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When to Plant Bok Choy in Uvalde County, TX

Uvalde County, Texas Zone 9a May

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Avg. last frost March 8
Avg. first frost November 14
Soil temp (4") 68°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Pick bok choy

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

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Bok choy is a Chinese cabbage variety with crisp white stalks and dark green leaves. It is a fast-growing cool-season crop ideal for stir-fries and soups.

Uvalde County, Texas is in USDA Zone 9a. The average last spring frost is March 8 and the first fall frost is November 14, giving you a growing season of approximately 251 days.

At an elevation of 2,809 feet, Uvalde County receives approximately 59.3 inches of rainfall annually with predominantly loam soil. Summer highs average 95°F, so Bok Choy may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Bok Choy root diseases.

Uvalde County, TX (Zone 9a) Long season
251 days
Last Spring Frost March 8
251 growing days
First Fall Frost November 14
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Uvalde County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (172 days to spare)
Start indoors: Feb 1 Transplant: Mar 1 🍅 Harvest: Apr 12 – May 17
Recommended (50%) ✓ Fits season (174 days to spare)
Start indoors: Feb 8 Transplant: Mar 8 🍅 Harvest: Apr 19 – May 24
Safe Start (90%) ✓ Fits season (159 days to spare)
Start indoors: Mar 16 Transplant: Apr 13 🍅 Harvest: May 25 – Jun 29

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 Uvalde County

How your county's soil matches Bok Choy's growing requirements.

Soil pH

Your soil pH (6.8–7.6) overlaps with Bok Choy's range (6.0–7.5), though not a perfect match.

Soil Texture

The loam soil in Uvalde County is excellent for Bok Choy — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Bok Choy.

How to Plant Bok Choy

1"
Planting Depth
15"
Between Plants
24"
Between Rows

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

Succession Planting Bok Choy

7
successive plantings in your 251-day season

Sow every 4.6 weeks. Last sowing by Sep 15 to harvest before frost.

For a dedicated fall crop, sow by Sep 19.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Bok Choy

Bok Choy needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.

Month Bok Choy Needs Rainfall You Supplement Action
Jan 1.7" 0" ❄️ Dormant
Feb 1.9" 0" ❄️ Dormant
Mar 3" 3.7" 0" ✅ Rainfall sufficient
Apr 3" 6.3" 0" ✅ Rainfall sufficient
May 3" 9.4" 0" ✅ Rainfall sufficient
Jun 3" 8.3" 0" ✅ Rainfall sufficient
Jul 3" 8.2" 0" ✅ Rainfall sufficient
Aug 3" 6.9" 0" ✅ Rainfall sufficient
Sep 3" 5.8" 0" ✅ Rainfall sufficient
Oct 3" 4.1" 0" ✅ Rainfall sufficient
Nov 3" 1.8" 1.2" 💧 Light watering
Dec 1.3" 0" ❄️ Dormant

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

Bok Choy 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.

Bok Choy needs ~1,062 GDD — county provides 5,333 GDD Excellent fit

Bok Choy Planting Timeline — Uvalde County, TX

Bok Choy Planting Calendar

Activity When Date Range
Start Indoors February 8 Feb 8 – Feb 22
Transplant Outdoors March 8 Mar 8 – Mar 22
Direct Sow February 15 Feb 15 – Mar 8
Harvest April 19 Apr 19 – May 24
Fall Sowing September 19 Sep 19 – Oct 3

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.7"/week · Natural rainfall sufficient

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 9a

📆 Growing Season

251 days in Uvalde County

Growing Tips for Bok Choy in Uvalde County

Direct sow Bok Choy outdoors after March 08 in Uvalde County when soil has warmed and frost danger has passed.

Your generous 251.0-day season in Uvalde County allows multiple plantings of Bok Choy. Sow every 20.0 days for continuous harvest.

Common pests for Bok Choy 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 spring or fall for best results. Keep soil consistently moist. Harvest whole heads or cut outer leaves for a cut-and-come-again approach.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Bok Choy in Uvalde County, TX?

Uvalde County is in Zone 9a with an average last frost of March 8. Plan your Bok Choy planting based on this frost date — see the calendar above for exact timing.

What planting zone is Uvalde County, TX?

Uvalde County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is March 8 and first fall frost is November 14.

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Your Uvalde County Garden Planner — Free

A 24-page printable planner built for Uvalde 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 Uvalde 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.