Hibiscus in zone 6

poaky1June 7, 2013

I added onto Arctictropicals post above but I should have added my own post. My hibiscus is zone 8 hardy and I am in zone 6. Arctictropical mulches heavily and has gotten good results in zone 4. I really just want to know, in zone 6, do I need to wrap the branches besides mulching the roots? Should I protect the top or just worry about the root system?

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What sort of Hibiscus is rated hardy to zone 8?

In my experience tropical hibiscus are considered lower zone 9 hardy at best, suffering significant damage even with light frosts. On the other hand, "hardy hibiscus" (various species) often come back each spring in colder climates (easily encompassing zone 6) without mulching, though above ground growth is killed back. I have a white-flowered species that dies back to the ground each year but currently has 2-3 foot shoots growing.

    Bookmark   June 17, 2013 at 5:46PM
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Try some kopper king hibiscus. They are hardy to at least zone 5 and have BEAUTIFUL blooms and foliage. They are late to come up in the spring though (mine start sprouting in late May/Early June) so don't lose hope on them if it takes a while in the spring for you to see them. Here's a few pics of mine...

Good luck!

Here is a link that might be useful: My Plant Blog!

    Bookmark   June 27, 2013 at 7:37PM
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I have a zone 8 hardy Hibiscus blooming here in zone 6. I will overwinter it in the basement or greenhouse.

    Bookmark   July 3, 2013 at 5:40AM
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My Hibiscis is pink and burgundy. I will surely need it in the basement for the coldest part of winter. My greenhouse is 6X8 unheated. I have 2 doghouse heaters which I may employ in early spring though.

    Bookmark   August 4, 2013 at 3:51AM
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My Hibiscis was labeled zone 8 hardy on it's tag. I bought it from WAL_MART not a nursery. They had Oleanders labeled zone 8 also. I doubt that is correct, but not sure. My Hibiscus is in a pot but is blooming great. I think basement in winter is best, a low of 55 F in winter. I am glad to see all of the new varieties available here. Our Lowes has many tropical this year. Never before available. But of course must be potted.

    Bookmark   August 9, 2013 at 1:47AM
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bill_ri_z6b(Zone 6B)

There are so many beautiful hardy hibiscus varieties that I don't bother with the tropical, except maybe as house plants. The hardy ones are fine in zone 6 and some maybe even zone 5.
This is "Lord Baltimore" and the color is as dazzling as any tropicals that I've seen. The flowers are larger, too, maybe 9-10 inches across!

    Bookmark   August 22, 2013 at 11:45AM
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My friend has a Kopper king LOOKING hibiscus by her deck, I forgot to ask her about it. It's in the ground, so is either hardy or she planted in spring of 2013. She is literally at the foot of the mountains around here in Pa. The 2 southern Magnolias I gave her and planted are doing fine.

    Bookmark   August 23, 2013 at 10:31PM
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sandy0225(z5 Indiana)

there are many many hardy hibiscus. I have sold at least 20 different kinds at my greenhouse over the years. That being said they are perfectly hardy here in z 5. I do love my tropical though because it blooms all summer long as opposed to the hardy ones that just bloom july-frost.

    Bookmark   August 25, 2013 at 11:26AM
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Sandy, Mine have blooms AT LEAST July- whenever frost will be. I am assuming mine will stop at first frost, Well, I should put it in the greenhouse, I would think. It is hard to imagine what a zone 8 hardy plant will endure in zone 8. I heard from a guy in zone 8 it actually got down to 19 F for Several hours in his tent in zone 8.

    Bookmark   September 1, 2013 at 1:15AM
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I have moved my Hibiscus inside for now. How low of temps can I let it remain outside and still live? It had so many buds still ready to bloom when I took it in last week.

    Bookmark   September 19, 2013 at 1:32AM
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