• We are officially moved over to Discourse.
    Autoflower Discourse"
    You will have to create a new login for the new site!
    This current Xenforo-based forum will be preserved as a read-only archive going forward with efforts to better categorize and tag original and canonical content.
    The URL autoflower.org will soon point to the new Discourse site; so we'll be back to business in a few days!
    Send Son of Hobbes a private message if you have any questions!

Substrate

Substrate refers to the physical growing medium, which can be soil, coco coir, rockwool, perlite, or other inert materials. Its properties—such as aeration, water retention, and nutrient-holding capacity—directly affect root development and plant performance. In hydroponics, the substrate provides root support while nutrient delivery occurs through the solution.

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