When to Plant Broccoli in Louisiana
Published: April 21, 2026
Louisiana gardeners in Zone 8b enjoy an extended 45-week growing season for broccoli. Cool-season crops like broccoli do best in fall, winter, and early spring in Louisiana — the hot summers bolt these plants before they can be harvested. This guide gives exact dates for Louisiana based on your local frost calendar.
Broccoli Planting Dates for Louisiana
| Start seeds indoors | December 21–28 |
| Last frost (average) | February 1 |
| Transplant outdoors | January 4–14 |
| Direct sow outdoors | January 4–14 |
| Expect first harvest | March 5 – March 25 |
| Fall crop start | October 6–16 |
| Fall harvest | December 5 |
| First fall frost (average) | December 15 |
Dates above assume Zone 8b, the most common zone in Louisiana. Gardeners in cooler New Orleans (Zone 8b) plant 1–2 weeks later; warmer Shreveport (Zone 8a) can plant 1–2 weeks earlier.
Growing Broccoli in Louisiana's Climate
Louisiana's warm Zone 8b climate makes broccoli a fall, winter, and early spring crop rather than a summer one. The cool-season window runs roughly October through April in Louisiana — plant outside this window and the broccoli will bolt (send up a flower stalk and turn bitter) before it produces a harvestable crop.
Succession planting stretches the broccoli harvest window. Sow small amounts every two weeks from October through February — you will have staggered harvests rather than a single wave to process all at once. Bolt-resistant varieties extend the usable window an extra three to four weeks into warming weather.
Common broccoli pests to watch for in Louisiana include Cabbage Worm and Cabbage Looper. The first line of defense is companion planting: Onion and Garlic planted nearby discourage several of these pests by confusing host-plant identification or repelling adults before they can lay eggs. Weekly garden walks in the early morning catch problems when they're still manageable.
Broccoli Garden Calendar for Louisiana
| Month | Task | Notes |
|---|---|---|
| January | Transplant outdoors | Soil temp must be 40°F+; nighttime lows above 50°F |
| February | Harden off seedlings | Set seedlings outdoors 1–2 hours daily, increasing gradually |
| March | First harvest window opens | Broccoli begins producing 60–80 days after transplant |
| April | — | Off-season |
| May ← | Watch for bolting | Harvest promptly; spring heat arrives quickly |
| June | — | Off-season |
| July | — | Off-season |
| August | — | Off-season |
| September | — | Off-season |
| October | Fall crop planting | Transplant or direct sow for fall harvest before frost |
| November | — | Off-season |
| December | Start seeds indoors | Use grow lights; warm soil to 70–75°F for best germination |
Broccoli Growing Tips for Louisiana Gardeners
- •For spring: start indoors 6 weeks before last frost and transplant outdoors 4 weeks before last frost.
- •For fall: start indoors in summer — count 10 weeks back from your first fall frost date.
- •Louisiana's cool-season broccoli plants best in October, November, and December for winter and early spring harvest. Spring plantings bolt before producing a harvestable crop.
- •Harvest heads before any yellow flowers open — once flowers show, flavor declines quickly.
Companion Planting for Broccoli in Louisiana
In Louisiana's warm climate, planting broccoli with Onion and Garlic helps deter pests and improve soil. Avoid planting near Tomato and Pepper, which inhibit broccoli growth through root chemistry or shared pest pressure. See the full broccoli companion planting guide for the complete list.
Broccoli Planting Dates by City in Louisiana
Top cities in Louisiana — select for city-level frost dates and planting calendars.
Frequently Asked Questions
When should I plant broccoli in Louisiana?
In Louisiana (Zone 8b), start broccoli seeds indoors around December 21–28 and transplant outdoors around January 4–14 — 4 weeks before the state's average last frost of February 1.
What is the last frost date in Louisiana?
Louisiana's average last frost date is February 1 in the state's most common Zone 8b. Frost dates vary by city — higher elevations and northern counties run 1 to 3 weeks later than the state average. See the city list below for city-level frost dates.
Can I grow broccoli year-round in Louisiana?
broccoli is a cool-season crop in Louisiana, with spring and fall windows. Summer heat bolts the plants before they can produce a harvestable crop. Succession planting every 2–3 weeks stretches the harvest window.
What broccoli varieties grow best in Louisiana?
For Louisiana's Zone 8b, Calabrese and Packman resist bolting in brief warm spells during the cool-season window.
When do I start broccoli seeds indoors in Louisiana?
Start broccoli seeds indoors in Louisiana around December 21–28, which is 6 weeks before the state's average last frost of February 1. Use grow lights and keep soil temperatures at 70–75°F for fastest germination.