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When to Plant Shallot in McMullen 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.

McMullen County, Texas is in USDA Zone 9a. The average last spring frost is February 20 and the first fall frost is December 1, giving you a growing season of approximately 284 days.

At an elevation of 3,741 feet, McMullen County receives approximately 58 inches of rainfall annually with predominantly loam soil. Summer highs average 103ยฐF, so Shallot may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Shallot root diseases.

McMullen County, TX (Zone 9a) Year-round
284 days
Last Spring Frost February 20
284 growing days
First Fall Frost December 1

McMullen County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (154 days to spare)
Start indoors: Jan 6 Transplant: Feb 3 🍅 Harvest: May 5 – Jun 23
Recommended (50%) ✓ Fits season (144 days to spare)
Start indoors: Jan 23 Transplant: Feb 20 🍅 Harvest: May 22 – Jul 10
Safe Start (90%) ✓ Fits season (137 days to spare)
Start indoors: Feb 17 Transplant: Mar 17 🍅 Harvest: Jun 16 – Aug 4

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.

Soil Compatibility in McMullen County

How your county's soil matches Shallot's growing requirements.

Soil pH

Your soil pH (6.8โ€“7.2) overlaps with Shallot's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

The loam soil in McMullen County is excellent for Shallot โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Shallot.

How to Plant Shallot

1"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 442 gal / 100 sq ft
Drought risk

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

Shallot needs ~2,861 GDD — county provides 7,766 GDD Excellent fit

Shallot Planting Timeline โ€” McMullen County, TX

Shallot Planting Calendar

Activity When Date Range
Start Indoors January 23 Jan 23 โ€“ Feb 6
Transplant Outdoors February 20 Feb 20 โ€“ Mar 6
Direct Sow January 30 Jan 30 โ€“ Feb 20
Fall Sowing October 6 Oct 6 โ€“ Oct 20
Harvest May 22 May 22 โ€“ Jul 10

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

90โ€“120 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 9a

๐Ÿ“† Growing Season

284 days in McMullen County

Growing Tips for Shallot in McMullen County

Direct sow Shallot outdoors after February 20 in McMullen County when soil has warmed and frost danger has passed.

With summer highs reaching 103ยฐF in McMullen County, provide afternoon shade for Shallot and water deeply in the morning.

Common pests for Shallot in this region include onion maggots and thrips. Use row covers early in the season and inspect plants weekly.

General growing tips

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

Level Up Your Garden

Frequently Asked Questions

When should I plant Shallot in McMullen County, TX?

McMullen County is in Zone 9a with an average last frost of February 20. Plan your Shallot planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is McMullen County, TX?

McMullen County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 20 and first fall frost is December 1.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help McMullen County 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 McMullen County, TX. Local conditions may vary. Last updated: April 2026.