Hoya deykeae – Heart-Shaped Foliage and Creamy Yellow Blooms
Botanical name: Hoya deykeae R.J.V. Donkelaar (1992)
Hoya deykeae is a rare Sumatran epiphyte named in honor of Deyke van Donkelaar-Jannink, co-discoverer of the species in 1990. Known for its heart-shaped, slightly cupped foliage with contrasting green veins and soft, creamy-yellow flowers, this compact vining species brings a gentle, understated beauty to indoor spaces. With the right care, it rewards growers with fragrant umbels of peach-centered blooms and lush, cascading foliage.
Why Hoya deykeae Is More Than Just Another Heart-Leaf Hoya

 
Leaf Shape: Distinctive heart-shaped leaves, slightly cupped with a soft leathery texture and matte finish.
 
Venation: Dark green veins clearly visible against the pale green leaf surface.
 
Growth Habit: Thin, wiry stems that climb or trail naturally. Works beautifully in hanging pots, kokedama, or trained on a support.
 
Flowers: Clusters of creamy yellow, star-shaped flowers with peach centers. Mildly fragrant. Blooms in bright indoor conditions with a stable 12+ hour photoperiod.

Where Hoya deykeae Comes From – Habitat & Adaptations

 
Native Range: Tropical lowland forests of Sumatra, Indonesia.
 
Natural Growth Form: Epiphytic, growing on tree trunks and branches in filtered light with high humidity.
 
Environmental Needs: Consistent warmth (18 – 24 °C), moisture, and bright, indirect light.

Hoya deykeae Care Indoors – What It Actually Needs

 
Light: Bright, indirect light year-round. Direct sun can scorch; too little light limits flowering.
 
Watering: Water deeply when the top 2 – 3 cm of substrate are dry. Always allow excess water to drain.
 
Humidity: Thrives with 60 – 80% humidity. Avoid misting directly — instead use a pebble tray, humidifier, or plant clustering.
 
Temperature: Keep above 18 °C. Avoid cold drafts or sudden temp drops.
 
Soil: Use a breathable, peat-free mix with coco coir, orchid bark, and perlite.
 
Fertilizer: Apply balanced or potassium-rich liquid fertilizer every 4 – 6 weeks when actively growing under sufficient light.
 
Support: Can be trained around a hoop, moss pole, or small trellis to shape growth and encourage flowering.
 
Repotting: Every 2 – 3 years. Prefers to be slightly root-bound. Use containers with excellent drainage.

Propagation of Hoya deykeae – Step-by-Step
Take 10 – 15 cm stem cuttings with at least one node. Root in water, moist sphagnum moss, or a loose mix under high humidity. Ideal rooting temps: 20 – 24 °C. Once rooted, pot in airy substrate and gradually reduce humidity.
Common Issues and What They Mean

 
Yellowing Leaves: Likely overwatering or poor drainage. Let soil dry slightly and reduce watering volume.
 
Bud Drop: Caused by unstable humidity, cold shock, or dry substrate. Keep conditions steady once buds form.
 
Pests: May attract spider mites or mealybugs in dry conditions. Treat early with insecticidal soap or neem oil and improve airflow.

Extra Growing Tips to Help Hoya deykeae Flourish

 
Leaf Care: Clean gently with a microfiber cloth to remove dust and support photosynthesis.
 
Positioning: Place away from heaters or air conditioning vents. Grouping with other tropical plants can boost ambient humidity.
 
Encourage Blooms: Avoid moving the plant once buds form. Provide stable light and consistent care to trigger flowering.

Is Hoya deykeae Pet-Safe?
Yes — like other Hoyas, Hoya deykeae is non-toxic to cats and dogs. However, keep out of reach if pets like to chew trailing vines.
Don’t Confuse Hoya deykeae with Similar Species
Although its heart-shaped leaves resemble Hoya kerrii, deykeae has thinner, more veined foliage and a much finer, cascading growth habit. It also differs from Hoya obovata in leaf shape and texture.
Frequently Asked Questions About Hoya deykeae

 
Can I grow Hoya deykeae in a terrarium?
Yes, as long as there’s ventilation and indirect light. High humidity suits it well.
 
Does Hoya deykeae bloom easily?
It may take time. Stable humidity, consistent light (12h+), and tight root space increase the chance of blooms.
 
What’s the best pot for this species?
Use a breathable pot (terracotta or nursery plastic) with multiple drainage holes.

Ready to try something different from the usual heart-shaped Hoyas? Hoya deykeae offers subtle color, graceful form, and compact vining charm — a perfect fit for collectors and indoor jungle lovers. Order now to add this rare species to your space.