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When to Plant Turnip in Mason County, TX

Turnips are a fast-growing cool-season root vegetable with edible roots and greens. Baby turnips are sweet and tender while mature ones are more pungent.

Mason County, Texas is in USDA Zone 8a. The average last spring frost is March 25 and the first fall frost is November 11, giving you a growing season of approximately 231 days.

At an elevation of 4,557 feet, Mason County receives approximately 49.9 inches of rainfall annually with predominantly loam soil. Summer highs average 91ยฐF, providing good warmth for Turnip during the growing season.

Mason County, TX (Zone 8a) Long season
231 days
Last Spring Frost March 25
231 growing days
First Fall Frost November 11

Mason County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (154 days to spare)
Transplant: Mar 13 🍅 Harvest: Apr 24 – May 29
Recommended (50%) ✓ Fits season (154 days to spare)
Transplant: Mar 25 🍅 Harvest: May 6 – Jun 10
Safe Start (90%) ✓ Fits season (150 days to spare)
Transplant: Apr 15 🍅 Harvest: May 27 – Jul 1

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 Mason County

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

Soil pH

Your soil pH (6.5โ€“7.5) overlaps with Turnip's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Turnip.

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Turnip.

How to Plant Turnip

0.5"
Planting Depth
4"
Between Plants
12"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Turnip

6
successive plantings in your 231-day season

Sow every 4.6 weeks. Last sowing by Sep 12 to harvest before frost.

For a dedicated fall crop, sow by Sep 02.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 807 gal / 100 sq ft

Monthly Watering Guide for Turnip

Turnip needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Turnip Needs Rainfall You Supplement Action
Jan โ€” 1.3" 0" โ„๏ธ Dormant
Feb โ€” 1.9" 0" โ„๏ธ Dormant
Mar 4.3" 2.9" 1.4" ๐Ÿ’ง Light watering
Apr 4.3" 4.6" 0" โœ… Rainfall sufficient
May 4.3" 7.7" 0" โœ… Rainfall sufficient
Jun 4.3" 8.3" 0" โœ… Rainfall sufficient
Jul 4.3" 6" 0" โœ… Rainfall sufficient
Aug 4.3" 6.3" 0" โœ… Rainfall sufficient
Sep 4.3" 4.8" 0" โœ… Rainfall sufficient
Oct 4.3" 3.4" 0.9" ๐Ÿ’ง Light watering
Nov 4.3" 1.5" 2.8" ๐Ÿšฟ Regular watering
Dec โ€” 1.4" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Mason County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Turnip Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" โ€” every day above 50ยฐF deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Turnip needs ~912 GDD — county provides 4,215 GDD Excellent fit

Turnip Planting Timeline โ€” Mason County, TX

Turnip Planting Calendar

Activity When Date Range
Direct Sow March 11 Mar 11 โ€“ Apr 1
Harvest April 22 Apr 22 โ€“ May 27
Fall Sowing September 2 Sep 2 โ€“ Sep 16

Plant 0.5" deep ยท 4" apart ยท Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1"/week ยท 1-2 times/week

๐Ÿ“… Days to Maturity

40โ€“60 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

231 days in Mason County

Growing Tips for Turnip in Mason County

Direct sow Turnip outdoors after March 25 in Mason County when soil has warmed and frost danger has passed.

Your generous 231.0-day season in Mason County allows multiple plantings of Turnip. Sow every 20.0 days for continuous harvest.

Common pests for Turnip in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow in early spring or late summer. Harvest when roots are 2-3 inches in diameter for best flavor. Both the roots and the greens are nutritious and edible.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Turnip in Mason County, TX?

Mason County is in Zone 8a with an average last frost of March 25. Plan your Turnip planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Mason County, TX?

Mason County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 25 and first fall frost is November 11.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Mason County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

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