Hoya rumphii Blume

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 Flower.  Click for enlargement

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A small Hoya for the hanging basket, type species for section Acanthostemma.

To me Hoya rumphii has been a quite slow growing species. It's a bit tricky to cultivate as it doesn't like to run dry nor being moist. The roots easily die making it nessecary to rmake a fresh start. I bought my specimen in 2003 and and it bloomed the first time 2011. Every now and then I've had to start all over so no plant has gotten more than about a year before being renewed.

I've read that some consider this species to be synonymous with Hoya sp. Bogor. I don't see how that is possible as the two are completely different and belong to different sections. Hoya sp. Bogor is (possibly) a form of Hoya verticillata belonging to the section Sperlingia. Other Hoyas belonging to the section Acanthostemma is for example Hoya bilobata and Hoya loheri.

 Variations in Hoya
Light, but no sunlight

Likes light but should not be exposed to sunlight. A protected window facing west is good.

Slightly moist

Tolerates some drought but should not be allowed to run completely dry.

Intermediate

Intermediate species. Tolerates short exposure to temperatures no less than 10°C. Best grown in a regular room temperature of 20-25°C.

Flower size:

Leaf size:

Growth: Hanging

Scent: Sweet n' sour

Section: Acanthostemma

Origin: Indonesia (Moluccas)

Author: Blume

Publication: Bijdr. 1065. (1826)

Herbarium:

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