zone 9a caudiciforms

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zone 9a caudiciforms

Post Number:#1  Postby necturus » Mon Sep 04, 2017 7:44 am

Lets keep a good thing going. Anyone growing caudiciforms outside year around in zone 9a? Let's continue with the idea of a warm 9a climate that hits low 9a temps every 5 years or so, and high 8b once every 10-20 years. I've read some Cyphostemma have cold hardiness.
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Re: zone 9a caudiciforms

Post Number:#2  Postby Geoff » Mon Sep 04, 2017 8:22 am

Cyphostemma juttae seems to be OK in zone 9a, but mine is pretty large... it is possible smaller ones may not do so well. But I do have multiple sizes and ages of Tylecodon wallichii about garden and seem, so far, impervious to cold down to about 20F. Boweia volubilis also has turned out to be surprisingly hardy here.
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Re: zone 9a caudiciforms

Post Number:#3  Postby Melt in the Sun » Tue Sep 05, 2017 10:04 pm

I've seen large C. juttae in ground here in Tucson, but they are pretty careful about protecting it in winter. Not sure how tough it really is.
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Re: zone 9a caudiciforms

Post Number:#4  Postby Stan » Thu Nov 23, 2017 8:51 pm

Everybody is stuffed like a fat plant on this day. Pachypodium saundersii is worth a chance. Dont spend too much. I can't say if the dwarf form is hardier then the normal sized. My dwarf has taken 2007 and its 9b winter lows for a few days. Then you might try Jatropha- if kept dry. If wet and cold,they melt. Aloe plicitalis does a great fat plant imitation in a pot. Jade plant and its varietys. Sure you have to protect them some- but they are not near tropical needs in winter. Just keep it above freezing. Cool days are fine with them. I'm sure if you were to look at exotic Bonsai- you will see fat caudiciform looking plants galore that can take cool winters. Portulacaria in particular is "fat" and popular in Bonsai.
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Re: zone 9a caudiciforms

Post Number:#5  Postby Azuleja » Thu Nov 23, 2017 9:21 pm

How about Brachychiton rupestris? Mine won't be going unprotected for a while but it will eventually.
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Re: zone 9a caudiciforms

Post Number:#6  Postby Jkwinston » Fri Nov 24, 2017 7:05 am

Azuleja wrote:How about Brachychiton rupestris? Mine won't be going unprotected for a while but it will eventually.


I believe the B rupestris can take much colder weather than you think. My largest plant is over 8 feet tall, and has spent the last three winters outdoors without any problems. Here is another smaller plant, over 3 feet tall, enjoying our wet and damp autumn. Jkw

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Re: zone 9a caudiciforms

Post Number:#7  Postby Azuleja » Fri Nov 24, 2017 10:54 am

Awesome! I'll feel better when mine gets more established in the pot. I got it bare root and although it didn't seem to skip a beat I'll probably baby it for the first winter.
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Re: zone 9a caudiciforms

Post Number:#8  Postby necturus » Sat Dec 09, 2017 11:02 am

A 3-4 foot B. rupestris here froze back to the woody base after two nights back to back between 19-21 degrees. It was in a pot that was beside the east side of a house. Not sure how long it was below freezing. It came back strong and grows vigorously here. I think it's a nice small caudiciform for this area and could probably make it to tree size with some protection.

Another nice one is Ceiba speciosa. The low 20s will set it back, but it's also very vigorous here and I think could be easily protected and shaped into an attractive fat plant in the ground. There are some large tree sized plants here in certain areas.
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Re: zone 9a caudiciforms

Post Number:#9  Postby mickthecactus » Sun Dec 10, 2017 6:33 am

I cut my rupestris back most years (and populneus).’

Anybody grow Erythrina?
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Re: zone 9a caudiciforms

Post Number:#10  Postby Melt in the Sun » Mon Dec 11, 2017 9:18 am

I've tried a couple different Erythrina and cold has killed them all so far.
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Re: zone 9a caudiciforms

Post Number:#11  Postby Jkwinston » Mon Dec 11, 2017 9:58 am

I have one plant, and it is still alive, and at the moment it is resting comfortably in my basement. You cannot allow it to go under because of the freeze. As soon as my top soft leaves begin to yellow, I simply dig it out and put it a large pot, and yes by the end of November it claims a space in my basement. Long term, I will have to find a way to shield it from the cold if I ever leave it all winter in the ground. Jkw
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Re: zone 9a caudiciforms

Post Number:#12  Postby mickthecactus » Mon Dec 11, 2017 10:46 am

I think some of them are marginally hardy but I wouldn’t leave mine out. The only ones that stay out are an unknown Agave, Aloe striatula and Aloe polyphylla. Tonight should be a good test as -4c forecast .
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