When to plant tomatoes in Mississippi
Mississippi’s average last spring frost is March 20, and the first fall frost typically arrives around November 5 — about 230 frost-free days (USDA zones 7b, 8a, 8b, 9a). Tomato needs 60–85 days to mature, which fits comfortably within Mississippi's growing season.
When to plant tomatoes in Mississippi: the short answer
For a spring planting, plant out Mar 20 – Apr 6, with seeds started indoors Jan 23 – Feb 6. Wait until the soil is at least 50°F and frost is over.
Windows are ~1–2 week bands around each date. Frost dates are a statewide average from NOAA/NCEI normals; your town may differ by two weeks or more. Calendar year 2026.
How to grow tomatoes in Mississippi, step by step
- Start seeds indoors (Jan 23 – Feb 6). Sow seeds ¼ inch deep in seed-starting mix under bright light. They take 5-10 days to sprout, fastest in soil around 80°F. Harden seedlings off for a week before they go outside.
- Prepare the bed. They need at least six to eight hours of direct sun a day and loose soil at least 18 inches deep, with a pH between 5.5 and 7.5. Dig in compost before planting.
- Plant out (Mar 20 – Apr 6). Space plants about 24 inches apart in rows 36 inches apart. It is killed by frost, so nothing goes outside until the danger has passed.
- Water and feed. Give it steady, even moisture, about an inch of water a week from rain or the hose.
- Watch for pests and problems. Pests: tomato hornworm, aphids, whitefly, flea beetle. Diseases and disorders: early blight, late blight, septoria leaf spot, fusarium wilt, blossom-end rot (calcium disorder).
- Harvest (from about May 26 – Jun 20). Tomato takes 60-85 days to reach harvest. Days to maturity counted from transplant. Bury 2/3 of the stem at transplanting for extra roots. Determinate types suit containers and one big harvest; indeterminate types need staking and produce until frost.
Figures come from our crop data; dates use Mississippi’s average frost dates. More in the full tomato growing guide.
Tomato planting dates by USDA zone in Mississippi
Mississippi spans USDA zones 7b, 8a, 8b, 9a. Colder zones, usually higher or further inland, have a later last spring frost and an earlier first fall frost than the state average, so the tomato dates shift with them.
When to plant tomatoes in nearby states
Questions gardeners in Mississippi ask
When is the best time to plant tomatoes in Mississippi?
Plant tomato transplants outdoors in Mississippi between March 20 and April 6. That timing is set by Mississippi's average last spring frost of March 20.
When should I start tomato seeds indoors in Mississippi?
Start seeds indoors between January 23 and February 6, about 7 weeks before the last frost, so the seedlings are ready to plant out from March 20.
What is the latest I can plant tomatoes in Mississippi?
About September 6. Tomatoes need at least 60 days to mature after transplanting, and frost around November 5 ends the season, so later plantings risk being cut short.
When will tomatoes planted in Mississippi be ready to harvest?
Planted on time, tomatoes are usually ready from about May 26 to June 20, 60-85 days after transplanting.
When is the last frost in Mississippi?
On average around March 20, with the first fall frost around November 5 - about 230 frost-free days. Your town may differ by two weeks or more.