Ive grown plants well over 4 ft tall in a 3 gal pot. Bigger is better if you have the vertical space. If you dont then the 3 gal will be fine.
StarKiller OG - Rockwool - Ebb & Flow - 1200W LED - 2016
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How do I top my plants?
Auto Growers Unite - A Community Thread
StarKiller OG - Rockwool - Ebb & Flow - 1200W LED - 2016
New Member Start Links
How do I top my plants?
Auto Growers Unite - A Community Thread