Hibiscus - bought an exotic hibiscus plant this spring. Should we spray with cloud cover for the winter?

Live in Northern California and we get frost.

Hibiscus - bought an exotic hibiscus plant this spring. Should we spray with cloud cover for the winter?
You should bring it back inside for winter and put it in a sunny window and next spring when danger of frost is past plant in garden.
Reply:The exotic hibiscus you bought will suffer from cold and be damaged or killed by frost. Cloud cover can help prevent frost by eliminating ice nucleating bacteria on the leaves. However it will not prevent frost or freeze damage. It is usually used as a last resort where short duration frosts above 32 degrees would be expected. In other words it can help, but will not prevent a plant from freezing.
Reply:Did the flowers go alread, it makes a wonderful tea.
Reply:What did the literature say about it? Some Hibisci tolerate a bit of frost and some don't.
Reply:If it is a tropical hibiscus, bring it inside for winter. Mine are already nipped a bit in Oklahoma, with temps down to about 37. They cannot tolorate a freeze at all. Perennial ones can, however.
Reply:What type of hubiscus is this. Some are hardy to montana! You probably have a tropical hibiscus. Just in case I would bring it inside when temperatures dip below 40.
Reply:From:


http://www.strictlyhibiscus.com/care.php





"WINTER PROOFING


Up North your hibiscus plants will need to be brought inside for the Winter. In the deeper south, like Florida, you may only have to cover your plants to protect them from a light frost. When Winter approaches, it is a good idea to use a fertilizer like 2-10-10 to harden up your hibiscus plants."


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Lots more good info from the link above such as pests and diseases.





If you do lose it, don't be afraid to start over next spring.
Reply:If your temps ever dip below 45 degrees then I would suggest you bring it indoors. Tropical hibiscus can not tolerate cold temperatures. I've never heard of spraying something with cloud cover, but whatever it is I doubt it would work for a tropical hibiscus. However if your hibiscus is a perennial or hardy hibiscus then you don't have to do anything to it at all.


Good Luck