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When to Plant Sage in Marshall County, OK

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.

Marshall County, Oklahoma is in USDA Zone 7b. The average last spring frost is March 24 and the first fall frost is November 12, giving you a growing season of approximately 233 days.

At an elevation of 520 feet, Marshall County receives approximately 23.7 inches of rainfall annually with predominantly loam soil. Summer highs average 92ยฐF, providing good warmth for Sage during the growing season.

Marshall County, OK (Zone 7b) Long season
233 days
Last Spring Frost March 24
233 growing days
First Fall Frost November 12

Marshall County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (97 days to spare)
Transplant: Mar 18 🍅 Harvest: Jun 3 – Jul 29
Recommended (50%) ✓ Fits season (93 days to spare)
Transplant: Mar 31 🍅 Harvest: Jun 16 – Aug 11
Safe Start (90%) ✓ Fits season (90 days to spare)
Transplant: Apr 21 🍅 Harvest: Jul 7 – Sep 1

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 Marshall County

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

Soil pH

Your soil pH (6.2โ€“7.8) overlaps with Sage's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Sage.

Organic Matter

Organic matter is moderate (3.5%). 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 233-day season

Sow every 8.6 weeks. Last sowing by Aug 14 to harvest before frost.

Plant Water Budget

Plant needs
0.3″/week
Rainfall provides
0.4″/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 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€” 0.5" 0" โ„๏ธ Dormant
Feb โ€” 0.8" 0" โ„๏ธ Dormant
Mar 1.3" 1.6" 0" โœ… Rainfall sufficient
Apr 1.3" 2.3" 0" โœ… Rainfall sufficient
May 1.3" 4" 0" โœ… Rainfall sufficient
Jun 1.3" 3.4" 0" โœ… Rainfall sufficient
Jul 1.3" 3" 0" โœ… Rainfall sufficient
Aug 1.3" 2.8" 0" โœ… Rainfall sufficient
Sep 1.3" 2.4" 0" โœ… Rainfall sufficient
Oct 1.3" 1.3" 0" โœ… Rainfall sufficient
Nov 1.3" 0.9" 0.4" ๐Ÿ’ง Light watering
Dec โ€” 0.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Marshall 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 ~1,568 GDD — county provides 4,427 GDD Excellent fit

Sage Planting Timeline โ€” Marshall County, OK

Sage Planting Calendar

Activity When Date Range
Transplant Outdoors March 31 Mar 31 โ€“ Apr 14
Harvest June 16 Jun 16 โ€“ Aug 11

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Transplant Outdoors
April Transplant Outdoors
May โ€”
June Harvest
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 7b

๐Ÿ“† Growing Season

233 days in Marshall County

Growing Tips for Sage in Marshall County

Direct sow Sage outdoors after March 24 in Marshall County when soil has warmed and frost danger has passed.

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 Marshall County, OK?

Marshall County is in Zone 7b with an average last frost of March 24. Plan your Sage planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Marshall County, OK?

Marshall County, Oklahoma is in USDA Hardiness Zone 7b. The average last spring frost is March 24 and first fall frost is November 12.

๐ŸŒฑ

Plan Your Garden with Confidence

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