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Globe Amaranth/Gomphrena

Use our zone-based planting guide to know when to plant globe amaranth/gomphrena.

Plant name Zone Start seeds indoors (spring/fall) Start seeds outdoors (spring/fall) Plant seedlings/transplants outdoors (spring/fall) Plant spacing # plants per person
Globe Amaranth/Gomphrena 3a March 15-April 1 Not recommended On/around May 15 (after last frost) 12-18 inches n/a
Globe Amaranth/Gomphrena 3b March 15-April 1 Not recommended On/around May 15 (after last frost) 12-18 inches n/a
Globe Amaranth/Gomphrena 4a March 15-April 1 Not recommended On/around May 15 (after last frost) 12-18 inches n/a
Globe Amaranth/Gomphrena 4b March 15-April 1 Not recommended On/around May 15 (after last frost) 12-18 inches n/a
Globe Amaranth/Gomphrena 5a Feb. 15-March 1 Not recommended On/around April 15 (after last frost) 12-18 inches n/a
Globe Amaranth/Gomphrena 5b Feb. 15-March 1 Not recommended On/around April 15 (after last frost) 12-18 inches n/a
Globe Amaranth/Gomphrena 6a Feb. 15-March 1 Not recommended On/around April 15 (after last frost) 12-18 inches n/a
Globe Amaranth/Gomphrena 6b Feb. 15-March 1 Not recommended On/around April 15 (after last frost) 12-18 inches n/a
Globe Amaranth/Gomphrena 7a Feb. 15-March 1 Not recommended On/around April 15 (after last frost) 12-18 inches n/a
Globe Amaranth/Gomphrena 7b Feb. 15-March 1 Not recommended On/around April 15 (after last frost) 12-18 inches n/a
Globe Amaranth/Gomphrena 8a Jan. 15-Feb. 1 Not recommended On/around March 15 (after last frost) 12-18 inches n/a
Globe Amaranth/Gomphrena 8b Jan. 15-Feb. 1 Not recommended On/around March 15 (after last frost) 12-18 inches n/a
Globe Amaranth/Gomphrena 9a 6-8 weeks before planting outside Not recommended year-round 12-18 inches n/a
Globe Amaranth/Gomphrena 9b 6-8 weeks before planting outside Not recommended year-round 12-18 inches n/a
Globe Amaranth/Gomphrena 10a 6-8 weeks before planting outside Not recommended year-round 12-18 inches n/a
Globe Amaranth/Gomphrena 10b 6-8 weeks before planting outside Not recommended year-round 12-18 inches n/a
Globe Amaranth/Gomphrena 11a 6-8 weeks before planting outside Not recommended year-round 12-18 inches n/a
Globe Amaranth/Gomphrena 11b 6-8 weeks before planting outside Not recommended year-round 12-18 inches n/a

* Start seeds indoors approximately 6 weeks before the average last frost date. Can be grown year-round in Zones 9-11.