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Hoya thomsonii

J. D. Hooker

Published in The Flora of British India 4 61 (1883) by J. D. Hooker. Hoya thomsonii originates from India and the Himalayas. It was collected J. D. Hooker and T. Thomson in Khasia Mountains. Hoya thomsonii is named for one of the collectors T. Thomson. In the publication this species is named Hoya thomsoni, which is wrong according to the nomenclature. It shall therefore automatically be corrected.
 

Plant
Leaves: dark green, speckled, hairy, 6-10 cm long, 3-4 cm wide
Growth habit: hanging & climbing
Flowers
No. in a cluster: 10-20
Size: 2 cm
Colour: crystal white
Form: campanulate
Scent: spicy
Nectar: yes
Lastingness: ~ 3 weeks

I grow my Hoya thomsonii hanging, but it can also be grown supported on a trellis. The leaves and the branches are covered with hair. The leaves are also silver speckled. Some say it is tricky to grow, but I've had no problems with it. I grow it cooler (in my garden room) in a window facing south. I think the trick is to keep the soil evenly moist.

According to others the umbels can contain 20-30 flowers. I haven't been that lucky yet. It flowers mainly in winter (November-December) and when it does it can be a stunning sight as it flowers with so many umbels at the same time. The colour of the hairy flowers is crystal white and the scent is spicy. When there is more than one umbel the spicy scent can be overwhelming. The flowers last about three weeks.