Fabulous foliage throughout the year is a hallmark of this cultivar. Bright, indirect light or bright shade outdoors best brings out the intensely-purpled and silver-flecked leaves.
Hoya pubicalyx is an endemic species of the Philippines.
Several references also list this cultivar as synonymous with the H. pubicalyx cultivar ‘Chimera’.
Inflorescence image is not from my specimen, but from the following site:
“Hoya pubicalyx cv. Royal Hawaiian Purple” image by Luiza Ferreira. Available under a CC-BY-SA Creative Commons Attribution License. llifle.com 14 Nov. 2005. Accessed 18 Sept. 2020 http://www.llifle.com/Encyclopedia/SUCCULENTS/Family/Asclepiadaceae/30642/Hoya_pubicalyx_cv._Royal_Hawaiian_Purple