I really can’t recommend Hoya imperialis strongly enough as an outstanding houseplant.  I have made three time-lapse videos, a five minute video tour of the plant, and taken hundreds of photos of the blooms.  My plant is about to bloom again; it is unfathomable to me as to why.  By all accounts it should not be blooming; it does not receive enough light, doesn’t have enough humidity in the air, sits on a very cold floor, and bloomed profusely only a couple of months ago.  The plant, which is now too big for me to get into the shower to wash the dust off from the leaves consistantly amazes me.  I encourage everyone to try this plant for themselves – A true standout in the tropical plant world!