Sow in flats indoors 6 – 8 wks before last frost. Cover seeds with 1/4” of potting mix. Germinates best when soil temp is at least 70˚F. Germination in 7-10 days and are slow to start. To avoid dampening off, do not over-water seedlings. Transplant to 8” spacing in all directions. Requires full sun and high fertility.
Collect seeds from seed heads that are fully dry. Shell by hand, winnow or screen to clean. Some cross-pollination may occur, isolate from varieties of the same species by 1/4 mile.