Emerald,

It's a waiting game, more or less. Sounds like you're doing everything right, so I'd think you could expect them in the not-too-distant future. A couple questions: do you use a bloom fertilizer? An all-purpose fertilizer encourages leaf growth as opposed to flowering. Do you put your Hoyas outside in summer? Sometimes, that can push them into a bloom cycle. But I am very cautious about putting them outside because aphids tend to be a problem around here. Have you tried Eleanor's VF-11? It's a great product that seems to aid in both good growth and flowering. I water it in and use it as a foliar feed, too.

I will also add that some species just seem to take longer to bloom than others. Any carnosa-related species is one that takes a few years (the two you mention fall into this category...) And I see you're in zone 4, which is even more north than I am. More north = less sun, especially in winter. We have a little more challenge in getting our Hoyas to bloom than the Floridians or Californians. I keep almost all mine against the glass in east and west windows, and then I have several I grow in my greenhouse off my kitchen that get good morning sun. And I still have some species that, after years and years, haven't bloomed for me. Cummingiana is one, and an austrailis ssp. is another. That's why I grow Hoyas more for the beauty of the foliage than the flowers - that way, if they DON'T flower, I'm still happy with them!

Denise in Omaha

Aside from everything Denise said, which I completely agree with, hoyas like to be potbound. They bloom and grow faster when kept in the smallest pot possible.

Good luck!
Gabi

thank you for the response..I will try a different fertilizer for flowering..I should have known that....I don't take my hoyas outside for the same reason as you..I did once and had the worst time getting rid of the aphids and I was not going to give up the plant, but I did get rid of them. I too like the leaves the hindu rope is my favorite. I am new to this sight,I love plants of any kind I have over 70 in my house, I think its great..thank you again...Linda minnesota