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Swiss Chard

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

Plant name Zone Start seeds indoors Start seeds outdoors Plant seedlings/transplants outdoors Plant spacing # plants per person
Swiss chard 3a March 15-April 1 April 15-May 1; Aug. 1-15 April 15-May 1 12-18 inches 3
Swiss chard 3b March 15-April 1 April 15-May 1; Aug. 1-15 April 15-May 1 12-18 inches 3
Swiss chard 4a March 15-April 1 April 15-May 1; Aug. 1-15 April 15-May 1 12-18 inches 3
Swiss chard 4b March 15-April 1 April 15-May 1; Aug. 1-15 April 15-May 1 12-18 inches 3
Swiss chard 5a Feb. 15-March 1 March 15-April 1; Sept. 1-15 March 15-April 1 12-18 inches 3
Swiss chard 5b Feb. 15-March 1 March 15-April 1; Sept. 1-15 March 15-April 1 12-18 inches 3
Swiss chard 6a Feb. 15-March 1 March 15-April 1; Sept. 1-15 March 15-April 1 12-18 inches 3
Swiss chard 6b Feb. 15-March 1 March 15-April 1; Sept. 1-15 March 15-April 1 12-18 inches 3
Swiss chard 7a Feb. 15-March 1 March 15-April 1; Sept. 1-15 March 15-April 1 12-18 inches 3
Swiss chard 7b Feb. 15-March 1 March 15-April 1; Sept. 1-15 March 15-April 1 12-18 inches 3
Swiss chard 8a Jan. 15-Feb. 1 Feb. 15-March 1; Oct. 1-15 Feb. 15-March 1 12-18 inches 3
Swiss chard 8b Jan. 15-Feb. 1 Feb. 15-March 1; Oct. 1-15 Feb. 15-March 1 12-18 inches 3
Swiss chard 9a Dec. 15-Jan. 1 Jan. 15-Feb. 1; Oct. 1-15 Jan. 15-30 12-18 inches 3
Swiss chard 9b Dec. 15-Jan. 1 Jan. 15-Feb. 1; Oct. 1-15 Jan. 15-30 12-18 inches 3
Swiss chard 10a Nov. 1-15; Aug. 1-15 Jan. 1-15; Oct. 1-15 Jan. 15-30 12-18 inches 3
Swiss chard 10b Nov. 1-15; Aug. 1-15 Jan. 1-15; Oct. 1-15 Jan. 15-30 12-18 inches 3
Swiss chard 11a Jan. 1-15 March 1-30 March 1-30 12-18 inches 3
Swiss chard 11b Jan. 1-15 March 1-30 March 1-30 12-18 inches 3

* Although traditionally viewed as a cool-weather crop, Swiss chard tolerates heat better than many other greens.