Blog

When to Plant Beets in Bexar County, TX

Bexar County, Texas Zone 9a May

Top priorities for Bexar County, Texas gardeners in May

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost March 11
Avg. first frost November 17
Soil temp (4") 64°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Collect beets at their peak

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

Instant PDF download. No spam, unsubscribe any time.

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.

Bexar County, Texas is in USDA Zone 9a. The average last spring frost is March 11 and the first fall frost is November 17, giving you a growing season of approximately 251 days.

At an elevation of 3,197 feet, Bexar County receives approximately 52.1 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.

Bexar County, TX (Zone 9a) Long season
251 days
Last Spring Frost March 11
251 growing days
First Fall Frost November 17

Bexar County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (172 days to spare)
Transplant: Mar 1 🍅 Harvest: Apr 26 – May 24
Recommended (50%) ✓ Fits season (167 days to spare)
Transplant: Mar 11 🍅 Harvest: May 6 – Jun 3
Safe Start (90%) ✓ Fits season (164 days to spare)
Transplant: Apr 7 🍅 Harvest: Jun 2 – Jun 30

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 Bexar County

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

Soil pH

Your soil pH (6.5–7.8) overlaps with Beets's range (6.0–7.5), though not a perfect match.

Soil Texture

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

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 251-day season

Sow every 5.7 weeks. Last sowing by Sep 08 to harvest before frost.

For a dedicated fall crop, sow by Sep 22.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 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 1.4" 0" ❄️ Dormant
Feb 1.7" 0" ❄️ Dormant
Mar 3.5" 3.6" 0" ✅ Rainfall sufficient
Apr 3.5" 5.6" 0" ✅ Rainfall sufficient
May 3.5" 7.5" 0" ✅ Rainfall sufficient
Jun 3.5" 8.2" 0" ✅ Rainfall sufficient
Jul 3.5" 6.3" 0" ✅ Rainfall sufficient
Aug 3.5" 6.3" 0" ✅ Rainfall sufficient
Sep 3.5" 4.9" 0" ✅ Rainfall sufficient
Oct 3.5" 3.5" 0" ✅ Rainfall sufficient
Nov 3.5" 1.9" 1.6" 💧 Light watering
Dec 1.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Bexar 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 4,957 GDD Excellent fit

Beets Planting Timeline — Bexar County, TX

Beets Planting Calendar

Activity When Date Range
Direct Sow February 18 Feb 18 – Mar 11
Harvest April 15 Apr 15 – May 13
Fall Sowing September 22 Sep 22 – Oct 6

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.8"/week · Natural rainfall sufficient

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 9a

📆 Growing Season

251 days in Bexar County

Growing Tips for Beets in Bexar County

Direct sow Beets outdoors after March 11 in Bexar 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 Bexar County, TX?

Bexar County is in Zone 9a with an average last frost of March 11. Plan your Beets planting based on this frost date — see the calendar above for exact timing.

What planting zone is Bexar County, TX?

Bexar County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is March 11 and first fall frost is November 17.

🌱

Your Bexar County Garden Planner — Free

A 24-page printable planner built for Bexar 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.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Bexar 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.