Soil and watering - Kind Seed Co

Garden Lime for Cannabis: Raising Soil pH

Garden lime raises acidic soil pH for outdoor cannabis. Learn why a soil test comes first and how far ahead growers apply it.

Gypsum adds calcium and sulfur without raising pH. Learn when a soil test points to gypsum for cannabis and hemp, and when it adds nothing.

Raised beds drain faster and warm sooner than flat ground. Learn when they help outdoor cannabis, how deep to build them and what to fill them with.

Perlite adds air, while vermiculite holds water and nutrients. Learn how each changes a cannabis mix, what research used, and how growers choose.

Rockwool is a uniform grow medium used for clones and hydro. Learn how it compares for cannabis, its drawbacks, and how growers prepare it.

Drip irrigation for cannabis puts water at the roots. Learn how hemp growers use drip lines and judge run times by soil moisture.

Bottom watering lets pots soak up water from below. Learn when it suits cannabis in containers, how growers do it, and how to avoid salt buildup.

Air layering grows roots on a cannabis branch while it is still on the plant. Learn how growers do it and how it compares to taking cuttings.

White crust on the pot or soil and burnt leaf tips can point to salt buildup. Learn what causes it in cannabis and how growers leach it out.