When to plant onions
Plant outside 2 weeks to 4 weeks before the last spring frost. Plant sets or transplants; pick long-day varieties in the North, short-day in the South.
Hardy: shrugs off frost.
Onions planting dates by state
| City | Plant outside |
|---|---|
| Birmingham, AL | Feb 16 – Mar 2 |
| Tucson, AZ | Jan 19 – Feb 2 |
| Little Rock, AR | Feb 18 – Mar 4 |
| Sacramento, CA | Jan 11 – Jan 25 |
| Denver, CO | Mar 28 – Apr 11 |
| Hartford, CT | Mar 12 – Mar 26 |
| Wilmington, DE | Mar 6 – Mar 20 |
| Washington, DC | Feb 26 – Mar 12 |
| Jacksonville, FL | Dec 27 – Jan 10 |
| Atlanta, GA | Feb 8 – Feb 22 |
| Boise, ID | Mar 23 – Apr 6 |
| Chicago, IL | Mar 9 – Mar 23 |
| Indianapolis, IN | Mar 13 – Mar 27 |
| Des Moines, IA | Mar 24 – Apr 7 |
| Wichita, KS | Mar 14 – Mar 28 |
| Louisville, KY | Mar 9 – Mar 23 |
| New Orleans, LA | Dec 26 – Jan 9 |
| Portland, ME | Mar 26 – Apr 9 |
| Baltimore, MD | Feb 26 – Mar 12 |
| Boston, MA | Mar 6 – Mar 20 |
| Detroit, MI | Mar 25 – Apr 8 |
| Minneapolis, MN | Mar 26 – Apr 9 |
| Jackson, MS | Jan 31 – Feb 14 |
| Kansas City, MO | Mar 12 – Mar 26 |
| Billings, MT | Apr 2 – Apr 16 |
| Omaha, NE | Mar 23 – Apr 6 |
| Las Vegas, NV | Jan 8 – Jan 22 |
| Manchester, NH | Mar 29 – Apr 12 |
| Newark, NJ | Mar 4 – Mar 18 |
| Albuquerque, NM | Mar 18 – Apr 1 |
| New York City, NY | Mar 3 – Mar 17 |
| Charlotte, NC | Feb 28 – Mar 14 |
| Fargo, ND | Apr 12 – Apr 26 |
| Columbus, OH | Mar 19 – Apr 2 |
| Oklahoma City, OK | Mar 3 – Mar 17 |
| Portland, OR | Feb 9 – Feb 23 |
| Philadelphia, PA | Mar 3 – Mar 17 |
| Providence, RI | Mar 10 – Mar 24 |
| Columbia, SC | Feb 9 – Feb 23 |
| Sioux Falls, SD | Mar 31 – Apr 14 |
| Nashville, TN | Mar 6 – Mar 20 |
| Dallas, TX | Jan 23 – Feb 6 |
| Salt Lake City, UT | Mar 10 – Mar 24 |
| Burlington, VT | Mar 25 – Apr 8 |
| Virginia Beach, VA | Feb 11 – Feb 25 |
| Seattle, WA | Feb 12 – Feb 26 |
| Charleston, WV | Mar 24 – Apr 7 |
| Milwaukee, WI | Mar 27 – Apr 10 |
| Cheyenne, WY | Apr 15 – Apr 29 |
Not your city? Every city planting calendar lists all 19 vegetables.
Helpful gear
Soil thermometerCheck the soil at 4 inches before you spread anything.See options on AmazonFrost clothCovers tender plants on a surprise frost night.See options on AmazonRain gaugeKnow whether the lawn already got its inch this week.See options on Amazon
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