Soil and watering - Kind Seed Co

Distilled Water for Cannabis: Pros and Cons

Is distilled water good for cannabis? See why it stops mineral buildup, why it lacks calcium and magnesium and how to feed plants with it.

Learn when and how to water cannabis in a greenhouse: judging pots by weight, gentle hand watering, drip lines, water quality and temperature.

Pine bark fines add structure and air to cannabis potting mixes. See why composted bark beats fresh bark and what portion of a blend it should fill.

A peat free potting mix swaps peat moss for coir, compost, bark or wood fiber. See why growers switch and a simple blend for cannabis pots.

A soil amendment improves structure while a fertilizer adds nutrients. See how they differ, where they overlap and how cannabis growers use both.

Top dressing cannabis means spreading dry amendments on the soil around a growing plant. See what to use, where it goes and when to repeat it.

Cottonseed meal is a slow organic nitrogen feed that tends to lower soil pH. See its analysis, how long it lasts and when it suits cannabis beds.

Soybean meal is a plant based fertilizer with about 7 percent nitrogen. Learn how fast it feeds cannabis and why it should go in before planting.

Clay pebbles are fired clay balls for hydroponic cannabis grows. Learn how they handle water and air, how to rinse them and when they fit best.