Buckwheat
Green manures · Fagopyrum esculentum · Buckwheat family · Annual
Biomass in 30–40 days; unlocks phosphorus; smothers weeds.
After frost, late spring–summer
Seed rate: 10 g/m²
A good green manure before: Aubergine (eggplant), Courgette (zucchini), Melon, Pumpkin, Squash, Sweet Potato, Watermelon
Draws in the helpers: Ladybird, Green lacewing, Hoverfly, Parasitic wasps, Predatory bugs