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When to Plant Alpine Strawberries in Guadalupe County, TX

Guadalupe County, Texas Zone 9a May

Your May gardening checklist

Here's what deserves your attention in Guadalupe County, Texas this month. Everything below is tailored to Zone 9a and timed around your local frost dates.

Avg. last frost March 7
Avg. first frost November 21
Soil temp (4") 63°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
Looking ahead to June
  • First harvests: alpine strawberries

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Alpine strawberries are small, intensely flavored wild-type strawberries that fruit continuously from spring to frost. They do not produce runners and make excellent edging plants.

Guadalupe County, Texas is in USDA Zone 9a. The average last spring frost is March 7 and the first fall frost is November 21, giving you a growing season of approximately 259 days.

At an elevation of 3,679 feet, Guadalupe County receives approximately 63 inches of rainfall annually with predominantly clay soil. Summer highs average 93°F, providing good warmth for Alpine Strawberries during the growing season. Clay soil retains moisture well for Alpine Strawberries, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Alpine Strawberries root diseases.

Guadalupe County, TX (Zone 9a) Long season
259 days
Last Spring Frost March 7
259 growing days
First Fall Frost November 21
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Guadalupe County Soil Profile

Soil Type

Clay

Soil pH

6.9-8.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (49 days to spare)
Transplant: Mar 13 🍅 Harvest: Jun 12 – Sep 25
Recommended (50%) ✓ Fits season (49 days to spare)
Transplant: Mar 21 🍅 Harvest: Jun 20 – Oct 3
Safe Start (90%) ✓ Fits season (39 days to spare)
Transplant: Apr 20 🍅 Harvest: Jul 20 – Nov 2

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 Guadalupe County

How your county's soil matches Alpine Strawberries's growing requirements.

Soil pH

Your soil pH (6.9–8.2) is more alkaline than Alpine Strawberries prefers (5.5–6.8). Add sulfur or peat moss to lower pH.

Soil Texture

Your clay soil in Guadalupe County is workable for Alpine Strawberries. Add compost annually to improve structure.

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Alpine Strawberries.

How to Plant Alpine Strawberries

12"
Between Plants
24"
Between Rows

Plant Water Budget

Plant needs
1.0″/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 Alpine Strawberries

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

Month Alpine Strawberries Needs Rainfall You Supplement Action
Jan 1.6" 0" ❄️ Dormant
Feb 2.1" 0" ❄️ Dormant
Mar 4.3" 4.4" 0" ✅ Rainfall sufficient
Apr 4.3" 6.5" 0" ✅ Rainfall sufficient
May 4.3" 9.5" 0" ✅ Rainfall sufficient
Jun 4.3" 9.3" 0" ✅ Rainfall sufficient
Jul 4.3" 8" 0" ✅ Rainfall sufficient
Aug 4.3" 7.1" 0" ✅ Rainfall sufficient
Sep 4.3" 6.4" 0" ✅ Rainfall sufficient
Oct 4.3" 4.5" 0" ✅ Rainfall sufficient
Nov 4.3" 1.9" 2.4" 🚿 Regular watering
Dec 1.6" 0" ❄️ Dormant

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

Alpine Strawberries 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.

Alpine Strawberries needs ~2,666 GDD — county provides 5,115 GDD Excellent fit

Alpine Strawberries Planting Timeline — Guadalupe County, TX

Alpine Strawberries Planting Calendar

Activity When Date Range
Transplant Outdoors March 21 Mar 21 – Apr 4
Harvest June 20 Jun 20 – Oct 3

· 12" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April Transplant Outdoors
May
June Harvest
July Harvest
August Harvest
September Harvest
October Harvest
November
December
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Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

90–180 days

🧪 Soil pH

Needs 5.5–6.8 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 9a

📆 Growing Season

259 days in Guadalupe County

Growing Tips for Alpine Strawberries in Guadalupe County

Direct sow Alpine Strawberries outdoors after March 07 in Guadalupe County when soil has warmed and frost danger has passed.

With Guadalupe County's clay soil (40% clay), work in 3-4 inches of compost before planting Alpine Strawberries. Avoid tilling when soil is wet to prevent compaction.

General growing tips

Start seeds indoors 8-10 weeks before transplanting. Unlike regular strawberries, alpines do not spread by runners. Harvest tiny, intensely aromatic berries frequently. Grow well in partial shade.

Companion Planting

Good Companions

Avoid Planting Near

  • Cabbage

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Alpine Strawberries in Guadalupe County, TX?

Guadalupe County is in Zone 9a with an average last frost of March 7. Plan your Alpine Strawberries planting based on this frost date — see the calendar above for exact timing.

What planting zone is Guadalupe County, TX?

Guadalupe County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is March 7 and first fall frost is November 21.

🌱

Your Guadalupe County Garden Planner — Free

A 24-page printable planner built for Guadalupe 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 Guadalupe 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.