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When to Plant Sage in Union County, GA

Sage is a woody perennial herb with velvety gray-green leaves and a warm, peppery flavor. It is a traditional seasoning for poultry, stuffing, and sausage.

Union County, Georgia is in USDA Zone 7a. The average last spring frost is April 11 and the first fall frost is October 23, giving you a growing season of approximately 195 days.

At an elevation of 175 feet, Union County receives approximately 61.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 93ยฐF, providing good warmth for Sage during the growing season. Clay soil retains moisture well for Sage, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Sage root diseases.

Union County, GA (Zone 7a) Moderate season
195 days
Last Spring Frost April 11
195 growing days
First Fall Frost October 23

Union County Soil Profile

Soil Type

Clay Loam

Soil pH

5.8-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (60 days to spare)
Transplant: Apr 7 🍅 Harvest: Jun 23 – Aug 18
Recommended (50%) ✓ Fits season (55 days to spare)
Transplant: Apr 18 🍅 Harvest: Jul 4 – Aug 29
Safe Start (90%) ✓ Fits season (60 days to spare)
Transplant: May 10 🍅 Harvest: Jul 26 – Sep 20

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 Union County

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

Soil pH

Your soil pH (5.8โ€“6.2) overlaps with Sage's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Sage.

How to Plant Sage

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

Succession Planting Sage

3
successive plantings in your 195-day season

Sow every 8.6 weeks. Last sowing by Jul 25 to harvest before frost.

Plant Water Budget

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

Monthly Watering Guide for Sage

Sage needs approximately 0.3 inches of water per week (1.3" per month). Here's how your county's rainfall compares month by month.

Month Sage Needs Rainfall You Supplement Action
Jan โ€” 6" 0" โ„๏ธ Dormant
Feb โ€” 4.6" 0" โ„๏ธ Dormant
Mar โ€” 5.8" 0" โ„๏ธ Dormant
Apr 1.3" 4.5" 0" โœ… Rainfall sufficient
May 1.3" 5.3" 0" โœ… Rainfall sufficient
Jun 1.3" 5.1" 0" โœ… Rainfall sufficient
Jul 1.3" 5.7" 0" โœ… Rainfall sufficient
Aug 1.3" 6.2" 0" โœ… Rainfall sufficient
Sep 1.3" 4.8" 0" โœ… Rainfall sufficient
Oct 1.3" 3.6" 0" โœ… Rainfall sufficient
Nov โ€” 4.2" 0" โ„๏ธ Dormant
Dec โ€” 5.6" 0" โ„๏ธ Dormant

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

Sage 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.

Sage needs ~1,629 GDD — county provides 3,851 GDD Excellent fit

Sage Planting Timeline โ€” Union County, GA

Sage Planting Calendar

Activity When Date Range
Transplant Outdoors April 18 Apr 18 โ€“ May 2
Harvest July 4 Jul 4 โ€“ Aug 29

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.3"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

75โ€“90 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 7a

๐Ÿ“† Growing Season

195 days in Union County

Growing Tips for Sage in Union County

Direct sow Sage outdoors after April 11 in Union County when soil has warmed and frost danger has passed.

With Union County's clay soil (28% clay), work in 3-4 inches of compost before planting Sage. Avoid tilling when soil is wet to prevent compaction.

With 61" of annual rainfall in Union County, ensure good drainage for Sage โ€” excess moisture can promote root rot and fungal diseases.

General growing tips

Start from seed or cuttings. Prune after flowering to maintain shape. Replace plants every 4-5 years when they become woody and less productive. Excellent drainage is essential.

Companion Planting

Good Companions

Avoid Planting Near

  • Cucumber
  • Rue

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Sage in Union County, GA?

Union County is in Zone 7a with an average last frost of April 11. Plan your Sage planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Union County, GA?

Union County, Georgia is in USDA Hardiness Zone 7a. The average last spring frost is April 11 and first fall frost is October 23.

๐ŸŒฑ

Plan Your Garden with Confidence

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