiness zone diagram
USDA Hardiness zone diagram (Source: Wikimedia)

You need not worry about high temperatures because Hoya Rebecca can withstand slight drought conditions up to 95°F.

Check for tell-tale signs of leaf discoloration, falling flower buds, and droopy leaves.

Tips to Maintain Ideal Temperature

  • Place them in a warm place in the sunny location of your house, south-facing window, door, or patio.
  • Avoid placing them close to the air conditioner or heater to avoid heat stress.
  • Move the plant inside under LED grow light in fall and winter to avoid winter stress.
  • Using a frost blanket or plastic insulation may work to preserve the warmth. Alternatively, place a heating pad underneath the plant’s container.
  • Add a layer of pine straw to insulate the soil.

Note: Remember the temperature below 54°F for about an hour or two will damage the plant irreversibly.

4. Moderate to High Humidity

Hoya Rebecca is a humidity-loving plant but does not often enjoy being misted.

Hoya Rebecca can withstand average humid conditions but thrives in 55-75% humidity to maintain healthy-looking leaves.

The low humidity will dry out the plant, leading to the leaves’ transpiration or water loss.

Effect of Humidity on Plant's Humidity
Effect of Humidity on Plant’s Humidity (Source: Wikimedia)

The plant absorbs most water through its airy roots, subsequently supplying it to the leaves.

Therefore, frequently misting the plant may have severe effects as it can lead to excess moisture.

You must ensure that your plant’s soil drains well, so that excess humidity does not lead to root rot.

Keep your eyes out for tell-tale problems of inappropriate humidity levels.

Signs of Low Humidity Signs of High Humidity
Shriveling of leaves and loss of reddish toneMold or mildew growth on the plant
Leaves turning brown and crispyInfections with fungi
Wilting of leaves and stalksPatches of grey mold
Yellow leaves may begin to fallGrowth of mold on the pot and potting soil as well

Tips to Maintain Ideal Humidity Level

  • You can naturally boost the high humidity requirement by grouping all the houseplants in a room, especially in summer.
  • If the humidity level still seems low, add a room humidifier to boost the levels artificially.
  • Alternatively, you can place the plant pot on a pebble tray filled with water to maintain the air moisture.
  • Keep a hygrometer handy to check the humidity level before it rises to a dangerous level.
  • Keep misting to summers and sometimes spring when the air gets dry.
  • Allow proper room ventilation to let out excess moisture through air circulation.

5. Loamy and Aerated Soil Mix

The Hoya Rebecca does best in well-draining soil that contains lots of organic and inorganic matter and healthy soil microbes.

The aerated soil condition allows its airy roots to trap oxygen and nutrients without difficulty.

Use a well-draining substrate containing organic and inorganic matters like coco coir, vermiculite, sand, and a handful of perlite.

The advantage of using this mix is that it allows the excess water to drain out, keeping the root dry and healthy.

Accumulating stagnant water is the leading cause of root rot and other plant problems, usually with tightly-packed soil.

Here is a homemade recipe for preparing an ideal Hoya potting mix.

Recipe for Home-Made Potting Mix

  • Combine one part coco coir, one part vermiculite, some sand to provide support, and a handful of perlite
  • Mix one part Orchid mix, one part perlite, half part peat moss, and one-third part of organic compost

Using organic matters will help naturally retain the slightly acidic nature of the soil.

Voila! Your homemade potting mix is ready.

If you are not up for toiling, here are a commercial mix options.

Soil Mix Image Features
Black Gold All Purpose SoilA multi purpose, nutrient rich mix that's ideal for most of the plants
Miracle-Gro Indoor Potting MixContains coco coir, which holds and releases water and helps soil easily get wet again
FoxFarm Ocean Forest Potting Mix Ocean Forest has a light, aerated texture that's perfect for indoor and outdoor plants

6. Monthly Fertilization

Hoya Rebecca is not a compulsive feeder; it gets its energy from sunlight and organic soil mix.

You can consider changing the soil regularly to help provide the plant with fresh nutrients.

Feed your Hoya Rebecca with the amount of a low concentration liquid-plant food such as 2-1-2 or 3-1-2 NPK ratio.

Provide a balanced fertilizer with a low NPK ratio to avoid chemical burn and stalled growth. Similarly, fertilization increases if the plant lacks proper structure and color.

Keep your eye out for tell-tale problems of inappropriate fertilization.

Signs of Under-fertilizationSigns of Over-fertilization
Faint and pale foliageLeaves start turning brown
Frail stemWithering of lower leaves
Yellowing of leavesStem starts turning yellow and the leaves start wilting
Falling off of leavesFertilizer crusts and salt buildup on the soil surface and roots
Slow plant growth or stunted growthLeaf tips and margins start to turn brown

How to Treat Overfertilized Plant?

