Biloxi, MS planting zone & frost dates
Biloxi is in USDA hardiness zone 9a. The last spring frost usually comes around February 12 and the first fall frost around December 14, for a growing season of about 301 days.
Planting calendar for Biloxi
Dates are counted from the average last spring frost (February 12) using the typical timing recommended by U.S. extension services. Warm-season crops go out only after the danger of frost has passed and the soil has warmed.
| Crop | When |
|---|---|
| Tomatoes | Start seeds indoors: Dec 18 – Jan 1 Transplant outdoors: Feb 19 – Feb 26 |
| Peppers | Start seeds indoors: Dec 4 – Dec 18 Transplant outdoors: Feb 26 – Mar 5 |
| Eggplant | Start seeds indoors: Dec 4 – Dec 18 Transplant outdoors: Feb 26 – Mar 5 |
| Broccoli | Start seeds indoors: Dec 4 – Dec 18 Transplant outdoors: Jan 15 – Jan 29 |
| Cabbage | Start seeds indoors: Dec 4 – Dec 18 Transplant outdoors: Jan 15 – Jan 29 |
| Onions (sets) | Plant outdoors: Jan 15 – Jan 29 |
| Peas | Sow outdoors: Jan 1 – Jan 15 |
| Spinach | Sow outdoors: Jan 1 – Jan 15 |
| Lettuce | Sow outdoors: Jan 15 – Jan 29 |
| Carrots | Sow outdoors: Jan 15 – Jan 29 |
| Potatoes | Plant outdoors: Jan 15 – Jan 29 |
| Beans | Sow outdoors: Feb 19 – Feb 26 |
| Sweet corn | Sow outdoors: Feb 19 – Feb 26 |
| Cucumbers | Sow outdoors: Feb 19 – Feb 26 |
| Squash & zucchini | Sow outdoors: Feb 19 – Feb 26 |
| Basil | Start seeds indoors: Jan 1 – Jan 15 Transplant outdoors: Feb 19 – Feb 26 |
Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Oct 19 (8 weeks before the average first fall frost on Dec 14).
Useful for zone 9a gardens
- Seed starting kit with dome — to start seeds indoors before the last frost
- LED grow light for seedlings — stops leggy seedlings
- Frost cloth / plant covers — for late spring and early fall frosts
- Soil thermometer — warm-season crops need soil above 60°F
- Shade cloth — for hot summers
As an Amazon Associate, FrostZoneMap earns from qualifying purchases, at no extra cost to you.
Frost risk in detail
| 90% chance | 50% chance | 10% chance | |
|---|---|---|---|
| Last 32°F frost in spring is after | Jan 18 | Feb 12 | Mar 11 |
| First 32°F frost in fall is before | Jan 11 | Dec 14 | Nov 16 |
How to read it: in spring there is a 10% chance of a frost after March 11, so that is a safe date for tender plants. In fall there is a 10% chance of frost before November 16. A hard freeze (28°F) usually ends around January 27.
Hardiness zone by ZIP code in Biloxi
- 39530 zone 9a
- 39531 zone 9a
- 39532 zone 9a
- 39533 zone 9a
- 39534 zone 9a
- 39535 zone 9a
Nearby cities
- D'Iberville zone 9a, last frost Feb 12
- Ocean Springs zone 9a, last frost Feb 12
- West Gulfport zone 9a, last frost Feb 23
- Gulfport zone 9a, last frost Feb 18
- Long Beach zone 9a, last frost Feb 18
- Gautier zone 9a, last frost Mar 1
- Pascagoula zone 9a, last frost Mar 8
- Moss Point zone 9a, last frost Mar 8
Questions
What growing zone is Biloxi, MS?
Biloxi is in USDA Plant Hardiness Zone 9a (average extreme winter low 20°F to 25°F), according to the USDA 2023 map.
When is the last frost in Biloxi?
The average last spring frost (32°F) in Biloxi is February 12. There is still a 10% chance of frost until March 11.
When can I plant tomatoes in Biloxi?
Transplant tomatoes outdoors 1–2 weeks after the average last frost: around Feb 19 – Feb 26. Start seeds indoors 6–8 weeks before the last frost.
Frost dates: NOAA U.S. Climate Normals 1991–2020, station Biloxi, MS (USC00220792), 11.1 km (6.9 mi) from the city center, elevation 3 m, based on 29 years of records. Hardiness zone: USDA Plant Hardiness Zone Map 2023 for the ZIP code nearest to the city center. Microclimates (valleys, hills, cities, coasts) can be warmer or colder: check the local forecast before planting. How we calculate the data.