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When to Plant Basil in Kinney County, TX

Kinney County, Texas Zone 9a May

May to-do list for Kinney County, Texas

May is a pivotal month for Kinney County, Texas gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost February 22
Avg. first frost November 30
Soil temp (4") 73°F
Watering High
Pest pressure High
Daylight 13.5 hrs
  1. Start harvesting basil

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

June will be here before you know it — start on
  • First harvests: basil

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Basil is a fragrant warm-season herb essential to Italian and Thai cuisines. It comes in many varieties including sweet, Thai, purple, and lemon types.

Kinney County, Texas is in USDA Zone 9a. The average last spring frost is February 22 and the first fall frost is November 30, giving you a growing season of approximately 281 days.

At an elevation of 1,375 feet, Kinney County receives approximately 52.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 101°F, so Basil may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Basil will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Basil root diseases.

Kinney County, TX (Zone 9a) Year-round
281 days
Last Spring Frost February 22
281 growing days
First Fall Frost November 30

Kinney County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.4-8.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (159 days to spare)
Start indoors: Jan 2 Transplant: Feb 20 🍅 Harvest: Apr 17 – Jun 19
Recommended (50%) ✓ Fits season (155 days to spare)
Start indoors: Jan 11 Transplant: Mar 1 🍅 Harvest: Apr 26 – Jun 28
Safe Start (90%) ✓ Fits season (147 days to spare)
Start indoors: Feb 4 Transplant: Mar 25 🍅 Harvest: May 20 – Jul 22

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 Kinney County

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

Soil pH

Your soil pH (7.4–8.6) is more alkaline than Basil prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Kinney County warms quickly in spring but drains fast. Basil will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (1.1%). Add 2-3 inches of compost before planting Basil.

How to Plant Basil

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Succession Planting Basil

6
successive plantings in your 281-day season

Sow every 5.7 weeks. Last sowing by Sep 16 to harvest before frost.

Plant Water Budget

Plant needs
0.6″/week
Rainfall provides
0.8″/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 Basil

Basil needs approximately 0.6 inches of water per week (2.6" per month). Here's how your county's rainfall compares month by month.

Month Basil Needs Rainfall You Supplement Action
Jan 3.4" 0" ❄️ Dormant
Feb 2.6" 3.3" 0" ✅ Rainfall sufficient
Mar 2.6" 3" 0" ✅ Rainfall sufficient
Apr 2.6" 1.7" 0.9" 💧 Light watering
May 2.6" 1.3" 1.3" 🚿 Regular watering
Jun 2.6" 2" 0.6" 💧 Light watering
Jul 2.6" 8.2" 0" ✅ Rainfall sufficient
Aug 2.6" 10.4" 0" ✅ Rainfall sufficient
Sep 2.6" 7.6" 0" ✅ Rainfall sufficient
Oct 2.6" 4" 0" ✅ Rainfall sufficient
Nov 2.6" 3.4" 0" ✅ Rainfall sufficient
Dec 3.7" 0" ❄️ Dormant

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

Basil 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.

Basil needs ~1,609 GDD — county provides 7,261 GDD Excellent fit

Basil Planting Timeline — Kinney County, TX

Basil Planting Calendar

Activity When Date Range
Start Indoors January 11 Jan 11 – Jan 25
Transplant Outdoors March 1 Mar 1 – Mar 15
Direct Sow March 1 Mar 1 – Mar 22
Harvest April 26 Apr 26 – Jun 28

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.6"/week · Natural rainfall sufficient

📅 Days to Maturity

50–75 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 9a

📆 Growing Season

281 days in Kinney County

Growing Tips for Basil in Kinney County

Direct sow Basil outdoors after February 22 in Kinney County when soil has warmed and frost danger has passed.

Sandy soil in Kinney County dries quickly — mulch Basil with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 101°F in Kinney County, provide afternoon shade for Basil and water deeply in the morning.

General growing tips

Start seeds indoors or direct sow after last frost. Pinch flower buds to extend leaf production. Harvest leaves from the top down, cutting just above a leaf pair.

Recommended Basil Varieties for Kinney County

Downy mildew-resistant basil for your humid climate

Prospera (DM-resistant) Amazel Eleonora

Companion Planting

Good Companions

Avoid Planting Near

  • Rue
  • Sage

Check more plant combinations with our Companion Planting Checker →

🌾 Save Your Own Basil Seeds
Life Cycle Annual
Pollination Self-Pollinating
How to Collect Let flower spikes dry brown on the plant.
Storage Store airtight; viable 5 years at 35°F, under 45% humidity.

Isolate 150 ft between varieties. Different basil species can cross.

Frequently Asked Questions

When should I plant Basil in Kinney County, TX?

Kinney County is in Zone 9a with an average last frost of February 22. Plan your Basil planting based on this frost date — see the calendar above for exact timing.

What planting zone is Kinney County, TX?

Kinney County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 22 and first fall frost is November 30.

🌱

Your Kinney County Garden Planner — Free

A 24-page printable planner built for Kinney 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 Kinney 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.