A Hoya plant is more likely to be overfertilized, and here is how you can solve it.

  • Run the plant under the sink to flush out salts and let it dry out. Repeat the process 2-3 times.
  • Immediately cut back on fertilization until the plant seems to revive.
  • If the soil feels drier and compact, consider transplanting to a fresh potting mix.

Tips to Properly Fertilize Hoya Rebecca

  • A fertilizer with a slightly higher amount of nitrogen will help boost leaf growth and color applied monthly in the growing season.
  • If you are not witnessing new blossoms, you can switch to a 5-10-3 NPK fertilizer with higher phosphorus to boost inflorescence.
  • However, use it two months before the plant’s average blooming time.
  • When using a liquid fertilizer, consider diluting it to 1/3 strength by mixing it with water.
  • Otherwise, you can resort to slow-release Osmocote pellets once every three months.

Here are a few recommendations for commercial plant fertilizers

Miracle Gro Liquid Plant Food
Miracle Gro Liquid Plant Food (Source: Amazon)

Alternatively, you can resort to using homemade fertilizer rich in organic mulch and healthy microbes.

Use eggshells, vegetable byproducts, garlic and onion skin, chicken and fish bones, or coffee grounds regularly during the growing season.

7. Repotting of Hoya Rebecca

You can repot your Hoya Rebecca to once a year, usually in early spring, to provide a fresh potting mix.

The exotic Hoya Rebecca plant doubles in size yearly; hence it is a good idea to repot them regularly.

Hanging plant repotting process
Hanging plant repotting process

However, the plant does well in a slightly root-bound condition to produce bushier leaves and blossoms.

Therefore, you can keep the repotting once every two years, usually in late spring or summer.

Signs to Repot Hoya Rebecca

Your Hoya Rebecca will give tell-tale signs when it gets severely root-bound.

  • The roots will begin coming out of the drainage holes.
  • The leaves will begin yellowing, dropping, and limping.
  • The plant growth will be restricted.

Steps to Repot Hoya Rebecca 

Here is a step-by-step guide to repotting your Hoya Rebecca.

Step 1: Choose an Appropriate Container
  • Choose a container 2-3” bigger than the previous container.
  • Choose the pot with multiple drainage holes underneath for proper drainage.
  • A plastic pot may work very well as it is light; otherwise, you can stick to clay pots to improve moisture control.
ContainerSpecification
Classic Planter, 8" (Plastic)They are durable and lightweight. The drainage holes lie at the bottom
LE TAUCI Ceramic Plant Pots (Ceramic)4+5+6 inch, Set of 3, Planters with holes in the bottom
Plastic Planter, HOMENOTE (Plastic)Comes in five different sizes 7/6/5.5/4.8/4.5 Inch
Step 2: Prepare the Soil Mix
  • Choose the correct potting mix from the soil mix options given above.
  • Remember to add a bit of sulfur or aluminum sulfate to lower the pH level of the mix.
Pot filled with soil besides plant
A pot filled with soil besides plant (Source: Instagram)
Step 3: Repot the Plant
  • Water your plant a few hours before repotting.
  • Tip the container on its side and grab the plant using lower stems to pull it out.
  • Wash the root with water to check for visible signs of root rot problem.
  • Trim the affected part and apply fungicide before repotting.
  • Fill the new container with 1/3 potting mix and insert the plant with roots facing downwards.
  • Fill the rest of the pot, leaving an inch of space at the top.
  • Water it thoroughly and place it in a warm location with ample indirect sunlight.

Note: Give your plant some time to establish its roots and not be swayed away by a few wilting leaves.

Hoya Rebecca Growth Rate, Foliage and Flower

Hoya Rebecca is a beautiful plant that grows exponentially throughout the growing season.

You would know the positive changes in your plant through its vining stems, leaf size and color, and blossoms.

A mature Hoya Rebecca will retain a size of 1-2 meters (6-8 feet) when grown indoors, but it may grow up to 20 feet in length in its natural setting.

Hoya Rebecca
Hoya Rebecca (Source: Etsy)

Growing them as the hanging plant is the best way to attain a great height and supply essential nutrients to their stem ends.

Foliage and Flower

Hoya Rebecca boasts rich waxy-looking leaves with waxy green color with red undersides that are 2.5-6 cm long and 1-2 cm wide.

As they mature, the leaves will gradually produce a red tone from bright to light.

The inflorescence consists of multiple flowers packed into a cluster or umbel and covered in tiny hairs giving it a frizzy appearance.

