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When to plant Rosemary in Izard County, AR

In Izard County, Rosemary is a single-season spring crop — there's no second fall window. Plant April 8–April 22 for an 80–180-day harvest, finishing well before the October 27 first frost.

When to Plant Rosemary in Izard County, AR

Rosemary
Izard County, Arkansas Zone 7b June

Your June game plan for Izard County, Arkansas

Here's what deserves your attention in Izard County, Arkansas this month. Everything below is tailored to Zone 7b and timed around your local frost dates.

Avg. last frost April 1
Avg. first frost October 27
Soil temp (4") 76°F
Watering Low
Pest pressure High
Daylight 14.4 hrs
July prep starts now
  • First harvests: rosemary

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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.

Izard County, Arkansas is in USDA Zone 7b. The average last spring frost is April 1 and the first fall frost is October 27, giving you a growing season of approximately 209 days.

At an elevation of 281 feet, Izard County receives approximately 48.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Rosemary during the growing season.

Izard County, AR (Zone 7b) Long season
209 days
Last Spring Frost April 1
209 growing days
First Fall Frost October 27

Izard County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.8

Drainage

Well Drained

Rosemary Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Apr 2 🍅 Harvest: Jun 25 – Nov 12
Recommended (50%) ✗ May not fit
Transplant: Apr 8 🍅 Harvest: Jul 1 – Nov 18
Safe Start (90%) ✗ May not fit
Transplant: Apr 26 🍅 Harvest: Jul 19 – Dec 6

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 Izard County

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

Soil pH

Your soil pH (5.3–6.8) overlaps with Rosemary's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Rosemary.

How to Plant Rosemary

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

Succession Planting Rosemary

3
successive plantings in your 209-day season

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

Rosemary Water Budget

Plant needs
0.3″/week
Rainfall provides
1.0″/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 3.7" 0" ❄️ Dormant
Feb 3.4" 0" ❄️ Dormant
Mar 4.2" 0" ❄️ Dormant
Apr 1.3" 3.8" 0" ✅ Rainfall sufficient
May 1.3" 4" 0" ✅ Rainfall sufficient
Jun 1.3" 4.8" 0" ✅ Rainfall sufficient
Jul 1.3" 5.6" 0" ✅ Rainfall sufficient
Aug 1.3" 5" 0" ✅ Rainfall sufficient
Sep 1.3" 3.7" 0" ✅ Rainfall sufficient
Oct 1.3" 3.1" 0" ✅ Rainfall sufficient
Nov 3.4" 0" ❄️ Dormant
Dec 3.6" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Izard 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 3,344 GDD Excellent fit

Rosemary Planting Timeline — Izard County, AR

Rosemary Planting Calendar

Activity When Date Range
Transplant Outdoors April 8 Apr 8 – Apr 22
Harvest July 1 Jul 1 – Nov 18

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 7b

📆 Growing Season

209 days in Izard County

Growing Tips for Rosemary in Izard County

Direct sow Rosemary outdoors after April 01 in Izard 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 Izard County, AR?

Izard County is in Zone 7b with an average last frost of April 1. Plan your Rosemary planting based on this frost date — see the calendar above for exact timing.

What planting zone is Izard County, AR?

Izard County, Arkansas is in USDA Hardiness Zone 7b. The average last spring frost is April 1 and first fall frost is October 27.

When should I plant Rosemary in Izard County, AR?

In Izard County, AR, plant Rosemary after the last frost (around April 1) and before the first frost (around October 27). Best results when soil holds above 50°F.

What growing zone is Izard County, AR for Rosemary?

Izard County sits in USDA Zone 7b. Rosemary grows reliably in zones 7a through 10b, so it's a good fit here.

Can Rosemary grow in Izard County's climate?

Yes — Rosemary grows well in Izard County's temperate climate. Izard County averages a 209-day frost-free season, with last frost around April 1 and first frost around October 27.

🌱

Your Izard County Garden Planner — Free

A 22-page printable planner built for Izard County (Zone 7b). 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 Izard County, AR. Local conditions may vary. Last updated: June 2026.

Sources & credits

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