Blog

When to Plant Borage in Cottle County, TX

Borage is a self-seeding annual herb with star-shaped blue flowers that attract pollinators. Its leaves have a cucumber-like flavor and the flowers are edible.

Cottle County, Texas is in USDA Zone 7b. The average last spring frost is March 30 and the first fall frost is November 9, giving you a growing season of approximately 224 days.

At an elevation of 3,553 feet, Cottle County receives approximately 59.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 97ยฐF, so Borage may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Borage will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Borage root diseases.

Cottle County, TX (Zone 7b) Long season
224 days
Last Spring Frost March 30
224 growing days
First Fall Frost November 9

Cottle County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.5-8.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (126 days to spare)
Start indoors: Feb 14 Transplant: Mar 14 🍅 Harvest: May 9 – Jun 27
Recommended (50%) ✓ Fits season (126 days to spare)
Start indoors: Feb 23 Transplant: Mar 23 🍅 Harvest: May 18 – Jul 6
Safe Start (90%) ✓ Fits season (124 days to spare)
Start indoors: Mar 10 Transplant: Apr 7 🍅 Harvest: Jun 2 – Jul 21

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 Cottle County

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

Soil pH

Your soil pH (7.5โ€“8.9) is more alkaline than Borage prefers (6.0โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Cottle County warms quickly in spring but drains fast. Borage 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 Borage.

How to Plant Borage

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Borage

5
successive plantings in your 224-day season

Sow every 5.7 weeks. Last sowing by Sep 10 to harvest before frost.

For a dedicated fall crop, sow by Aug 31.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 8/10 โ€” consider drought-tolerant varieties and mulching

Monthly Watering Guide for Borage

Borage needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Borage Needs Rainfall You Supplement Action
Jan โ€” 3.9" 0" โ„๏ธ Dormant
Feb โ€” 3.2" 0" โ„๏ธ Dormant
Mar 2.2" 3" 0" โœ… Rainfall sufficient
Apr 2.2" 2.2" 0" โœ… Rainfall sufficient
May 2.2" 1.2" 1" ๐Ÿ’ง Light watering
Jun 2.2" 2.2" 0" โœ… Rainfall sufficient
Jul 2.2" 10.4" 0" โœ… Rainfall sufficient
Aug 2.2" 13.2" 0" โœ… Rainfall sufficient
Sep 2.2" 7.9" 0" โœ… Rainfall sufficient
Oct 2.2" 4.8" 0" โœ… Rainfall sufficient
Nov 2.2" 3.1" 0" โœ… Rainfall sufficient
Dec โ€” 4.3" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Cottle County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Borage 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" โ€” every day above 50ยฐF 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.

Borage needs ~1,251 GDD — county provides 5,096 GDD Excellent fit

Borage Planting Timeline โ€” Cottle County, TX

Borage Planting Calendar

Activity When Date Range
Start Indoors February 23 Feb 23 โ€“ Mar 9
Transplant Outdoors March 23 Mar 23 โ€“ Apr 6
Direct Sow March 16 Mar 16 โ€“ Apr 6
Harvest May 18 May 18 โ€“ Jul 6
Fall Sowing August 31 Aug 31 โ€“ Sep 14

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.5"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

50โ€“60 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

224 days in Cottle County

Growing Tips for Borage in Cottle County

Direct sow Borage outdoors after March 30 in Cottle County when soil has warmed and frost danger has passed.

Sandy soil in Cottle County dries quickly โ€” mulch Borage with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 97ยฐF in Cottle County, provide afternoon shade for Borage and water deeply in the morning.

With 59" of annual rainfall in Cottle County, ensure good drainage for Borage โ€” excess moisture can promote root rot and fungal diseases.

General growing tips

Direct sow in spring as borage does not transplant well. Allow some plants to go to seed for next year. Young leaves are best; older leaves become bristly.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Borage in Cottle County, TX?

Cottle County is in Zone 7b with an average last frost of March 30. Plan your Borage planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Cottle County, TX?

Cottle County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 30 and first fall frost is November 9.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Cottle 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 Cottle County, TX. Local conditions may vary. Last updated: April 2026.