Hoya Rebecca flowering
Hoya Rebecca flowering (Source: Unsplash)

The umbels will have 10-25 small star-shaped flowers. The color would differ from bright pink to light yellow, emitting a heavy scent.

Unlike other plants, Hoya Rebecca flowers from spurs. Each season the flower comes from this spur; hence remember not to damage them.

They blossom 2-4 times a year with a duration of 1-3 weeks.

Pruning Hoya Rebecca

Pruning the old-growth, degraded, and brown leaves and the leggy stem is essential to keep the plant looking healthy.

Keep pruning to spring and summer and remove the parts that are dying or already dead to encourage new back-budding.

Note: Ensure to use sterile pruning shear to avoid contamination and avoid cutting off more than 20% of the plant at a time.

Toxicity of Hoya Rebecca

Hoya Rebecca is not toxic to humans or pets; consuming the plant sap may irritate your bowel syndrome.

Therefore, you need not worry about accidental plant poisoning. However, keep it away from the reach of small children and pets to avoid other problems.

Swallowing the Hoya leaf or flower can induce vomiting and gagging effects.

Some standard techniques to keep it out of their reach include.

  • You can grow the plant in the hanging baskets up in the ceiling.
  • Keep them in an isolated room.
  • Sprinkle some cayenne pepper or diluted lemon water around the plant to repel animals.

Methods to Propagate Hoya Rebecca

Hoya Rebecca is one of the easiest plants to propagate to reproduce multiple beautiful plants.

You can quickly propagate Hoya Rebecca using the cutting and air layering method at home, which produces impressive results.

However, be wary about the optimal time to propagate this plant to ensure the best results.

They are best propagated in spring or summer when the roots and stems are actively growing.

1. Propagating via Stem Cutting

Propagating through healthy stem cutting is one of the most popular choices because it takes the least effort and gives optimum results almost every time.

It is also a practical approach to propagating multiple plants simultaneously.

Here is the step-by-step guide to propagating stem cutting.

Step 1: Prepare the Cuttings

  • Determine the healthy-looking stem with bushier waxy leaves.
  • Cut the stem with multiple nodes just below the leaf node, about an inch. You can obtain as many branches as you like.
  • Otherwise, cut an oversized stem and divide the strand into multiple cutting measuring 3-4 inches and having at least two nodes and a few leaves.
  • Leave the cutting to allow the cut end to produce callous.
Stem node diagram
Stem node diagram with airy roots (Source: Wikimedia.org)

Step 2: Rooting the Cuttings

You can propagate it in water or soil mix

Rotting in Water
  • For water propagation, get a clear glass filled with tepid water.
  • Add a few drops of rooting hormone and place the cutting with leaves hanging outside.
  • Change the water every 4-5 days to avoid fungal growth.
  • Continue the process for 3-4 weeks until the cutting produces 1-2 inch long roots.
Rotting in Soil

Similarly, for propagation in the soil mix, start with preparing coco coir, perlite, and vermiculite mix and add it to a 2-3″ pot.

Propagating Hoya plant
Propagating Hoya Plant (Source: The Plant Farm YouTube)
  • Apply some rooting hormone and fungicide to the cut end before inserting it into the soil.
  • Water it thoroughly and place it in indirect sunlight with ample warm temperature (around 70-75°F).
  • Wait for 3-4 weeks until the cutting has produced an inch-long feeder root.
  • Afterward, you can decide to transplant it to a large pot and continue the regular care.

2. Propagating via Air Layering

Air layering is another method to propagate Hoya Rebecca, but it is rarely carried out due to unfamiliarity with the process.

Here is how to air-layer your plant.

  • Fill a small container with moist peat moss and insert the lower stem with aerial roots and nodes inside it.
  • Ensure the aerial root and nodes are firmly inside the moss mix.
  • Use a stool or chair to support the container. Otherwise, hang it from the ceiling.
  • Sprinkle some water on the moss regularly and provide ample warm temperature to induce new growth.
  • When the layered stem has produced new roots, usually a few weeks, you can separate it from the mother plant using a sterilized pruning shear.
  • Continue caring for the cutting to help it grow evenly.

Common Problems with Hoya Rebecca

Although Hoya Rebecca is a sturdy houseplant, it is still susceptible to many problems.

Improper lighting, temperature, humidity, and soil conditions may cause most problems.

Here are a few lists of problems common with your Hoya Rebecca.

1. Misshapen Leaves

A couple of deformed leaves are common, but a significant amount of distorted leaves in Hoya may indicate problems of overwatering or a combination of high and low temperatures.

Sometimes, moving it to a new environment may also invite this problem.

Provide a warm temperature above 60F and stick to watering the plant once a week in the growing season.

2. Vines Dying Back

Leafless vines are the byproduct of low sunlight. Change the position to allow all parts of the plant to get an even amount of sunlight.

