How it grows
| Sun | Part shade |
|---|---|
| Moisture | Normal |
| Soil | heavy (clay loam) |
| Spacing | 8 cm |
| Rotation group | Legumes, roots & onions |
| How to plant | seed in the ground |
| Green manure before it | Winter Rye |
| Protector plant | Mint |
| Bad neighbours | Garlic, Leek, Onion |
When to sow, by climate zone
| Zone | In the ground | Sow indoors | Sow again for autumn |
|---|---|---|---|
| Zone 3 | late Apr – early May | ||
| Zone 4 | mid-Apr – late Apr | ||
| Zone 5 | early Apr – mid-Apr | ||
| Zone 6 | late Mar – late Apr | late Jul – mid-Aug | |
| Zone 7 | mid-Mar – mid-Apr | early Aug – late Aug | |
| Zone 8 | late Feb – late Mar | late Aug – early Sep | |
| Zone 9 | late Jan – early Mar | mid-Sep – late Sep | |
| Zone 10 | early Jan – mid-Feb | late Sep – mid-Oct |
Dates for the average frost dates of each zone; the app works them out for your own town.