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KnowBull420 started grow question 4 years ago
I would like to have input (both scientific and anecdotal) regarding the "pruning" of roots in a hydroponic system.

I see Current Culture system users do this - wonder about pruning with respect to all hydroponic approaches.
Lesson learned - Be Patient
18 weeks
Lesson learned - Be Patient KnowBull420
White Widow (fem)
15 comments · 3 years ago
Week 4
Plant. Too tall
Experimentgreen answered grow question 4 years ago
When i think of the roots i think of how similar they are to the leaves, and we prune the leaves. They both carry water and nutrients, and occasionally they both grow out of control or just need a trim. So many of us use fabric pots or air pots and they all air prune the roots, I've even had to sever roots that grew out of the smart pots. But in regards to hydroponics I imagine you would do more cuttings of roots than letting them dry and i think this is a good thing. Everytime we cut a root it grows more of the little tiny branching roots or fibrous roots in its place, and these new tiny roots are much better at nutrient intake. My guess is because they're young, healthy and undamaged. I don't grow hydroponically but if i did i would definitely be root pruning, just as safely as i could and without getting too close to the heart of the plant or root ball or whatever you like to call it. :blush::v: Happy growing your plants look very beautiful and healthy, I'm always a bit envious of the people brave enough to do hydro. Happy new year
CRiSPrGrow answered grow question 4 years ago
there is so much evidence that root pruning eg air pruning the roots improves growth speed and health in hydro that most experiments in hydro dont even bother mentioning they're doing it because "it's so obvious". put simply it's part of the correct way to grow hydro, you see folks with struggling seedlings get convinced by a bulbi like me to clips some of their roots off and the plant blows up the next day. Bottom line is plants are riddiculous and totally dependent on us to thrive at optimal levels, in a controlled system like hydro they depend all the more on our interventions including "kinetic" interventions like HST and root pruning. Dont even wait before doing it, do it now until week 5 regularly for the best results. worse thing that could happen is your stress the plant a few days and learn what the limits are to the pruning ... hope this helps ! :rocket: