Grower's Glossary

Plain-language definitions of the 229 terms growers meet on product labels, feed charts, lab reports and export paperwork. Nine sections, one page each. Every entry explains what a term means and where you meet it — not how much of anything to use.

Cultivation & Plant Training · 38 terms

Growth stages, training methods such as topping, LST and SCROG, and the plant biology behind them.

Propagation & Plant Material · 21 terms

Cuttings, grafting, tissue culture and the breeding vocabulary on seed and clone listings.

Fertilizers & Nutrients · 37 terms

What the words on a nutrient label mean: NPK, cal-mag, chelates, lockout, flushing and the rest.

Substrates & Growing Systems · 25 terms

Coco, peat, rockwool, perlite and the hydroponic systems they are used in.

Environment & Lighting · 23 terms

VPD, RH, DLI, PPFD, PAR and the lamp types behind LED, HPS and CMH.

Pests, Disease & IPM · 32 terms

The pests and diseases growers meet, the beneficial organisms used against them, and what IPM means.

Measurement & Lab Testing · 22 terms

Meter readings and lab-report parameters: EC, TDS, COA, water activity, heavy metals, microbial counts.

Drying, Curing & Post-Harvest · 7 terms

What happens to harvested material between the field and storage.

GACP, GMP & Export · 24 terms

Quality-system and shipping paperwork: SOPs, batch records, traceability, phytosanitary certificates, HS codes.