Cactus and Succulents forum→To repot or not to repot

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Name: João V.
Lisbon - PT (Zone 10b)
Greetings from Portugal!
Feb 5, 2021 7:29 PM CST
Hey everyone!

Got my first cactus about 2 years ago and the collection grew considerably! I never had to repot any, but now I think some of them could need a bigger pot, and as have never done it, I am not sure exactly which ones do. Confused

I will check on the roots closer to the spring but I wanted to have a general idea before (need to order the pots).

Any help would be great! Hurray!

Thumb of 2021-02-06/Wallknocker/f3f261
I am unsure about these four. #2 seems to be growing fast enough that it will get unstable on that pot (the pot isn't all soil, see below)

Thumb of 2021-02-06/Wallknocker/37134d

Thumb of 2021-02-06/Wallknocker/c1e87b

Thumb of 2021-02-06/Wallknocker/f66d28
These two have been growing like crazy, only got them 1 year ago

Thumb of 2021-02-06/Wallknocker/f8b76e
And these two are the ones I had the longest (2 years). I was actually advised to repot them last summer but I ended up leaving them be until now, so I am pretty sure about these. I am only a bit concerned about them getting taller and ending up not supporting their own weight. Thinking

Again, any help is appreciated! Big Grin
(Sorry for any eventual bad english! ^^")
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
Feb 5, 2021 7:52 PM CST
They could all use up-potting but, whether you do depends upon how big you want them to get. Some of your plants have the potential to become trees. The general rule is new pots should give one extra inch all the way around. I don't know what that translates to in bonsai pots. Smiling

Great view!
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

President: Orchid Society of Northern Nevada
Name: Baja
Baja California (Zone 11b)
Cactus and Succulents Seed Starter Foliage Fan Xeriscape Container Gardener Hummingbirder
Native Plants and Wildflowers Garden Photography Region: Mexico Plant Identifier Forum moderator Plant Database Moderator
Feb 5, 2021 8:11 PM CST


Yes, little steps are a good idea. Like 2cm wider for most plants, 5cm wider for #8-9 given the fast growth rate. And consider something deeper than the current proportions for 10-11, to give those plants greater stability. Your plants all look really good, and I too admired the view.
Name: João V.
Lisbon - PT (Zone 10b)
Greetings from Portugal!
Feb 6, 2021 3:50 PM CST
Okay, I will wait for the spring to take a look at the roots and I'll make a decision then! Right now I don't have that much room to work with (it's just a small balcony turned into a sunroom) so I wouldn't want to have them growing too fast.

I started using bonsai pots because the first cacti I got were given to me in one, and I later read online that this kind of plants usually do well in them, because they usually grow relatively shallow roots. I'll try to find some deeper ones for the next size up!

Thanks for the help! Thank You!
(Sorry for any eventual bad english! ^^")

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