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When to Plant Beets in Frio County, TX

Frio County, Texas Zone 9a May

May in Frio County, Texas — your action list

Your garden in Frio County, Texas is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost February 26
Avg. first frost November 26
Soil temp (4") 63°F
Watering Low
Pest pressure High
Daylight 13.4 hrs

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Beets are a dual-purpose root vegetable with edible roots and nutritious greens. They come in red, golden, and striped varieties and are rich in vitamins and minerals.

Frio County, Texas is in USDA Zone 9a. The average last spring frost is February 26 and the first fall frost is November 26, giving you a growing season of approximately 273 days.

At an elevation of 3,892 feet, Frio County receives approximately 51 inches of rainfall annually with predominantly loam soil. Summer highs average 93°F, providing good warmth for Beets during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Beets root diseases.

Frio County, TX (Zone 9a) Year-round
273 days
Last Spring Frost February 26
273 growing days
First Fall Frost November 26
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Frio County Soil Profile

Soil Type

Loam

Soil pH

6.4-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (194 days to spare)
Transplant: Feb 13 🍅 Harvest: Apr 10 – May 8
Recommended (50%) ✓ Fits season (189 days to spare)
Transplant: Feb 26 🍅 Harvest: Apr 23 – May 21
Safe Start (90%) ✓ Fits season (182 days to spare)
Transplant: Mar 21 🍅 Harvest: May 16 – Jun 13

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 Frio County

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

Soil pH

Your soil pH (6.4–7.2) is within Beets's preferred range (6.0–7.5).

Soil Texture

The loam soil in Frio County is excellent for Beets — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Beets.

Organic Matter

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

How to Plant Beets

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

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

Succession Planting Beets

6
successive plantings in your 273-day season

Sow every 5.7 weeks. Last sowing by Sep 17 to harvest before frost.

For a dedicated fall crop, sow by Oct 01.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
0.8″/week
You supply
0.3″/week
Watering frequency Only during dry spells
Season total 630 gal / 100 sq ft

Monthly Watering Guide for Beets

Beets needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.

Month Beets Needs Rainfall You Supplement Action
Jan 1.2" 0" ❄️ Dormant
Feb 3.5" 1.9" 1.6" 💧 Light watering
Mar 3.5" 3.6" 0" ✅ Rainfall sufficient
Apr 3.5" 4.9" 0" ✅ Rainfall sufficient
May 3.5" 7.5" 0" ✅ Rainfall sufficient
Jun 3.5" 9.4" 0" ✅ Rainfall sufficient
Jul 3.5" 6.3" 0" ✅ Rainfall sufficient
Aug 3.5" 5.2" 0" ✅ Rainfall sufficient
Sep 3.5" 4.6" 0" ✅ Rainfall sufficient
Oct 3.5" 3.4" 0.1" 💧 Light watering
Nov 3.5" 1.6" 1.9" 🚿 Regular watering
Dec 1.4" 0" ❄️ Dormant

Water needs are for active growing months only (Feb–Nov in Frio County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Beets 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" — every day above 50°F 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.

Beets needs ~1,185 GDD — county provides 5,411 GDD Excellent fit

Beets Planting Timeline — Frio County, TX

Beets Planting Calendar

Activity When Date Range
Direct Sow February 5 Feb 5 – Feb 26
Harvest April 2 Apr 2 – Apr 30
Fall Sowing October 1 Oct 1 – Oct 15

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

Month-by-Month Timeline

MonthActivities
January
February Direct Sow
March
April Harvest
May
June
July
August
September
October Fall Sowing
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.8"/week · Only during dry spells

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 9a

📆 Growing Season

273 days in Frio County

Growing Tips for Beets in Frio County

Direct sow Beets outdoors after February 26 in Frio County when soil has warmed and frost danger has passed.

General growing tips

Soak seeds overnight before planting to improve germination. Thin seedlings to 3-4 inches apart. Harvest roots when 1.5-3 inches in diameter for best texture.

Companion Planting

Good Companions

Avoid Planting Near

  • Pole Beans
  • Mustard Greens

Check more plant combinations with our Companion Planting Checker →

🌾 Save Your Own Beets Seeds
Life Cycle Biennial
Pollination Wind Pollinated
How to Collect Replant roots for 2nd-year seeds. Rub stalks to free clusters.
Storage Store airtight; viable 6 years at 35°F, under 50% humidity.

Isolate 1/2 mile from Swiss chard — same species, they will cross.

Frequently Asked Questions

When should I plant Beets in Frio County, TX?

Frio County is in Zone 9a with an average last frost of February 26. Plan your Beets planting based on this frost date — see the calendar above for exact timing.

What planting zone is Frio County, TX?

Frio County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 26 and first fall frost is November 26.

🌱

Your Frio County Garden Planner — Free

A 24-page printable planner built for Frio County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Frio County, TX. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.