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When to Plant Serviceberries in La Salle County, TX

La Salle County, Texas Zone 9a May

Top priorities for La Salle County, Texas gardeners in May

Each item below is timed to La Salle County, Texas's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost February 14
Avg. first frost December 3
Soil temp (4") 67°F
Watering Low
Pest pressure High
Daylight 13.4 hrs

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Serviceberries (saskatoons) are attractive native shrubs or small trees producing sweet, blueberry-like fruits. They have beautiful spring flowers and vibrant fall color.

La Salle County, Texas is in USDA Zone 9a. The average last spring frost is February 14 and the first fall frost is December 3, giving you a growing season of approximately 292 days.

At an elevation of 2,270 feet, La Salle County receives approximately 57.2 inches of rainfall annually with predominantly loam soil. Summer highs average 92°F, providing good warmth for Serviceberries during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Serviceberries root diseases.

La Salle County, TX (Zone 9a) Year-round
292 days
Last Spring Frost February 14
292 growing days
First Fall Frost December 3
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La Salle County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Feb 13
Recommended (50%) ✓ Fits season
Transplant: Feb 28
Safe Start (90%) ✓ Fits season
Transplant: Mar 28

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 La Salle County

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

Soil pH

Your soil pH (6.5–7.6) is more alkaline than Serviceberries prefers (5.5–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in La Salle County is excellent for Serviceberries — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Serviceberries.

Organic Matter

Organic matter is moderate (2.0%). Annual compost additions will help Serviceberries.

How to Plant Serviceberries

120"
Between Plants
144"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 1,252 gal / 100 sq ft

Monthly Watering Guide for Serviceberries

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

Month Serviceberries Needs Rainfall You Supplement Action
Jan 1.5" 0" ❄️ Dormant
Feb 4.3" 2" 2.3" 🚿 Regular watering
Mar 4.3" 3.4" 0.9" 💧 Light watering
Apr 4.3" 5.5" 0" ✅ Rainfall sufficient
May 4.3" 7.4" 0" ✅ Rainfall sufficient
Jun 4.3" 10.2" 0" ✅ Rainfall sufficient
Jul 4.3" 7.3" 0" ✅ Rainfall sufficient
Aug 4.3" 7" 0" ✅ Rainfall sufficient
Sep 4.3" 5.8" 0" ✅ Rainfall sufficient
Oct 4.3" 3.6" 0.7" 💧 Light watering
Nov 4.3" 2" 2.3" 🚿 Regular watering
Dec 4.3" 1.6" 2.7" 🚿 Regular watering

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

Serviceberries 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.

Serviceberries needs ~17,338 GDD — county provides 5,567 GDD May not mature

Serviceberries Planting Timeline — La Salle County, TX

Serviceberries Planting Calendar

Activity When Date Range
Transplant Outdoors February 28 Feb 28 – Mar 14

· 120" apart · Rows 144" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

730–1095 days

🧪 Soil pH

Needs 5.5–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 9a

📆 Growing Season

292 days in La Salle County

Growing Tips for Serviceberries in La Salle County

Direct sow Serviceberries outdoors after February 14 in La Salle County when soil has warmed and frost danger has passed.

Your 293.0-day growing season in La Salle County is tight for Serviceberries (730.0-1095.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant in well-drained soil. Minimal pruning needed beyond removing dead wood. Protect fruit from birds with netting. Berries ripen in early summer and are excellent fresh or in pies.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Serviceberries in La Salle County, TX?

La Salle County is in Zone 9a with an average last frost of February 14. Plan your Serviceberries planting based on this frost date — see the calendar above for exact timing.

What planting zone is La Salle County, TX?

La Salle County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 14 and first fall frost is December 3.

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Your La Salle County Garden Planner — Free

A 24-page printable planner built for La Salle 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 La Salle 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.