Corn

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

Plant name Zone Start seeds indoors Start seeds outdoors Plant seedlings/transplants outdoors Plant spacing # plants per person
Corn 3a Not recommended On/around May 15 (after last frost) On/around May 15 (after last frost) 8-12 inches 10-15
Corn 3b Not recommended On/around May 15 (after last frost) On/around May 15 (after last frost) 8-12 inches 10-15
Corn 4a Not recommended On/around May 15 (after last frost) On/around May 15 (after last frost) 8-12 inches 10-15
Corn 4b Not recommended On/around May 15 (after last frost) On/around May 15 (after last frost) 8-12 inches 10-15
Corn 5a Not recommended On/around April 15 (after last frost) On/around April 15 (after last frost) 8-12 inches 10-15
Corn 5b Not recommended On/around April 15 (after last frost) On/around April 15 (after last frost) 8-12 inches 10-15
Corn 6a Not recommended On/around April 15 (after last frost) On/around April 15 (after last frost) 8-12 inches 10-15
Corn 6b Not recommended On/around April 15 (after last frost) On/around April 15 (after last frost) 8-12 inches 10-15
Corn 7a Not recommended On/around April 15 (after last frost) On/around April 15 (after last frost) 8-12 inches 10-15
Corn 7b Not recommended On/around April 15 (after last frost) On/around April 15 (after last frost) 8-12 inches 10-15
Corn 8a Not recommended On/around March 15 (after last frost) On/around March 15 (after last frost) 8-12 inches 10-15
Corn 8b Not recommended On/around March 15 (after last frost) On/around March 15 (after last frost) 8-12 inches 10-15
Corn 9a Not recommended On/around Feb. 15 (after last frost) On/around Feb. 15 (after last frost) 8-12 inches 10-15
Corn 9b Not recommended On/around Feb. 15 (after last frost) On/around Feb. 15 (after last frost) 8-12 inches 10-15
Corn 10a Not recommended On/around Jan. 30 (after last frost) On/around Jan. 30 (after last frost) 8-12 inches 10-15
Corn 10b Not recommended On/around Jan. 30 (after last frost) On/around Jan. 30 (after last frost) 8-12 inches 10-15
Corn 11a Not recommended November, March November, March 8-12 inches 10-15
Corn 11b Not recommended November, March November, March 8-12 inches 10-15

* Direct sow or transplant seedlings after the threat of frost. When transplanting, take special care not to damage their complex root systems.