My hoya krimson queen, which is growing fast and seems to be otherwise healthy, has stopped producing green leaves. It has one vine that is very long and half way up began producing only white leaves. It also has a second vine that just started recently. The second vine has a few green leaves, then one or two that are mostly white with a bit of green, and now the rest are completely white. I don't mind the look, but am concerned that the lack of chlorophyll will kill my plant. Any ideas on (1) why this might be happening? (2) if its a problem? and (3) how to fix it? I will try to post some pictures later to better show the problem. Thanks!
