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When to Plant Chard in Terrebonne Parish, LA

Swiss chard is a colorful, heat-tolerant green with large crinkled leaves and vibrant stalks in red, yellow, and white. Both the leaves and stems are edible and nutritious.

Terrebonne Parish, Louisiana is in USDA Zone 9a. The average last spring frost is February 7 and the first fall frost is December 8, giving you a growing season of approximately 304 days.

At an elevation of 484 feet, Terrebonne Parish receives approximately 61.9 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 102ยฐF, so Chard may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Chard will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Chard root diseases.

Terrebonne Parish, LA (Zone 9a) Year-round
304 days
Last Spring Frost February 7
304 growing days
First Fall Frost December 8

Terrebonne Parish Soil Profile

Soil Type

Sandy Loam

Soil pH

5.1-6.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (206 days to spare)
Start indoors: Dec 28 Transplant: Jan 25 🍅 Harvest: Mar 22 – May 10
Recommended (50%) ✓ Fits season (199 days to spare)
Start indoors: Jan 10 Transplant: Feb 7 🍅 Harvest: Apr 4 – May 23
Safe Start (90%) ✓ Fits season (184 days to spare)
Start indoors: Feb 8 Transplant: Mar 8 🍅 Harvest: May 3 – Jun 21

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Chard needs ~1,458 GDD — county provides 8,082 GDD Excellent fit

Chard Planting Timeline โ€” Terrebonne Parish, LA

Chard Planting Calendar

Activity When Date Range
Start Indoors January 10 Jan 10 โ€“ Jan 24
Transplant Outdoors February 7 Feb 7 โ€“ Feb 21
Direct Sow January 17 Jan 17 โ€“ Feb 7
Fall Sowing October 13 Oct 13 โ€“ Oct 27
Harvest April 4 Apr 4 โ€“ May 23

Plant 1" deep ยท 15" apart ยท Rows 24" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors Direct Sow
February Transplant Outdoors Direct Sow
March โ€”
April Harvest
May Harvest
June โ€”
July โ€”
August โ€”
September โ€”
October Fall Sowing
November โ€”
December โ€”

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

Moderate โ€” regular watering

Days to Maturity

50โ€“60 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 9a

Growing Season

304 days

Growing Tips for Terrebonne Parish

Direct sow or transplant after last frost. Harvest outer leaves regularly to encourage continuous production. Chard tolerates both heat and light frost.

Companion Planting

Good Companions

Avoid Planting Near

  • Corn
  • Cucumbers

Level Up Your Garden

Frequently Asked Questions

When should I plant Chard in Terrebonne Parish, LA?

Terrebonne Parish is in Zone 9a with an average last frost of February 7. Plan your Chard planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Terrebonne Parish, LA?

Terrebonne Parish, Louisiana is in USDA Hardiness Zone 9a. The average last spring frost is February 7 and first fall frost is December 8.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Terrebonne Parish gardeners in Zone 9a organize planting dates, track what's growing, and never miss a planting window.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Terrebonne Parish, LA. Local conditions may vary. Last updated: April 2026.