Blog

When to Plant Cranberries in Lamar County, TX

Cranberries are low-growing, vine-like shrubs that produce tart red berries in fall. They grow in acidic, boggy conditions and are surprisingly easy to cultivate.

Lamar County, Texas is in USDA Zone 7b. The average last spring frost is March 15 and the first fall frost is November 15, giving you a growing season of approximately 245 days.

At an elevation of 95 feet, Lamar County receives approximately 59.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 91Β°F, providing good warmth for Cranberries during the growing season. Sandy soil warms quickly in spring β€” great for early planting β€” but Cranberries will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cranberries root diseases.

Lamar County, TX (Zone 7b) Long season
245 days
Last Spring Frost March 15
245 growing days
First Fall Frost November 15

Lamar County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.8-6.8

Drainage

Well Drained

Monthly Watering Guide for Cranberries

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

Month Cranberries Needs Rainfall You Supplement Action
Jan β€” 1.7" 0" ❄️ Dormant
Feb β€” 2.1" 0" ❄️ Dormant
Mar 4.3" 3.5" 0.8" πŸ’§ Light watering
Apr 4.3" 6.8" 0" βœ… Rainfall sufficient
May 4.3" 8.8" 0" βœ… Rainfall sufficient
Jun 4.3" 9.7" 0" βœ… Rainfall sufficient
Jul 4.3" 8" 0" βœ… Rainfall sufficient
Aug 4.3" 7.1" 0" βœ… Rainfall sufficient
Sep 4.3" 5.3" 0" βœ… Rainfall sufficient
Oct 4.3" 3.4" 0.9" πŸ’§ Light watering
Nov 4.3" 2.2" 2.1" πŸ’§ Light watering
Dec β€” 1.4" 0" ❄️ Dormant

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

Cranberries Planting Timeline β€” Lamar County, TX

Cranberries Planting Calendar

Activity When Date Range
Transplant Outdoors April 5 Apr 5 – Apr 19

Β· 36" apart Β· Rows 48" apart

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

High β€” keep soil consistently moist

πŸ“… Days to Maturity

730–1095 days

πŸ§ͺ Soil pH

Needs 4–5.5 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 7b

πŸ“† Growing Season

245 days in Lamar County

Growing Tips for Lamar County

Create an acidic, consistently moist bed with peat moss. Cranberries do not need to be flooded to grow; flooding is only used for commercial harvesting. Mulch with sand in early spring.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cranberries in Lamar County, TX?

Lamar County is in Zone 7b with an average last frost of March 15. Plan your Cranberries planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Lamar County, TX?

Lamar County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 15 and first fall frost is November 15.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Lamar County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Lamar County, TX. Local conditions may vary. Last updated: April 2026.