Celosia

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

Plant name Zone Start seeds indoors (spring/fall) Start seeds outdoors (spring/fall) Plant seedlings/transplants outdoors (spring/fall) Plant spacing # plants per person
Celosia 3a April 1-15 Not recommended On/around May 30 (2 weeks after last frost) 6-18 inches n/a
Celosia 3b April 1-15 Not recommended On/around May 30 (2 weeks after last frost) 6-18 inches n/a
Celosia 4a April 1-15 Not recommended On/around May 30 (2 weeks after last frost) 6-18 inches n/a
Celosia 4b April 1-15 Not recommended On/around May 30 (2 weeks after last frost) 6-18 inches n/a
Celosia 5a March 1-15 Not recommended On/around April 30 (2 weeks after last frost) 6-18 inches n/a
Celosia 5b March 1-15 Not recommended On/around April 30 (2 weeks after last frost) 6-18 inches n/a
Celosia 6a March 1-15 Not recommended On/around April 30 (2 weeks after last frost) 6-18 inches n/a
Celosia 6b March 1-15 Not recommended On/around April 30 (2 weeks after last frost) 6-18 inches n/a
Celosia 7a March 1-15 Not recommended On/around April 30 (2 weeks after last frost) 6-18 inches n/a
Celosia 7b March 1-15 Not recommended On/around April 30 (2 weeks after last frost) 6-18 inches n/a
Celosia 8a Feb. 1-15 Not recommended On/around March 30 (2 weeks after last frost) 6-18 inches n/a
Celosia 8b Feb. 1-15 Not recommended On/around March 30 (2 weeks after last frost) 6-18 inches n/a
Celosia 9a Feb. 1-15 Not recommended On/around March 30 (2 weeks after last frost) 6-18 inches n/a
Celosia 9b Feb. 1-15 Not recommended On/around March 30 (2 weeks after last frost) 6-18 inches n/a
Celosia 10a 4-6 weeks before planting outside Not recommended year-round 6-18 inches n/a
Celosia 10b 4-6 weeks before planting outside Not recommended year-round 6-18 inches n/a
Celosia 11a 4-6 weeks before planting outside Not recommended year-round 6-18 inches n/a
Celosia 11b 4-6 weeks before planting outside Not recommended year-round 6-18 inches n/a

* Can be grown as a perennial in Zones 10-11. Start seeds indoors 4-6 weeks before planting outside. Transfer outside after the threat of frost, ideally two weeks after the average last frost date.