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When to Plant Shallot in Madison County, TX

Shallots are a gourmet allium prized for their complex, sweet, and mild flavor. Each bulb multiplies into a cluster, making them easy and rewarding to grow.

Madison County, Texas is in USDA Zone 8b. The average last spring frost is March 5 and the first fall frost is November 20, giving you a growing season of approximately 260 days.

At an elevation of 122 feet, Madison County receives approximately 57.5 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 91ยฐF, providing good warmth for Shallot during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Shallot will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Shallot root diseases.

Madison County, TX (Zone 8b) Long season
260 days
Last Spring Frost March 5
260 growing days
First Fall Frost November 20

Madison County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.5-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (126 days to spare)
Start indoors: Jan 16 Transplant: Feb 20 🍅 Harvest: May 22 – Jul 10
Recommended (50%) ✓ Fits season (120 days to spare)
Start indoors: Jan 29 Transplant: Mar 5 🍅 Harvest: Jun 4 – Jul 23
Safe Start (90%) ✓ Fits season (109 days to spare)
Start indoors: Mar 2 Transplant: Apr 6 🍅 Harvest: Jul 6 – Aug 24

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
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 198 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Shallot needs ~1,916 GDD — county provides 4,745 GDD Excellent fit

Shallot Planting Timeline โ€” Madison County, TX

Shallot Planting Calendar

Activity When Date Range
Start Indoors January 29 Jan 29 โ€“ Feb 12
Transplant Outdoors March 5 Mar 5 โ€“ Mar 19
Direct Sow February 19 Feb 19 โ€“ Mar 12
Fall Sowing September 11 Sep 11 โ€“ Sep 25
Harvest June 4 Jun 4 โ€“ Jul 23

Plant 1" deep ยท 6" apart ยท Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

90โ€“120 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 8b

Growing Season

260 days

Growing Tips for Madison County

Plant sets in fall for spring harvest or early spring for summer harvest. Mulch heavily if overwintering. Harvest when tops brown and dry, then cure for storage.

Companion Planting

Good Companions

Avoid Planting Near

  • Peas
  • Green Beans

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Frequently Asked Questions

When should I plant Shallot in Madison County, TX?

Madison County is in Zone 8b with an average last frost of March 5. Plan your Shallot planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Madison County, TX?

Madison County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 5 and first fall frost is November 20.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Madison County gardeners in Zone 8b 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 Madison County, TX. Local conditions may vary. Last updated: April 2026.