Root pruning in smart pots?

Buyfrommycity said:

Really!? I personally have never expierenced roots growing through smart pots and have only seen it in pictures in hydro grows. Would love to see a pic.
Guy at my hydro store says he just puts a cloth bag inside another cloth bag.
I vegged a plant for an entire year almost in a 5 gal smart pot and roots never grew through.

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ANC said:

If the sides are dry the roots will air prune themselves. As always, it is better to have something that lifts your pot off the ground a bit so air can get in there to do its work.

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SchweeDubz said:

I recently repotted from 3g buckets into 7g smart pots, about 10 days ago. I am starting to see the roots coming through the bottom and sides. Am I supposed to prune these or just let them roll? Thanks.

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