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When to Plant Borage in Moore County, NC

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.

Moore County, North Carolina is in USDA Zone 7b. The average last spring frost is March 28 and the first fall frost is November 6, giving you a growing season of approximately 223 days.

At an elevation of 928 feet, Moore County receives approximately 47 inches of rainfall annually with predominantly clay loam soil. Summer highs average 88ยฐF, 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.

Moore County, NC (Zone 7b) Long season
223 days
Last Spring Frost March 28
223 growing days
First Fall Frost November 6

Moore County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (128 days to spare)
Start indoors: Feb 13 Transplant: Mar 13 🍅 Harvest: May 8 – Jun 26
Recommended (50%) ✓ Fits season (125 days to spare)
Start indoors: Feb 21 Transplant: Mar 21 🍅 Harvest: May 16 – Jul 4
Safe Start (90%) ✓ Fits season (120 days to spare)
Start indoors: Mar 14 Transplant: Apr 11 🍅 Harvest: Jun 6 – Jul 25

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 Moore County

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

Soil pH

Your soil pH (5.5โ€“6.4) is more acidic than Borage prefers (6.0โ€“7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Borage prefers dry conditions but your soil drains poorly. Use raised beds or mounded rows to prevent root rot.

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

5
successive plantings in your 223-day season

Sow every 5.7 weeks. Last sowing by Sep 07 to harvest before frost.

For a dedicated fall crop, sow by Aug 28.

Plant Water Budget

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

Water stress score is 6/10 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€” 4" 0" โ„๏ธ Dormant
Feb โ€” 3.7" 0" โ„๏ธ Dormant
Mar 2.2" 5.2" 0" โœ… Rainfall sufficient
Apr 2.2" 4" 0" โœ… Rainfall sufficient
May 2.2" 3.7" 0" โœ… Rainfall sufficient
Jun 2.2" 4.4" 0" โœ… Rainfall sufficient
Jul 2.2" 4.8" 0" โœ… Rainfall sufficient
Aug 2.2" 4.3" 0" โœ… Rainfall sufficient
Sep 2.2" 3.2" 0" โœ… Rainfall sufficient
Oct 2.2" 2.6" 0" โœ… Rainfall sufficient
Nov 2.2" 3.6" 0" โœ… Rainfall sufficient
Dec โ€” 3.5" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Moore 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 ~880 GDD — county provides 3,568 GDD Excellent fit

Borage Planting Timeline โ€” Moore County, NC

Borage Planting Calendar

Activity When Date Range
Start Indoors February 21 Feb 21 โ€“ Mar 7
Transplant Outdoors March 21 Mar 21 โ€“ Apr 4
Direct Sow March 14 Mar 14 โ€“ Apr 4
Harvest May 16 May 16 โ€“ Jul 4
Fall Sowing August 28 Aug 28 โ€“ Sep 11

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_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

223 days in Moore County

Growing Tips for Borage in Moore County

Direct sow Borage outdoors after March 28 in Moore County when soil has warmed and frost danger has passed.

With Moore County's clay soil (29% clay), work in 3-4 inches of compost before planting Borage. Avoid tilling when soil is wet to prevent compaction.

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 Moore County, NC?

Moore County is in Zone 7b with an average last frost of March 28. Plan your Borage planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Moore County, NC?

Moore County, North Carolina is in USDA Hardiness Zone 7b. The average last spring frost is March 28 and first fall frost is November 6.

๐ŸŒฑ

Plan Your Garden with Confidence

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