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When to Plant Borage in Houston County, AL

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.

Houston County, Alabama is in USDA Zone 8a. The average last spring frost is March 6 and the first fall frost is November 19, giving you a growing season of approximately 258 days.

At an elevation of 230 feet, Houston County receives approximately 58.1 inches of rainfall annually with predominantly clay loam soil. Summer highs average 97ยฐF, so Borage may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Borage, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Borage root diseases.

Houston County, AL (Zone 8a) Long season
258 days
Last Spring Frost March 6
258 growing days
First Fall Frost November 19

Houston County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (159 days to spare)
Start indoors: Jan 24 Transplant: Feb 21 🍅 Harvest: Apr 18 – Jun 6
Recommended (50%) ✓ Fits season (160 days to spare)
Start indoors: Jan 30 Transplant: Feb 27 🍅 Harvest: Apr 24 – Jun 12
Safe Start (90%) ✓ Fits season (165 days to spare)
Start indoors: Feb 20 Transplant: Mar 20 🍅 Harvest: May 15 – Jul 3

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 Houston County

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

Soil pH

Your soil pH (5.3โ€“6.3) is more acidic than Borage prefers (6.0โ€“7.0). Add garden lime to raise pH.

Soil Texture

The clay loam soil in Houston County is excellent for Borage โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help 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

6
successive plantings in your 258-day season

Sow every 5.7 weeks. Last sowing by Sep 20 to harvest before frost.

For a dedicated fall crop, sow by Sep 10.

Plant Water Budget

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

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€” 4.3" 0" โ„๏ธ Dormant
Feb โ€” 4.7" 0" โ„๏ธ Dormant
Mar 2.2" 6.1" 0" โœ… Rainfall sufficient
Apr 2.2" 3.8" 0" โœ… Rainfall sufficient
May 2.2" 4.2" 0" โœ… Rainfall sufficient
Jun 2.2" 5.3" 0" โœ… Rainfall sufficient
Jul 2.2" 6.5" 0" โœ… Rainfall sufficient
Aug 2.2" 6" 0" โœ… Rainfall sufficient
Sep 2.2" 4.7" 0" โœ… Rainfall sufficient
Oct 2.2" 4.1" 0" โœ… Rainfall sufficient
Nov 2.2" 4.3" 0" โœ… Rainfall sufficient
Dec โ€” 4.1" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Houston 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 5,869 GDD Excellent fit

Borage Planting Timeline โ€” Houston County, AL

Borage Planting Calendar

Activity When Date Range
Start Indoors January 30 Jan 30 โ€“ Feb 13
Transplant Outdoors February 27 Feb 27 โ€“ Mar 13
Direct Sow February 20 Feb 20 โ€“ Mar 13
Harvest April 24 Apr 24 โ€“ Jun 12
Fall Sowing September 10 Sep 10 โ€“ Sep 24

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

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Start Indoors Transplant Outdoors Direct Sow
March Transplant Outdoors Direct Sow
April Harvest
May Harvest
June Harvest
July โ€”
August โ€”
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_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

258 days in Houston County

Growing Tips for Borage in Houston County

Direct sow Borage outdoors after March 06 in Houston County when soil has warmed and frost danger has passed.

With Houston County's clay soil (31% clay), work in 3-4 inches of compost before planting Borage. Avoid tilling when soil is wet to prevent compaction.

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

With 58" of annual rainfall in Houston 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 Houston County, AL?

Houston County is in Zone 8a with an average last frost of March 6. Plan your Borage planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Houston County, AL?

Houston County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 6 and first fall frost is November 19.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Houston County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

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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 Houston County, AL. Local conditions may vary. Last updated: April 2026.