Planting Zones by State 2025
Delaware
7
State | Coldest Planting Zone | Warmest Planting Zone | |
|---|---|---|---|
 | Alabama | 7a | 9a |
 | Alaska | 1a | 8b |
 | Arizona | 4b | 10b |
 | Arkansas | 6b | 8a |
 | California | 5a | 10b |
 | Colorado | 5b | 6a |
 | Connecticut | 5b | 7a |
 | Delaware | 7 | 7 |
 | Florida | 8a | 11a |
 | Georgia | 6a | 9a |
 | Hawaii | 9a | 13a |
 | Idaho | 3b | 7b |
 | Illinois | 5a | 7a |
 | Indiana | 5b | 6b |
 | Iowa | 4b | 6a |
 | Kansas | 5b | 7a |
 | Kentucky | 6a | 7a |
 | Louisiana | 8a | 10a |
 | Maine | 3b | 5b |
 | Maryland | 5b | 8a |
 | Massachusetts | 5a | 7b |
 | Michigan | 4a | 5b |
 | Minnesota | 3a | 5a |
 | Mississippi | 7a | 9a |
 | Missouri | 5b | 7a |
 | Montana | 3a | 5b |
 | Nebraska | 4a | 5b |
 | Nevada | 4a | 10a |
 | New Hampshire | 3b | 6a |
 | New Jersey | 6a | 7b |
 | New Mexico | 4b | 9a |
 | New York | 3b | 7b |
 | North Carolina | 5b | 8b |
 | North Dakota | 2b | 6a |
 | Ohio | 5a | 6a |
 | Oklahoma | 6a | 7b |
 | Oregon | 4b | 9b |
 | Pennsylvania | 5b | 7a |
 | Rhode Island | 5b | 7a |
 | South Carolina | 7a | 9a |
 | South Dakota | 3b | 4b |
 | Tennessee | 5b | 8a |
 | Texas | 6b | 10a |
 | Utah | 4a | 9a |
 | Vermont | 3b | 5b |
 | Virginia | 5a | 8a |
 | Washington | 4a | 9a |
 | West Virginia | 5a | 7a |
 | Wisconsin | 3b | 5b |
 | Wyoming | 3a | 6a |
Planting zones are listed by each state’s coolest and warmest planting zone. All zones in between those boundaries can be assumed to be included in the state. For example, Colorado’s coolest zone is 3a and its warmest is 7a, therefore zones 4, 5, and 6 are included.
The US covers a large area, and that also results in having a wide range of planting zones. To understand which states fall into which planting zones, we must first look at the planting zones. These planting zones are based on the 2012 USDA Plant Hardiness Zones.
Here is an overview of how the US zones are broken down based on the last frost to the first frost dates.
The Planting Zones in the United States
- Zone 1: May 22 – June 4 and August 25-31
- Zone 2: May 15-22 and September 1-8
- Zone 3: May 1-16 and September 8-15
- Zone 4: April 24 – May 12 and September 21 – October 7
- Zone 5: April 7-30 and October 13 – October 21
- Zone 6: April 1-21 and October 17-31
- Zone 7: March 22 – April 3 and October 29 – November 15
- Zone 8: March 13-28 and November 7-28
- Zone 9: February 6-28 and November 25 – December 13
- Zone 10-13: No freeze
Planting Zones by State
Simply match the state with the corresponding zone to find your state’s planting zone.
- Alabama: zones 7 to 9
- Alaska: zones 1 to 8
- Arizona: zones 4 to 10
- Arkansas: zones 6 to 8
- California: zones 5 to 10
- Colorado: zones 3 to 7
- Connecticut: zones 5 to 7
- Delaware: zone 7
- Florida: zones 8 to 11
- Georgia: zones 6 to 9
- Hawaii: zones 9 to 13
- Idaho: zones 3 to 7
- Illinois: zones 5 to 7
- Indiana: zones 5 to 6
- Iowa: zones 4 to 6
- Kansas: zones 5 to 7
- Kentucky: zones 6 to 7
- Louisiana: zones 8 to 10
- Maine: zones 3 to 6
- Maryland: zones 5 to 8
- Massachusetts: zones 5 to 7
- Michigan: zones 4 to 6
- Minnesota: zones 3 to 5
- Mississippi: zones 7 to 9
- Missouri: zones 5 to 7
- Montana: zones 3 to 6
- Nebraska: zones 4 to 5
- Nevada: zones 4 to 10
- New Hampshire: zones 3 to 6
- New Jersey: zones 6 to 7
- New Mexico: zones 4 to 9
- New York: zones 3 to 7
- North Carolina: zones 5 to 8
- North Dakota: zones 3 to 4
- Ohio: zones 5 to 6
- Oklahoma: zones 6 to 8
- Oregon: zones 4 to 9
- Pennsylvania: zones 5 to 7
- Rhode Island: zones 5 to 7
- South Carolina: zones 7 to 9
- South Dakota: zones 3 to 5
- Tennessee: zones 5 to 8
- Texas: zones 6 to 10
- Utah: zones 4 to 9
- Vermont: zones 3 to 5
- Virginia: zones 5 to 8
- Washington: zones 4 to 9
- West Virginia: zones 5 to 7
- Wisconsin: zones 3 to 5
- Wyoming: zones 3 to 6
