Hoya flagellata comes from Thailand and the flowers are so similar to Hoya caudata that many collectors think that it may just be another clone of caudata. H. flagellata was described in 1940. The leaves are long and narrow and get almost totally red in good light. The flowers are around .5â€³ across (1.2 cm) and are covered with hairs. The corona is red with long â€œhairs sticking out of the center.
I wish I could tell you the secret to growing this Hoya, but truth be told I have been able to grow two peduncles and flower the plant, but have been unable to get the plant to grow even one leaf. I received it as a cutting in April of 2015, and I could not tell months later whether it was dead, or alive because it just sat doing absolutely nothing. Finally in March of 2016 it grew its first peduncle and flowered shortly thereafter. It then rapidly grew a second peduncle. I suspect that a very warm and humid terrarium might suit this plant best.