Radicchio

Use our zone-based planting guide to know when to plant radicchio.

Plant name Zone Start seeds indoors Start seeds outdoors Plant seedlings/transplants outdoors Plant spacing # plants per person
Radicchio 3a On/around March 15 On/around May 1; on/around Aug. 1 On/around May 1 8-12 inches 5-6
Radicchio 3b On/around March 15 On/around May 1; on/around Aug. 1 On/around May 1 8-12 inches 5-6
Radicchio 4a On/around March 15 On/around May 1; on/around Aug. 1 On/around May 1 8-12 inches 5-6
Radicchio 4b On/around March 15 On/around May 1; on/around Aug. 1 On/around May 1 8-12 inches 5-6
Radicchio 5a On/around Feb. 15 On/around April 1; on/around Sept. 1 On/around April 1 8-12 inches 5-6
Radicchio 5b On/around Feb. 15 On/around April 1; on/around Sept. 1 On/around April 1 8-12 inches 5-6
Radicchio 6a On/around Feb. 15 On/around April 1; on/around Sept. 1 On/around April 1 8-12 inches 5-6
Radicchio 6b On/around Feb. 15 On/around April 1; on/around Sept. 1 On/around April 1 8-12 inches 5-6
Radicchio 7a On/around Feb. 15 On/around April 1; on/around Sept. 1 On/around April 1 8-12 inches 5-6
Radicchio 7b On/around Feb. 15 On/around April 1; on/around Sept. 1 On/around April 1 8-12 inches 5-6
Radicchio 8a On/around Jan. 15 On/around March 1; on/around Oct. 1 On/around March 1 8-12 inches 5-6
Radicchio 8b On/around Jan. 15 On/around March 1; on/around Oct. 1 On/around March 1 8-12 inches 5-6
Radicchio 9a On/around Dec. 15 On/around Feb. 1; on/around Oct. 1 On/around Feb. 1 8-12 inches 5-6
Radicchio 9b On/around Dec. 15 On/around Feb. 1; on/around Oct. 1 On/around Feb. 1 8-12 inches 5-6
Radicchio 10a On/around Nov. 30 On/around Feb. 1; on/around Oct. 1 On/around Jan. 1 8-12 inches 5-6
Radicchio 10b On/around Nov. 30 On/around Feb. 1; on/around Oct. 1 On/around Jan. 1 8-12 inches 5-6
Radicchio 11a Jan. 1-15; Oct. 15-30 Jan. 15-Feb. 15; Nov. 1-15 Jan. 15-Feb. 15 8-12 inches 5-6
Radicchio 11b Jan. 1-15; Oct. 15-30 Jan. 15-Feb. 15; Nov. 1-15 Jan. 15-Feb. 15 8-12 inches 5-6

* Start seeds indoors approximately 8 weeks before average last frost date. Direct sow 2 weeks before the last frost in the spring, again approximately 6 weeks before the first frost for a fall harvest in most climates.