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When to Plant Blackberries in Jim Hogg County, TX

Blackberries are vigorous bramble fruits that produce sweet-tart berries on thorny or thornless canes. They are prolific producers and relatively low-maintenance once established.

Jim Hogg County, Texas is in USDA Zone 9a. The average last spring frost is February 16 and the first fall frost is December 5, giving you a growing season of approximately 292 days.

At an elevation of 4,270 feet, Jim Hogg County receives approximately 59.4 inches of rainfall annually with predominantly loam soil. Summer highs average 96ยฐF, so Blackberries may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Blackberries root diseases.

Jim Hogg County, TX (Zone 9a) Year-round
292 days
Last Spring Frost February 16
292 growing days
First Fall Frost December 5

Jim Hogg County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Feb 9
Recommended (50%) ✓ Fits season
Transplant: Mar 2
Safe Start (90%) ✓ Fits season
Transplant: Mar 31

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.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 387 gal / 100 sq ft
Blackberries needs ~12,045 GDD — county provides 6,446 GDD May not mature

Blackberries Planting Timeline โ€” Jim Hogg County, TX

Blackberries Planting Calendar

Activity When Date Range
Transplant Outdoors March 2 Mar 2 โ€“ Mar 16

ยท 24" apart ยท Rows 72" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Transplant Outdoors
April โ€”
May โ€”
June โ€”
July โ€”
August โ€”
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

365โ€“730 days

Soil pH

5.5 โ€“ 7

USDA Zone

Zone 9a

Growing Season

292 days

Growing Tips for Jim Hogg County

Plant bare-root canes in spring. Provide a sturdy trellis system. Prune out spent fruiting canes after harvest. New canes fruit in their second year (floricanes).

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Peppers

Level Up Your Garden

Frequently Asked Questions

When should I plant Blackberries in Jim Hogg County, TX?

Jim Hogg County is in Zone 9a with an average last frost of February 16. Plan your Blackberries planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Jim Hogg County, TX?

Jim Hogg County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 16 and first fall frost is December 5.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Jim Hogg County gardeners in Zone 9a organize planting dates, track what's growing, and never miss a planting window.

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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 Jim Hogg County, TX. Local conditions may vary. Last updated: April 2026.