| ZONE 1
| BELOW -50F
| Sow seed in early spring when soil can be worked |
| ZONE 2
| -50F to -40F
| Sow seed in early spring when soil can be worked |
| ZONE 3
| -40F to -30F
| Spring: April 15-June 15 -- Fall: August 15-October 1 |
| ZONE 4
| -30F to -20F
| Spring: April 15-June 15 -- Fall: September 1-October 15 |
| ZONE 5
| -20F to -10F
| Spring: April 15-June 15 -- Fall: September 1-October 15 |
| ZONE 6
| -10F to 0F
| Spring: March 15-May 15 -- Fall: September 15-November 1 |
| ZONE 7
| 0F to 10F
| Spring: February 15-April 15 -- Fall: September 15-November 15 |
| ZONE 8
| 10F to 20F
| Spring: January 15-March 1 -- Fall: October 1-December 1 |
| ZONE 9
| 20F to 30F
| Spring: January 1-March 1 -- Fall: Ocober 1-December 1 |
| ZONE 10
| 30F to 40F
| Spring: January 1-March 1 -- Fall: Ocober 1-December 1 |
| ZONE 11
| ABOVE 40F
| Spring: January 1-March 1 -- Fall: Ocober 1-December 1 |