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Name: Rj
Just S of the twin cities of M (Zone 4b)
Garden Ideas: Level 1 Plant Identifier
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crawgarden
Jul 25, 2016 8:28 PM CST
Sorry to ask, but what Cactus is this? We have had this plant since 1987, thanks!


Thumb of 2016-07-26/crawgarden/31d947
Name: Thijs van Soest
Mesa, AZ (Zone 9b)
Adeniums Enjoys or suffers hot summers Cactus and Succulents Container Gardener Hummingbirder Xeriscape
Region: Arizona Region: Southwest Gardening Seed Starter Plant and/or Seed Trader Cat Lover Dog Lover
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mcvansoest
Jul 25, 2016 11:45 PM CST
i think some kind of Pilosocereus. Hard to say which specific one.
Name: 'CareBear'

Sempervivums Hostas Dog Lover Irises Amaryllis Cactus and Succulents
Region: Pennsylvania
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Stush2019
Jul 26, 2016 11:43 AM CST
Also if you want arms to grow, You have to cut off the very tip top of it. It will grow to 10 feet or more but in that pot it may just go to 4 ft.

slothfullebanese
Aug 1, 2016 11:11 PM CST
Stush2019 said:Also if you want arms to grow, You have to cut off the very tip top of it. It will grow to 10 feet or more but in that pot it may just go to 4 ft.


Had no idea, thanks!

Why does it dimple in the middle? Stress?
Name: Thijs van Soest
Mesa, AZ (Zone 9b)
Adeniums Enjoys or suffers hot summers Cactus and Succulents Container Gardener Hummingbirder Xeriscape
Region: Arizona Region: Southwest Gardening Seed Starter Plant and/or Seed Trader Cat Lover Dog Lover
Image
mcvansoest
Aug 2, 2016 8:20 AM CST
Stress or unfavorable growing conditions: for example, these plants get stretchy and thin when not getting enough light. These plants like a lot of light. They take pretty much all day full sun here in Mesa, AZ.

This is an older picture of one of my Pilosocereus plants (probably not quite the same species), you can see that right below its branching spot it has a much thinner and narrower section. I got this plant as a cutting and I had it in the shade while I was waiting for it to root. It grew that thin not quite right looking section during the rooting process. The branching happened for me after the growth tip froze one winter, since then I cover it for the few days each year we might have below freezing temperatures at night. Being out in the full sun brings out the best of its coloring.

Thumb of 2016-08-02/mcvansoest/45096c

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