Root Bound Cannabis: Signs, Causes and Fixes
Root bound cannabis is a plant whose roots have filled the pot and started circling, which slows growth and makes […]
Growing Cannabis in Clay Soil: Drainage and Amending
Clay soil cannabis guide: why clay drains slowly, how its infiltration rate compares with sand and loam, and why adding sand can make it worse.
Peat Moss for Cannabis: Water Holding and Liming
Peat moss cannabis guide: what sphagnum peat is, why it holds so much water, how it compares with coir, and why peat mixes are limed before planting.
Compost Tea for Cannabis: What the Evidence Says
Compost tea cannabis guide: how aerated and non-aerated teas are brewed, why disease results are inconsistent, and where compost itself does better.
Bat Guano for Cannabis: High-N vs High-P Guano
Bat guano cannabis guide: why some guano is high in nitrogen and some in phosphorus, typical analyses, and how growers use it in soil or as a tea.
Kelp for Cannabis: Kelp Meal and Seaweed Extract
Kelp for cannabis explained: how kelp meal differs from liquid seaweed extract, its mild nutrient analysis, and what growers can expect from kelp in soil.
Worm Castings for Cannabis: How to Use Them
Worm castings, or vermicompost, are an organic fertilizer. See what hemp studies found and how growers mix castings into cannabis soil.
Rooting Hormone for Cannabis Clones: Does It Help?
Does rooting hormone help cannabis clones root? See what research found for IBA versus willow extract and how growers apply it.
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.