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Water them liberally in summer and only in amounts to prevent leaves from shriveling in the winter. Hoya plants like well-drained, slightly acidic soil, warm temperatures and high-humidity-near saturation. They also prefer higher levels of potassium to bloom.
When kept indoors in centrally heated and cooled rooms they will rarely bloom. Place them outside in partial shade (under a tree) for the summer to encourage blooming. They should receive at least four hours of direct sunlight, but need to be kept out of noonday sun in order to bloom. Too much shade discourages blooming and too much sun will burn their leaves.
Once buds appear the plants should not be disturbed. Also, dried flower spurs should not be removed as next seasons flowers will appear in these same spots.
If you are having trouble getting a Hoya to bloom, try it directly in a west window and remember when it does bloom, let the blossoms fall as another will take it's place in the same spot on the vine.
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I am curious as to which type of hoya this may be. I don't think it is a carnosa. I saved it from a local nursery, it had ill variegated leaves as if two plants had been put together which I removed. After some fresh soil and a good drink it's getting new growth.
You will have to wait for the first flowers to be sure but there is a good chance that it is an hoya carnosa. If your local nursery is not an hoya specialist it is quite sure that it is an hoya carnosa. It is not because it doesn't have the little silvery grey spots on its leaves and that the leaves are light green instead of deep green that it is not a carnosa.
Hi Catherine, thank you for your response to my question. I am going to upload another picture of the new growth my hoya has got. I have two leaves that are a deep purple color! This exciting because it's possible I may have got my hands on a pubicalyx. Still may be to early to tell, but another lead none the less.
Hi Catherine, thank you for your response to my question. I am going to upload another picture of the new growth my hoya has got. It has a deep purple or maroon color to it, which is exciting because that opens up a possibility of it being a pubicalyx!
Is the hoya plant and/or flowers poisonous?
By Judy B.
Sap in the leaves and stems may be an irritant for some people. The plant may be poisonous to cats.