Subterranean clover (Trifolium subterraneum) is a low-growing annual herb grown as a nitrogen-fixing ground cover and pasture legume, with edible leaves. Inputs Hardiness zone 71 Hardiness zone 81 Hardiness zone 91 Hardiness zone 101 Full sun1 Moist soil1 Outputs Human food1 Type Trifolium spp. - Clover Herb Annual Functions Nitrogen fixer1 Ground cover1 Footnotes Trifolium subterraneum | Plants for a Future ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7 ↩8 ↩9