Hoya deykeae

Hoya Deykeae

Hoya deykeae is a unique hoya that is native to Sumatra in South Asia. Hoya deykeae is noted for its unique foliage. The leaves are big and heart-shaped, with a dark green coloration and an almost black venation pattern. As houseplants, these hoyas rarely bloom. However, when they bloom, they have a strong aroma of lime that permeates throughout. The flowers are a buttery yellow with pale pink coronas.

H. deykeae, like all other Hoya species, produces its flowers from spurs. These emerge from the axils of the leaves and the stem; although flowers might not be formed when the spurs first appear, buds will eventually form at the tips of the spurs over time.

Hoya deykeae was originally intended to be named as Hoya deykeae by botanist Ted Green in 2000. The sap is toxic to animals; it might not be the ideal choice for a home with young children or pets.


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Scientific name: Hoya deykeae

Common names: Wax plant, porcelain flower, waxvine

Origin: Sumatra

Flower colour: Buttery yellow with pale pink coronas

Genus: Hoya

Family: Apocynaceae (Asclepiadaceae)

Kingdom: Plantae

Type:Flowering vine

How to care for

Hoya deykeae

Hoya deykeae prefers bright, indirect light. Exposure to morning and evening light is alright, but it must be protected from the scorching noon sun or the leaves will turn yellow and die. If you want your plants to thrive, you need to use a soil mix that drains effectively and repot them at least once a year into a coarse, exceptionally draining substrate.


  • Bright, indirect light 
  • Temperature range 60-95 degrees F
  • Moderate to high humidity requirements
  • Loose, well-aerated soil 
  • Less watering

Hoya deykeae Detail

Light Requirements:

  • Hoya deykeae does best in filtered sunlight. Since "dappled shade" typically refers to light that is filtered via trees, recreating this effect inside is more challenging.
  • The ideal lighting conditions are 30-50% indirect sunshine and the rest in the shade. If you don't want your plant's leaves to get scorched, make sure to shade it in the aftern
  • Although Hoya deykeae prefers indirect light, the plant does need full sunlight to bloom. Flowers blossom from what are called spurs, which develop from the plant in response to either indirect or full morning sun and store enough energy to grow and bloom.
  • A few hours of early morning or evening sun are enough for Hoya deykeae.

Temperature Requirements:

  • Since hoyas are native to tropical climates, warm temperatures are ideally suited for their growth. If you live in a temperate zone, you can easily cultivate the plant. However, colder regions have different considerations. 
  • Hoya deykeae grows well in a temperature range of 60-95 degrees F. Any lower or higher than this causes plant stress and may cause irreversible damage.
  • Use heating pads, or keep your plant in the bathroom or the kitchen, since these areas are the most warm in a house. 
  • Additionally, avoid areas with drafts and sudden temperature drops.

Watering Requirements:

  • As with other hoyas, Hoya deykeae does well on a limited watering schedule. What may seem as a normal amount of water can easily disagree with the plant, so be careful while watering. 
  • Allow the top two inches of soil to dry out before watering your hoya. You can ideally water the plant once the soil is dry. 
  • To prevent excessive moisture build-up, always select pots with holes to allow the extra water to seep out.
  • If the leaves start turning yellow or droopy, this is likely due to over-watering. You might have to experiment a few times to get watering down.

Soil Requirements:

  • Hoya deykeae thrives in sandy and loamy soils with good drainage.
  • Because your Hoya deykeae is prone to overwatering, getting the potting mix just right is critical. Generic commercial mixes retain too much water, causing root rot.
  • It does, however, require adequate moisture for healthy foliage. Getting the right balance is difficult, but any of the following are excellent options:
  • This plant will do well with a mix of perlite, bark, and indoor plant potting mix or just indoor plant potting mix and lots of perlites.
  • Or Combine 1 part orchid potting mix, 1 part perlite, and 1 part sand.

Fertilizing Requirements:

  • Overfertilizing it may harm the plant since its a light feeder. Use a general houseplant fertilizer diluted to half strength once a month during the growing season to fertilize this plant (spring and summer).
  • Using a balanced liquid fertilizer once a month at half strength during the growing season  is sufficient.
  • When you see flowers developing, switch to a high-phosphorous fertilizer to encourage flowering.
  • Do not fertilize  in the fall or winter. This is when your plant is dormant or growing slowly. Your plant will suffer if you use too much fertilizer.
  • If you notice a white crust forming on the soil’s surface, this could be due to salt buildup from overfertilization. Flush your plant with room-temperature water in this case.


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