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When to Plant Rosemary in Hudspeth County, TX

Hudspeth County, Texas Zone 8a May

This month in Hudspeth County, Texas

Your Hudspeth County, Texas garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.

Avg. last frost March 30
Avg. first frost November 5
Soil temp (4") 58°F
Watering Critical
Pest pressure Moderate
Daylight 13.6 hrs
Coming up in June — start thinking about
  • 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.

Hudspeth County, Texas is in USDA Zone 8a. The average last spring frost is March 30 and the first fall frost is November 5, giving you a growing season of approximately 220 days.

At an elevation of 3,983 feet, Hudspeth County receives approximately 34.1 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 102°F, so Rosemary may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Rosemary will need more frequent watering and organic matter to retain nutrients.

Hudspeth County, TX (Zone 8a) Long season
220 days
Last Spring Frost March 30
220 growing days
First Fall Frost November 5

Hudspeth County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.2-8.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Mar 27 🍅 Harvest: Jun 19 – Nov 6
Recommended (50%) ✗ May not fit
Transplant: Apr 6 🍅 Harvest: Jun 29 – Nov 16
Safe Start (90%) ✗ May not fit
Transplant: Apr 24 🍅 Harvest: Jul 17 – Dec 4

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 Hudspeth County

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

Soil pH

Your soil pH (7.2–8.3) is more alkaline than Rosemary prefers (6.0–7.5). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Hudspeth County warms quickly in spring but drains fast. Rosemary will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (1.1%). Add 2-3 inches of compost before planting Rosemary.

How to Plant Rosemary

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

Succession Planting Rosemary

3
successive plantings in your 220-day season

Sow every 9.1 weeks. Last sowing by May 09 to harvest before frost.

Plant Water Budget

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

Water stress score is 8/10 — 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 2" 0" ❄️ Dormant
Feb 2" 0" ❄️ Dormant
Mar 1.3" 2" 0" ✅ Rainfall sufficient
Apr 1.3" 1.2" 0.1" 💧 Light watering
May 1.3" 0.7" 0.6" 💧 Light watering
Jun 1.3" 1.2" 0.1" 💧 Light watering
Jul 1.3" 6.1" 0" ✅ Rainfall sufficient
Aug 1.3" 7.5" 0" ✅ Rainfall sufficient
Sep 1.3" 4.4" 0" ✅ Rainfall sufficient
Oct 1.3" 2.8" 0" ✅ Rainfall sufficient
Nov 1.3" 1.6" 0" ✅ Rainfall sufficient
Dec 2.4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Hudspeth 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 ~3,445 GDD — county provides 5,830 GDD Excellent fit

Rosemary Planting Timeline — Hudspeth County, TX

Rosemary Planting Calendar

Activity When Date Range
Transplant Outdoors April 6 Apr 6 – Apr 20
Harvest June 29 Jun 29 – Nov 16

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

Month-by-Month Timeline

MonthActivities
January
February
March
April Transplant Outdoors
May
June Harvest
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: too_alkaline

🗺️ USDA Zone

Zone 8a

📆 Growing Season

220 days in Hudspeth County

Growing Tips for Rosemary in Hudspeth County

Direct sow Rosemary outdoors after March 30 in Hudspeth County when soil has warmed and frost danger has passed.

Sandy soil in Hudspeth County dries quickly — mulch Rosemary with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 102°F in Hudspeth County, provide afternoon shade for Rosemary and water deeply in the morning.

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 Hudspeth County, TX?

Hudspeth County is in Zone 8a with an average last frost of March 30. Plan your Rosemary planting based on this frost date — see the calendar above for exact timing.

What planting zone is Hudspeth County, TX?

Hudspeth County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 30 and first fall frost is November 5.

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Your Hudspeth County Garden Planner — Free

A 24-page printable planner built for Hudspeth County (Zone 8a). 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 Hudspeth County, TX. 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.