Kale

Brassica oleracea

Slower than lettuce, bigger root volume, cut-and-come-again for weeks.

System

DWC, Dutch bucket

pH

5.5–6.5

EC

1.2–2.0 mS

Days

45–60

PPFD

250–400

Air temp

16–22°C

Protocol

1. 01Give it a deeper system than a skinny NFT gutter.
2. 02Harvest outer leaves; leave the growing point.
3. 03Watch for aphids on new growth.