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Old 02-09-2019, 10:15 AM   #1
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Hibiscus longevity questions


Hello to all,

Planted 8 hibiscus in summer of 2015..first 2 yrs we received a lot of flowers. We have also had 2 hard freezes that required cutting them back as low as possible. what grew from there was from very short stock.

Currently, no hard freezes but some short term hi 20's and low 30's but not enough for a major kill-back, just the tips/edges. Some new growth is coming out, but nothing major bc it's on and off cold and the sun has been scarce in West Houston.

For those that live in the SW US or similar environments, how long do hibiscus last before they need to be pulled up? Is there anything that can be done to rejuvenate them based on the above description? They receive early morning sunshine till about 1-2pm, but when they got 7-8ft tall, more sun on the tips. Here's a few pics

Thanks and pls advise, tstex
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Old 02-09-2019, 11:15 AM   #2
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Re: Hibiscus longevity questions


Here are a few flower pics from 1-2 yrs ago
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Old 02-10-2019, 07:06 AM   #3
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Re: Hibiscus longevity questions


TS


Tropical we can't do here outside. We do hardy which die back to the roots each each year and return.


A quick look at Google found that non-hybrid plants can live for 50 years and modern hybrids may only live 5-10 years.
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Old 02-10-2019, 07:17 AM   #4
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Re: Hibiscus longevity questions


Tstex, your landscaping is beautiful.
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Old 02-11-2019, 04:23 PM   #5
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Re: Hibiscus longevity questions


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TS


Tropical we can't do here outside. We do hardy which die back to the roots each each year and return.

A quick look at Google found that non-hybrid plants can live for 50 years and modern hybrids may only live 5-10 years.

Colby, thanks - The hibiscus I have, when we received a really hard freeze, the leaves all turn mushy brown and the branches die back to the root stem...I usually build up the mulch around the root mass just prior to the hard freeze to protect it from any further damage...Since we have had only a few cold spells, none that have lasted more than 10-12 hrs, [excluding wind chill], most of the plants still have green interior in the branches...thanks again, tstex
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Old 02-13-2019, 08:20 PM   #6
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Re: Hibiscus longevity questions


Can't do hibiscus here either, here they are sold at the home centers as deck plants. I suspect that they won't survive Winters until you get into Florida.
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Old 02-13-2019, 09:29 PM   #7
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Re: Hibiscus longevity questions


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Can't do hibiscus here either, here they are sold at the home centers as deck plants. I suspect that they won't survive Winters until you get into Florida.
You should be able to grow Hardy Hibiscus. Many of them grow from zone 4-9
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Old 03-06-2019, 12:11 PM   #8
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Re: Hibiscus longevity questions


@tstex , you certainly have a nice yard. Gotta agree with @Two Knots on that one!

Shrub hibiscus hybrids aren't as hardy as some of the species types, and there's also species that grow from roots as hardy perennials each year, e.g., "Southern Belle" and some of those are gorgeous.

I know, it's not an answer to your question, but a possible fun alternative. And this site is about fun alternatives . . . .
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Old 03-06-2019, 01:10 PM   #9
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Re: Hibiscus longevity questions


I've had a gorgeous two color hibiscus outside in a pot for a few years, then it seemed to up & die when colder weather came. We had huge swings in temperature from day to night. I thought it was dead but pruned it back, a little at a time, & found slight inner green. I have babied it for months & tried to keep the earthworms in the pot alive, too. They get upset if it's too wet or dry, like living soil indicators.

It now has new branch buds. but it took months.

When I lived in Hawaii, I never thought twice about the many hibiscus plants & bouganvillea except to trim them back, or pick a few flowers.
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Old 03-27-2019, 08:44 AM   #10
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Re: Hibiscus longevity questions


@tstex , another possibility is the Rose of Sharon, Hibiscus syriacus. It's a hardy shrub; there's specimens all over the U.S. from Pittsburgh to California (right next door to me) that have been in the ground for nearly 100 years and still going strong. (An elderly friend in Pittsburgh said her mom planted one at their new house on her wedding day, in 1922.)

Not as flashy as some of the tropical types, but iron-clad for reliability.
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Old 03-27-2019, 09:32 AM   #11
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Re: Hibiscus longevity questions


We had a hardy hibiscus for several years before it died. zone 7, NY.

We also try and plant one tropical hibiscus each spring.
Here is one at the end of our ponds ‘dog leg.’
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Old 03-28-2019, 11:52 PM   #12
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Re: Hibiscus longevity questions


Post #10.......x2
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Old 03-29-2019, 11:35 AM   #13
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Thanks everyone
And, nice yard 2 knots / very colorful 👍
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Old 03-30-2019, 06:29 PM   #14
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Re: Hibiscus longevity questions


I can tell you in a tropical environment, they can last for decades. Growing up, we had a whole hedge of them lining our yard where it met an embankment. Every year we would trim them down to about a five-foot height and square up the sides. They flowered so much we would pick them to make tea with the flower petals.
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