Best Summer Cover Crops

For weed suppression and a major boost to soil fertility, sow these four fast-growing summer cover crops in any patch possible, even during your prime gardening season.

Sunn Hemp Flowers Are Yellow
Sunn hemp’s yellow blooms boost insect diversity. Sunn hemp can be a valuable fodder for livestock, but only if the variety grown is ‘Tropic Sun.’ Other strains contain toxic alkaloids.
Photo by Glenn Sakamoto Photography