My remaining specimen of Hoya endauensis was growing in a tent with LED and T-5 lighting.  It would occasionally grow, but spent most of its time sulking.  Then in the spring time of 2016 after a particularly long period of growth (mostly vine with only a couple of leaves), it grew a peduncle and started to bud up.  I was so excited, and then I watered the plant – the next morning the entire peduncle fell off!  I was ready to throw the entire plant into the trash!

What New Growth Looks Like on Hoya endauensis