What is the coldest that a hoya can tolerate. I was contemplating planting some out side but I thought I would just check first to see if they could handle our winters here. I have lots of cuttings so it won't be a great lose but why waste them if they are just going to up and die on me.
Temperatue limits
Hey Jan - I have been told that H. carnosa lived thru a freeze..one night. But the roots didn't freeze so it came back. H. carnosa, I have been told, could go down to 40deg. for a brief period if it warmed up later.
Some rather prefer to be cool...Like H. globulosa, H. polyneura are two that come to my mind...but my mind is limited...there may be more.
carol
What I have been reading it depends on the species. At the Huntington Gardens they don't let the greenhouse that I keep the Hoya, go down below 55F The Tropical house I will need to ask, that is where I start all of them, that is kept considerable higher, and with high constant humidity. I must have about 200 of them in there, at home they don't seem to mind it going up to 80F then the fan come on, which lowers the humidity. I do have problems keeping the humidity up. Some won't flower unless is cooler than the rest, and I have noticed, here anyway , they seem to flower only a certain time of the year, and the rest of you all have the same species in flower at that time as well. That is why I don't post what is in flower. My Burtonii was in flower last Tuesday night, I was giving a program, and everyone came up to find out what was in flower. Small light rose colored small cluster of flowers, corrola bends back, making it appear like a button, the crown yellow and a red dot in the middle, Norma
Some more I've heard to to be exposed to cooler temps in their natural habitat, usually they come from elevated mountain forests:
H. fungii, H. serpens, H. shepherdii (longifolia), H. pulchella, H. siamica, H. solaniflora, H. villosa, H. microphylla, H. lanceolata
OH, good info. Milan. Didn't know that. Makes sense with H. fungii being a type of H. carnosa.
That is the reason why where they came from is so important in all species. With your information Milan and Carol I need to move a few of my plants out. No wonder they weren't doing that good, they don't like the heat. Now straighten me out of this. H. shepherdii one species, H. longifolia a different species or just a subspecies or variety, please. I still don't think mine are getting enough light to flower, but if I put them out I'm afraid of burning them. That is the reason our curator asked me for elevations, now I know why. Good informatioin, I copied it all down. Norma
Wow! Great info you guys. Thanks. I'm going to give it a try. We do get some cooler temps here even in the desert but I think that if I mulch them well enough they should be okay. It's going to be my experiment.
Norma...from what I know, H. shepherdii and H. longifolia are two seperate species. There seems to be confusion because longifolia means 'long leaf' and H. shepherdii has a long leaf so...confusion. But they are separate.
I put my H. shepherdii outside in the shade and it does not stop blooming. The bright light it sees must be enough!