Root Vegetable

When to Plant Radishes in Mississippi

The fastest vegetable in the garden — some varieties are ready in just 25 days. Perfect for impatient gardeners and kids.

The Short Answer

In Mississippi, soil conditions are an important factor for radishes. Rich delta soils in west. Heavy clay in many areas. Sandy in pine belt. Acidic throughout. Direct sow 4 weeks before your last frost date. Radishes can also be planted in fall, 6 weeks before your first frost.

Mississippi Frost Dates

Your planting dates depend on which part of Mississippi you're in. Here are the frost date ranges by region:

Region Zones Last Frost (Spring) First Frost (Fall)
Northern Mississippi 7b, 8a Mar 15 - Apr 1 Nov 1 - Nov 15
Central Mississippi 8a, 8b Mar 1 - Mar 15 Nov 10 - Nov 25
Southern Mississippi 8b, 9a Feb 15 - Mar 5 Nov 15 - Dec 5

Radishes Planting Schedule for Mississippi

Northern Mississippi (Zones 7b, 8a)

Average last frost: Mar 15 - Apr 1 · Average first frost: Nov 1 - Nov 15

Direct Sow
4 wks before frost
Fall Planting
6 wks before first frost

Central Mississippi (Zones 8a, 8b)

Average last frost: Mar 1 - Mar 15 · Average first frost: Nov 10 - Nov 25

Direct Sow
4 wks before frost
Fall Planting
6 wks before first frost

Southern Mississippi (Zones 8b, 9a)

Average last frost: Feb 15 - Mar 5 · Average first frost: Nov 15 - Dec 5

Direct Sow
4 wks before frost
Fall Planting
6 wks before first frost

Growing Radishes in Mississippi

Radishes in Mississippi's Climate

Radishes are a cool-season sprint in warm climates — sow from October through February and harvest before spring warmth triggers bolting. Succession plant every 2 weeks during the cool window for multiple harvests. The quick maturity (22-30 days) means you can fit several rounds into even a short cool season.

Soil Considerations for Mississippi

Rich delta soils in west. Heavy clay in many areas. Sandy in pine belt. Acidic throughout. Loose, well-drained soil is especially important for radishes since the edible portion grows underground. If your soil is heavy clay, consider raised beds.

Mississippi Climate & Growing Season

Long growing season. Hot, humid summers. Mild winters. Two-season gardening possible. Radishes can handle frost well, which is an advantage in Mississippi's climate. You can push planting dates earlier in spring and extend into fall.

Growing season length varies across Mississippi: Northern Mississippi (7b, 8a) has a last frost around Mar 15 - Apr 1, while Southern Mississippi (8b, 9a) sees frost end around Feb 15 - Mar 5. This difference matters for radishes — but radishes handle frost well, so the timing difference is less critical.

Growing Tips

Don't let them stay in the ground too long — they get pithy and hot. Succession plant every 2 weeks for continuous harvest.

Companion Planting

Plant radishes alongside these companions for better growth:

Peas Lettuce Carrots Spinach

The Bottom Line

Radishes can be grown successfully across Mississippi, but your exact planting dates depend on which region you're in. Northern Mississippi gardeners should plan around a Mar 15 - Apr 1 last frost, while those in Southern Mississippi can typically plant earlier. For exact dates based on your zip code, use our free planting date finder.
Note: All dates are based on NOAA 30-year Climate Normals and represent historical averages, not predictions for any specific year. Always check your local weather forecast before planting frost-sensitive crops. Learn about our data sources.

Last reviewed: March 29, 2026

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