Quote:
Originally Posted by Pondboy
I also have “rock mulch” which creates a “micro climate” to keep the ambient temperatures up. Also, it’s not just how cold it gets but how long it’s cold for. My hibiscus are on the east side so they get the early morning sun.
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Sounds right. Tricky business here in 9B. Currently having some success with propagating cuttings in an effort to work around the issue. "Domes" (for humidity) seem to be key in my efforts, although they really seemed to take off once I put that little heating pad for seedlings under them.
I *think* that all the pretty, multicolored-blooming hibiscus that we've gotten from the big box stores this year fall into the "tropical" category. We decided not to test them outside through the winter months. Dug em up and put em back in pots - after taking the cuttings. So far, so good. Testing some cheapo "grow lights", too.