| Family | Brassicaceae (mustard family) |
| Hardiness zone | 2-11 (annual/biennial) |
| Sun | Full sun to part shade |
| Water | Even, ~25 mm/week |
| Soil | Rich, firm, near-neutral pH 6-7 |
| Spacing | 45 cm apart |
| Sowing / starting | Direct or transplant around last frost; also a fall crop that takes frost to -10 °C |
| Harvest | Pick outer leaves 55+ days; hardiest of the greens, holds into winter under mulch/snow |
| Common pests | Cabbage white caterpillars (row cover), aphids, flea beetle. Rotate with non-brassicas. |
Plant identification here is educational — never eat, forage, or medicate with a wild plant on the basis of a website alone. Many edible plants have toxic look-alikes. When in doubt, grow from known seed, or confirm with an expert before you harvest.