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When to Plant Rosemary in Mineral County, WV

Mineral County, West Virginia Zone 7a May

Your May game plan for Mineral County, West Virginia

A quick May briefing for Mineral County, West Virginia gardeners — what's urgent, what's next, and what can wait.

Avg. last frost April 29
Avg. first frost October 16
Soil temp (4") 56°F
Watering Moderate
Pest pressure Low
Daylight 14.2 hrs
  1. Set out rosemary seedlings

    Harden off for 7 days — a little more sun each day — before planting. That's the difference between a seedling that thrives and one that stalls.

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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.

Mineral County, West Virginia is in USDA Zone 7a. The average last spring frost is April 29 and the first fall frost is October 16, giving you a growing season of approximately 170 days.

At an elevation of 2,584 feet, Mineral County receives approximately 43.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Rosemary during the growing season.

Mineral County, WV (Zone 7a) Moderate season
170 days
Last Spring Frost April 29
170 growing days
First Fall Frost October 16
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Mineral 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 30 🍅 Harvest: Jul 23 – Dec 10
Recommended (50%) ✗ May not fit
Transplant: May 6 🍅 Harvest: Jul 29 – Dec 16
Safe Start (90%) ✓ Fits season (291 days to spare)
Transplant: May 29 🍅 Harvest: Aug 21 – Jan 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 Mineral 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 Mineral County is excellent for Rosemary — good drainage, moisture retention, and nutrient holding capacity.

Drainage

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

Organic Matter

Organic matter is moderate (3.4%). 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 170-day season

Sow every 9.1 weeks. Last sowing by Apr 19 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

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 3.6" 0" ❄️ Dormant
Feb 4" 0" ❄️ Dormant
Mar 4.7" 0" ❄️ Dormant
Apr 1.3" 3.7" 0" ✅ Rainfall sufficient
May 1.3" 3.1" 0" ✅ Rainfall sufficient
Jun 1.3" 4.4" 0" ✅ Rainfall sufficient
Jul 1.3" 4.4" 0" ✅ Rainfall sufficient
Aug 1.3" 3.7" 0" ✅ Rainfall sufficient
Sep 1.3" 3.2" 0" ✅ Rainfall sufficient
Oct 1.3" 2.6" 0" ✅ Rainfall sufficient
Nov 3.1" 0" ❄️ Dormant
Dec 3.3" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Mineral 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 ~2,080 GDD — county provides 2,720 GDD Excellent fit

Rosemary Planting Timeline — Mineral County, WV

Rosemary Planting Calendar

Activity When Date Range
Transplant Outdoors May 6 May 6 – May 20
Harvest July 29 Jul 29 – Dec 16

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

Month-by-Month Timeline

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

170 days in Mineral County

Growing Tips for Rosemary in Mineral County

Direct sow Rosemary outdoors after April 29 in Mineral County when soil has warmed and frost danger has passed.

Your 170.0-day growing season in Mineral County is tight for Rosemary (80.0-180.0 days to maturity). Start indoors and choose early-maturing varieties.

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 Mineral County, WV?

Mineral County is in Zone 7a with an average last frost of April 29. Plan your Rosemary planting based on this frost date — see the calendar above for exact timing.

What planting zone is Mineral County, WV?

Mineral County, West Virginia is in USDA Hardiness Zone 7a. The average last spring frost is April 29 and first fall frost is October 16.

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Your Mineral County Garden Planner — Free

A 24-page printable planner built for Mineral 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 Mineral County, WV. 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.