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When to Plant Borage in Alcorn County, MS

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.

Alcorn County, Mississippi is in USDA Zone 7b. The average last spring frost is March 31 and the first fall frost is October 28, giving you a growing season of approximately 211 days.

At an elevation of 195 feet, Alcorn County receives approximately 56.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91ยฐF, providing good warmth for Borage during the growing season. 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.

Alcorn County, MS (Zone 7b) Long season
211 days
Last Spring Frost March 31
211 growing days
First Fall Frost October 28

Alcorn County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (116 days to spare)
Start indoors: Feb 17 Transplant: Mar 17 🍅 Harvest: May 12 – Jun 30
Recommended (50%) ✓ Fits season (113 days to spare)
Start indoors: Feb 24 Transplant: Mar 24 🍅 Harvest: May 19 – Jul 7
Safe Start (90%) ✓ Fits season (113 days to spare)
Start indoors: Mar 12 Transplant: Apr 9 🍅 Harvest: Jun 4 – Jul 23

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 Alcorn County

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

Soil pH

Your soil pH (5.5โ€“6.6) overlaps with Borage's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.7%). 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

5
successive plantings in your 211-day season

Sow every 5.7 weeks. Last sowing by Aug 29 to harvest before frost.

For a dedicated fall crop, sow by Aug 19.

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

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€” 4.8" 0" โ„๏ธ Dormant
Feb โ€” 4.6" 0" โ„๏ธ Dormant
Mar 2.2" 5.4" 0" โœ… Rainfall sufficient
Apr 2.2" 4.2" 0" โœ… Rainfall sufficient
May 2.2" 4.2" 0" โœ… Rainfall sufficient
Jun 2.2" 5.1" 0" โœ… Rainfall sufficient
Jul 2.2" 5.1" 0" โœ… Rainfall sufficient
Aug 2.2" 5.3" 0" โœ… Rainfall sufficient
Sep 2.2" 3.7" 0" โœ… Rainfall sufficient
Oct 2.2" 4" 0" โœ… Rainfall sufficient
Nov โ€” 4.9" 0" โ„๏ธ Dormant
Dec โ€” 5.1" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Oct in Alcorn 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 ~1,004 GDD — county provides 3,850 GDD Excellent fit

Borage Planting Timeline โ€” Alcorn County, MS

Borage Planting Calendar

Activity When Date Range
Start Indoors February 24 Feb 24 โ€“ Mar 10
Transplant Outdoors March 24 Mar 24 โ€“ Apr 7
Direct Sow March 17 Mar 17 โ€“ Apr 7
Harvest May 19 May 19 โ€“ Jul 7
Fall Sowing August 19 Aug 19 โ€“ Sep 2

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: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

211 days in Alcorn County

Growing Tips for Borage in Alcorn County

Direct sow Borage outdoors after March 31 in Alcorn County when soil has warmed and frost danger has passed.

With Alcorn County's clay soil (30% clay), work in 3-4 inches of compost before planting Borage. Avoid tilling when soil is wet to prevent compaction.

With 56" of annual rainfall in Alcorn 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 Alcorn County, MS?

Alcorn County is in Zone 7b with an average last frost of March 31. Plan your Borage planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Alcorn County, MS?

Alcorn County, Mississippi is in USDA Hardiness Zone 7b. The average last spring frost is March 31 and first fall frost is October 28.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Alcorn County gardeners in Zone 7b 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 Alcorn County, MS. Local conditions may vary. Last updated: April 2026.