Silica Thickens Thin Stems

Silica added to the feed from early veg makes a visible difference to sativa stem thickness, more than anything else I have tried short of a bigger fan. The cell walls end up tougher, the branches hold heavy colas without staking, and heat stress in a warm tent seems reduced as well. Dosing and which products actually contain usable silica are covered in the supplement notes on https://hazesativaseeds.com, since some bottles are mostly marketing. It needs to go in before the other nutrients or it will precipitate out.