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When to Plant Rosemary in Van Buren County, TN

Van Buren County, Tennessee Zone 7a May

May to-do list for Van Buren County, Tennessee

A quick May briefing for Van Buren County, Tennessee gardeners — what's urgent, what's next, and what can wait.

Avg. last frost April 9
Avg. first frost October 27
Soil temp (4") 60°F
Watering Low
Pest pressure Moderate
Daylight 13.9 hrs

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Rosemary is an aromatic evergreen shrub with needle-like leaves and a piney, citrus flavor. It is a Mediterranean herb that thrives in warm, dry conditions.

Van Buren County, Tennessee is in USDA Zone 7a. The average last spring frost is April 9 and the first fall frost is October 27, giving you a growing season of approximately 201 days.

At an elevation of 3,238 feet, Van Buren County receives approximately 53.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Rosemary during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Rosemary root diseases.

Van Buren County, TN (Zone 7a) Long season
201 days
Last Spring Frost April 9
201 growing days
First Fall Frost October 27

Van Buren County Soil Profile

Soil Type

Silt Loam

Soil pH

5.4-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Apr 10 🍅 Harvest: Jul 3 – Nov 20
Recommended (50%) ✗ May not fit
Transplant: Apr 16 🍅 Harvest: Jul 9 – Nov 26
Safe Start (90%) ✗ May not fit
Transplant: Apr 28 🍅 Harvest: Jul 21 – Dec 8

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 Van Buren County

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

Soil pH

Your soil pH (5.4–6.7) overlaps with Rosemary's range (6.0–7.5), though not a perfect match.

Soil Texture

The silt loam soil in Van Buren County is excellent for Rosemary — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

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

How to Plant Rosemary

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

Succession Planting Rosemary

2
successive plantings in your 201-day season

Sow every 9.1 weeks. Last sowing by Apr 30 to harvest before frost.

Plant Water Budget

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

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Rosemary

Rosemary 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 Rosemary Needs Rainfall You Supplement Action
Jan 4.2" 0" ❄️ Dormant
Feb 4.4" 0" ❄️ Dormant
Mar 5.7" 0" ❄️ Dormant
Apr 1.3" 3.9" 0" ✅ Rainfall sufficient
May 1.3" 4" 0" ✅ Rainfall sufficient
Jun 1.3" 5.1" 0" ✅ Rainfall sufficient
Jul 1.3" 5" 0" ✅ Rainfall sufficient
Aug 1.3" 4.3" 0" ✅ Rainfall sufficient
Sep 1.3" 4.2" 0" ✅ Rainfall sufficient
Oct 1.3" 3.6" 0" ✅ Rainfall sufficient
Nov 4.1" 0" ❄️ Dormant
Dec 4.7" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Van Buren County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Rosemary 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" — every day above 50°F 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.

Rosemary needs ~2,178 GDD — county provides 3,366 GDD Excellent fit

Rosemary Planting Timeline — Van Buren County, TN

Rosemary Planting Calendar

Activity When Date Range
Transplant Outdoors April 16 Apr 16 – Apr 30
Harvest July 9 Jul 9 – Nov 26

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.3"/week · Natural rainfall sufficient

📅 Days to Maturity

80–180 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

201 days in Van Buren County

Growing Tips for Rosemary in Van Buren County

Direct sow Rosemary outdoors after April 09 in Van Buren County when soil has warmed and frost danger has passed.

General growing tips

Grow in well-drained soil and avoid overwatering. In cold climates, grow in containers and bring indoors for winter. Propagate from stem cuttings for faster results than seed.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Rosemary in Van Buren County, TN?

Van Buren County is in Zone 7a with an average last frost of April 9. Plan your Rosemary planting based on this frost date — see the calendar above for exact timing.

What planting zone is Van Buren County, TN?

Van Buren County, Tennessee is in USDA Hardiness Zone 7a. The average last spring frost is April 9 and first fall frost is October 27.

🌱

Your Van Buren County Garden Planner — Free

A 24-page printable planner built for Van Buren County (Zone 7a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Van Buren County, TN. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.