Raising Hardy Hibiscus from Seed - Knowledgebase Question

Ephrata, PA
Avatar for eula425
Question by eula425
November 12, 1998
I took the seeds or what I assumed were seeds from the dried flowers of the hardy hibiscus plant I have. They were very hard black ones. I tried soaking them in water for a few days to soften the outer skins but still couldn't seem to get them to germinate. Are these true seeds? How do I go about raising plants from them, if they ae really seeds?

Answer from NGA
November 12, 1998
By hardy hibiscus I assume here you mean musk mallow or rose mallow. These should germinate quite rapidly at a very warm soil temperature of between 71 and 75 degrees. I can think of several reasons why your seeds might not germinate: too cool a soil temperature, soil too dry or too wet, or if you are collecting them from a hybrid plant it is quite possible that the seeds are not viable to begin with.

If you actually mean the hardy hibiscus shrub, H. syriacus, these should also germinate without pretreatment and in fact the seedlings can be a pest in the garden. Here again, though, there are several modern hybrids bred to reduce the self seeding problem and so produce little if any viable seed.

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