Root pruning , do I seal cuts

[snox]

When it's repotting time here in the UK I plan to move some maples from garden pots into training pots .This will involve cutting some big roots back , the one thing I am not sure on is do I seal the large root cuts after or leave them as they are and go ahead and pot them up .

 

[Davidlpf]

Nowdays I do not seal the wounds that are under the substrate line, even the big ones. You can see my repots and how my "bigger" trident goes in this youtube playlist
A draining substrate helps avoid rot problems in the roots and cuts: I use 50% akadama and pumice mix and a extra ventilated "pot". The climate in Spain is somewhat less rainy than in the UK, keep it on mind too!. You can seal o you cann't I haven't see any diferencences when the cuts aren under the ground.

Cheers.

 

[Jpxc17]

No. Never seal any roots. It is essentially universally accepted in bonsai to not seal roots.

 

[Wires_Guy_wires]

Whenever I do large cuts I do rub some vaseline on the wounds. Over time it will disappear, but for the first couple weeks it should be a bit water repellent.
I think there's no harm in it.

 

[rockm]

not necessary and can actually inhibit new root growth by blocking new roots from emerging from the cut site.

 

[snox]

Thanks for the replies and Info , it's appreciated . And davidlpf I will be sure to check out your channel mate.