Given time and light, these leafless vines will produce new foliage. Consider trimming it if it fails to produce new growth.

3. Common Plant Pests

Remember, plants under stress are more likely to get infected with pests.

Various pest issues such as mealybug, spider mite, or mite will become common in spring and summer.

Here is the list of plant pests and the problems posed by them.

Common Pests Symptoms
Mealybugs 1. White cotton-like substance appears on leaves.
2. Curling, wilting and falling off foliage
Spider Mites 1. Discoloration and yellowing of leaves.
2. White or yellow spots appears in leaves that feels like sand particle while touching
Aphids 1. Curling and falling off leaves
2. Stunted growth

Solution and Preventive Measures

  • Handpick the visible pests and drop them in a soapy water solution.
  • Mix soap and water in a sprinkler and spray it all over the plant.
  • Alternatively, you can apply Neem oil or horticultural oil to kill the pests.
  • Otherwise, dip a cotton ball in 98% isopropyl alcohol and dab it on the affected parts to kill the pests and their eggs.
  • In case of severe infestation, apply chemical pesticides such as Pyrethrin spray to kill all the pests effectively.

As a preventive measure, lay out a yellow sticky trap around the plant to catch the bugs.

Keep the humidity level in check by inspecting the leaves for signs of pests such as white web underneath the leaves and small holes on the leaves and stem.

Quarantine the infected plant and do not reintroduce it until the problem has been solved.

Related Article: How to Identify Insect Eggs on Leaves and Treat Pest Infestation?

4. Horticultural Diseases

Hoya Rebecca does its best to avoid the onset of diseases, but the wrong growing condition and infected plants can quickly invite diseases.

High humidity, waterlogged problem, and excess moisture are the common culprits of horticultural diseases.

Common Bacterial Blight on Leaf
Common Bacterial Blight on Leaf (Source: Plant Pathology)

You would mostly notice the problems of bacterial blight, Rhizoctonia root rot, and bacterial wilt.

DiseasesCausative AgentsSymptoms
Bacterial BlightXanthomonas axonopodis pv. dieffenbachiaeYellowed (chlorotic), water-soaked lesions in the leaf edges.
Bacterial WiltRalstonia solancearumLeaves veins and stems turn brown and bronze color.
Rhizoctonia Root RotRhizoctonia solaniYoung stems are girdled, water soaked lesions.
Phytophthora and Pythium Root RotPhytophthora nicotianae var. parasitica and Pythium splendensWilting plants, root sloghing, foliage may exhibit black to brown leaf lesions.

Solutions

  • Please dispose of the plant with a severe root rot condition as it is less likely salvageable.
  • For a plant with early root rot, consider trimming the infected roots and applying fungicide before repotting.
  • Apply fungicides containing copper or Benomyl for early signs of fungal and bacterial infection.
  • Alternatively, you can use fungicide containing Chlorothalonil or Agrimycin.

Preventive Measures

  • Use a room humidifier to control the humidity level.
  • Avoid overhead watering and misting the leaves in the evening.
  • Spray your plant with mild fungicide every year to prevent the onset of fungal infections.
  • Quarantine the affected plant and do not reintroduce it before solving the problem

Frequently Asked Questions About Hoya Rebecca

Can I Train Hoya Rebecca to Climb?

You can provide a trellis to your Hoya Rebecca to support climbing upwards.

These vining plants will easily take support of the trellis and begin climbing upwards.

However, these plants are slow growers and may take a while to cling to the trellis.

You can train these plants to cling to different types of support.

Climbing Hoya Rebecca
Climbing Hoya Rebecca (Source: Carousell)

Is Hoya Rebecca Rare?

Hoya Rebecca is not a rare plant. You can easily find them through online plant retailers and some nurseries.

However, these plants are exotic species only available through sellers specializing in exotic plants.

Can I Grow Hoya Rebecca Outside?

Yes, you can grow your Hoya plant outside the house.

The natural bright light and warm temperature will provide a much-needed boost in growth.

However, beware of placing it in direct sunlight. Keep them on the patio or near the wall that provides ample shade.

Can I Grow Hoya Rebecca From Seeds?

Yes, you can grow these beautiful plants from the seeds acquired from Hoya flowers.

Here is a video guide explaining how to propagate Hoya seeds.

Conclusion

Hoya Rebecca makes a magnificent houseplant that will continue to flower and spread fragrance every year, provided with enough care.

Moreover, they are easy to care for plants that do well in normal household conditions.

Treat your exotic plant with ample care and love to witness a lovely-looking plant.

Make sure your Hoya is Problem Free. Find out Hoya Plant Problems and Their Solutions.

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