| Family | Solanaceae (nightshade family) |
| Hardiness zone | 2-11 (annual) |
| Sun | Full sun |
| Water | 25-40 mm/week, steady while tubers bulk |
| Soil | Loose, slightly acidic (pH 5-6); hill loose soil over stems as they grow |
| Spacing | 30 cm apart, rows 75 cm |
| Sowing / starting | Plant seed potatoes 2-4 weeks before last frost, eyes up |
| Harvest | New potatoes ~10 wk; storage crop after tops die back. Cure 1-2 wk in the dark. |
| Common pests | Colorado potato beetle (hand-pick), late blight, wireworm. Never plant near tomatoes (shared blight). |
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.