Broussard, LA planting zone & frost dates
Broussard is in USDA hardiness zone 9a. The last spring frost usually comes around February 13 and the first fall frost around December 4, for a growing season of about 299 days.
Planting calendar for Broussard
Dates are counted from the average last spring frost (February 13) 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 19 – Jan 2 Transplant outdoors: Feb 20 – Feb 27 |
| Peppers | Start seeds indoors: Dec 5 – Dec 19 Transplant outdoors: Feb 27 – Mar 6 |
| Eggplant | Start seeds indoors: Dec 5 – Dec 19 Transplant outdoors: Feb 27 – Mar 6 |
| Broccoli | Start seeds indoors: Dec 5 – Dec 19 Transplant outdoors: Jan 16 – Jan 30 |
| Cabbage | Start seeds indoors: Dec 5 – Dec 19 Transplant outdoors: Jan 16 – Jan 30 |
| Onions (sets) | Plant outdoors: Jan 16 – Jan 30 |
| Peas | Sow outdoors: Jan 2 – Jan 16 |
| Spinach | Sow outdoors: Jan 2 – Jan 16 |
| Lettuce | Sow outdoors: Jan 16 – Jan 30 |
| Carrots | Sow outdoors: Jan 16 – Jan 30 |
| Potatoes | Plant outdoors: Jan 16 – Jan 30 |
| Beans | Sow outdoors: Feb 20 – Feb 27 |
| Sweet corn | Sow outdoors: Feb 20 – Feb 27 |
| Cucumbers | Sow outdoors: Feb 20 – Feb 27 |
| Squash & zucchini | Sow outdoors: Feb 20 – Feb 27 |
| Basil | Start seeds indoors: Jan 2 – Jan 16 Transplant outdoors: Feb 20 – Feb 27 |
Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Oct 9 (8 weeks before the average first fall frost on Dec 4).
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
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Frost risk in detail
| 90% chance | 50% chance | 10% chance | |
|---|---|---|---|
| Last 32°F frost in spring is after | Jan 13 | Feb 13 | Mar 10 |
| First 32°F frost in fall is before | Jan 5 | Dec 4 | Nov 13 |
How to read it: in spring there is a 10% chance of a frost after March 10, so that is a safe date for tender plants. In fall there is a 10% chance of frost before November 13. A hard freeze (28°F) usually ends around January 27.
Hardiness zone by ZIP code in Broussard
- 70518 zone 9a
Nearby cities
- Youngsville zone 9a, last frost Feb 19
- Lafayette zone 9a, last frost Feb 13
- New Iberia zone 9b, last frost Feb 10
- Abbeville zone 9a, last frost Feb 17
- Opelousas zone 9a, last frost Feb 28
- Crowley zone 9a, last frost Feb 20
- Eunice zone 9a, last frost Feb 26
- Jennings zone 9a, last frost Feb 19
Questions
What growing zone is Broussard, LA?
Broussard 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 Broussard?
The average last spring frost (32°F) in Broussard is February 13. There is still a 10% chance of frost until March 10.
When can I plant tomatoes in Broussard?
Transplant tomatoes outdoors 1–2 weeks after the average last frost: around Feb 20 – Feb 27. Start seeds indoors 6–8 weeks before the last frost.
Frost dates: NOAA U.S. Climate Normals 1991–2020, station Lafayette Rgnl Ap, LA (USW00013976), 6.9 km (4.3 mi) from the city center, elevation 12 m, based on 30 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.