Radicchio
Cichorium intybus
Planting:
Direct seed as soon as the ground can be worked, or once the soil has warmed to 15-18°C (60-65°F). Provide frost protection when needed. Sow thinly ¼" deep, thin seedling to 8-10" apart in beds or rows 12-18" apart. Grow in the spring and fall for best crop. Stagger seeding every 2 weeks until mid summer to ensure long harvest.
Growing:
Radicchio prefers full sun, a soil pH of 5.5-6.8, and a rich soil with plenty of compost or well rotted manure added prior to planting.
Harvesting:
Cut as soon as the heads are firm.
Pests & Diseases:
Distract insects by using row covers and companion planting. Rotenone and Pyrethrum will control aphids, plant bugs and leaf hoppers. Slugs cherish lettuce; use slug bait to control slugs.
Companions:
Lettuce; avoid planting with endive or escarole.
