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My jacaranda was grown from a seed and is now 9 months old. It’s getting higher and higher. I’m very very new to bonsai and I’m not sure if I should be pruning this?, if so then how do I prune?. And should I move to a larger pot?.

Hi Neeni.

I'm pretty much in the same postion and cant seen to find an answer. Did you find one?? How did you proceed??

Thanks.

Dave.

Hey Guys, nice plant you have.
This Jac. needs a bigger pot for a while, so it can thicken it's trunk.
I wouldn't prune for now, max. I would do is to remove it's main bud, to force a bit of ramification.
For an actual prune I would wait until the trunk is around 1/2" ~ 3/4".
As the leaves are big, I would aim for a big tree and thick trunk.

I have some Jacs. now... It needs a lot of light, mine here took 0°C frost on this winter and are very healthy, they are tropicals, but they are native here from southern part of Brazil, where is colder... And they are semi-deciduous, so don't be desperate if it loses some leafs or if they go yellow/redish on winter.
It's not a easy tree for it's leaf size, but I like them... good luck.

Hi thank you so much for the response. I’m sorry but I do not know what “removing the main bud “ means. I am very very naive to bonsai. What I am gathering is that I should be moving the plant into a larger pot and just wait till the trunk thickens more?. My issue is that the plant is growing vertical rapidly, it is now 3 feet high. Do I move it into a larger pot and just keep letting it grow higher and higher until the trunk thickens. I have photos attached.

Removing the main bud = clipping the tip on top. That way the tree is encouraged to create side-branches.

I think that to get good trunk thickening, this tree should be outside as much as possible. Recreating optimal growing conditions indoor is iffy.

Yes, I would slide it to a bigger pot, and let it outside, but I have where to place them...
It needs a lot of light, and you won't need to worry much about being cold outside.

It's totally natural for a Jacarandá sapling to get very leggy, so maybe you'll have to let it grow to 2 ~ 3m to get a nice thickness before chopping it back down... I think that's the only way to deal with this species since they are not easy to thicken due to it's leggy nature. That's where encouraging side branches can help you. (More branches and more leafs will help on the process)

Checkout this pictures, see how tall they get to reach a reasonable trunk thickness.