Small haul: Qs about making cactus soil, and growth rates

Use this forum to discuss matters relating to Cacti genera too plentiful to enumerate. This is where one posts unknown plant photos for ID help.

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Xanthoria
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Small haul: Qs about making cactus soil, and growth rates

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Post by Xanthoria »

I got a couple of nice cacti for a steal at the weekend, and I repotted them into bigger containers right away.

Not having a specific "cactus dirt" I mixed equal parts perlite, garden soil and decomposed granite, with some lava rock for kicks. Does that sound OK?

Here's what I got:
Euphorbia leucadendron
Euphorbia leucadendron
AEE65F3A-D26D-4CCE-92A3-65FBFB41E150.jpg (60.19 KiB) Viewed 643 times
OK this is a Euphorbia, but anyone know how fast this will grow out of its 1 gallon pot? Will it do OK in pot or should I plant out?
Pilosocereus azureus
Pilosocereus azureus
CB98D68E-C976-4F98-B2DF-75623A66FAEB.jpg (78.93 KiB) Viewed 643 times
This was $36, was 2 gallon pot, now in a 5 gal pot, and about 30" tall. Most of them were pretty ratty, but this was OK with many buds. I added two more columns I had kicking around in the back... I am 99% sure same species.
Tricholobivia "Giant White"
Tricholobivia "Giant White"
8DA4D7FB-3671-485D-99C4-34398064981A.jpg (96.05 KiB) Viewed 643 times
This was $39, was 2 gallon pot, now in a 5 gal pot. How tall do these get, and what is the growth rate?
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Melt in the Sun
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Re: Small haul: Qs about making cactus soil, and growth rate

#2

Post by Melt in the Sun »

I haven't grown that particular tricho hybrid, but most can grow a few inches a year. Some are more globular and some are more columnar...that one has the look of the latter. Most of the columnars in my experience will get nearly 2 feet tall then start to fall over.
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