Nematode Control Marigold is grown as a cover crop against root-knot nematodes and tilled in as green manure. The packet holds 1 ounce, enough to sow about 1,000 sq. ft.
Dust seeds on the surface and lightly cover. Sprout takes 7-10 days in 70-75ºF soil. Sow a week or two before the last frost into early summer, spacing 8-15 inches apart. In short seasons, grow it the season before vegetables.
