Plant the chicory and radicchio seeds 1⁄4 inch deep and 1 to 2 inches apart. Space rows distance between 24 and 36 inches. When the seedlings are four inches tall, thin plants 6 to 18 inches apart. You may eat the thinnings.
Growing Chicory for the roots. Grow chicory for roots in organically rich soil planted to 18 inches deep. Roots will be able to harvest about 120 days after planting.
Growing Radicchio. Choose from combinations of heading and semi-heading. Radicchio is better planted for the autumn harvest; sow the seeds in the garden 85 days before the first frost in the fall, the radicchio demands a long, cold season. Place a plastic mulch or plastic sheet around the radicchio plants – green, black or transparent. Radicchio growing on plastic, not dirt, can significantly increase the percentage of the heading.
Growing Belgian Endive. Dig up the chicory root to create a blanched head and cut off the top about 2 inches above the root crown or top. In a dark, damp spot, such as an outdoor pit, cold frame, or root cellar, bury the root to cause it to grow a blanched sprout. Cut off the tip of the root so that the root is 6 to 8 inches long. Position the root upright angle in a bowl, pot, or other container filled with fine sand, or just cover the top with a mixture of sand and peat moss; water thoroughly and hold at a temperature of 60 ° t The compact, the pale-green head grows within 3 to 4 weeks.