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When to Plant Lemon Verbena in El Paso County, TX

El Paso County, Texas Zone 8b May

Top priorities for El Paso County, Texas gardeners in May

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Avg. last frost March 16
Avg. first frost November 11
Soil temp (4") 61°F
Watering Critical
Pest pressure High
Daylight 13.6 hrs
  1. Fire up the seed-starting tray: lemon verbena

    Label every cell. You will absolutely forget which is which otherwise.

June prep starts now
  • First harvests: lemon verbena

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Lemon verbena is a deciduous shrub with intensely lemon-scented leaves that retain their aroma when dried. It makes an exceptional tea and adds citrus flavor to dishes.

El Paso County, Texas is in USDA Zone 8b. The average last spring frost is March 16 and the first fall frost is November 11, giving you a growing season of approximately 240 days.

At an elevation of 3,971 feet, El Paso County receives approximately 35.6 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 107°F, so Lemon Verbena may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Lemon Verbena will need more frequent watering and organic matter to retain nutrients.

El Paso County, TX (Zone 8b) Long season
240 days
Last Spring Frost March 16
240 growing days
First Fall Frost November 11

El Paso County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.4-8.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (97 days to spare)
Start indoors: Jan 11 Transplant: Mar 15 🍅 Harvest: May 17 – Jul 26
Recommended (50%) ✓ Fits season (93 days to spare)
Start indoors: Jan 26 Transplant: Mar 30 🍅 Harvest: Jun 1 – Aug 10
Safe Start (90%) ✓ Fits season (84 days to spare)
Start indoors: Feb 20 Transplant: Apr 24 🍅 Harvest: Jun 26 – Sep 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 El Paso County

How your county's soil matches Lemon Verbena's growing requirements.

Soil pH

Your soil pH (7.4–8.5) is more alkaline than Lemon Verbena prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in El Paso County warms quickly in spring but drains fast. Lemon Verbena will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Lemon Verbena.

Organic Matter

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

How to Plant Lemon Verbena

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

Succession Planting Lemon Verbena

4
successive plantings in your 240-day season

Sow every 6.9 weeks. Last sowing by Aug 13 to harvest before frost.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.6″/week
You supply
0.8″/week
Watering frequency 2-3 times/week
Season total 1,735 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Lemon Verbena

Lemon Verbena needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Lemon Verbena Needs Rainfall You Supplement Action
Jan 2.4" 0" ❄️ Dormant
Feb 1.9" 0" ❄️ Dormant
Mar 4.3" 1.8" 2.5" 🚿 Regular watering
Apr 4.3" 1.1" 3.2" 🚿 Regular watering
May 4.3" 0.8" 3.5" 🚿 Regular watering
Jun 4.3" 1.1" 3.2" 🚿 Regular watering
Jul 4.3" 5.6" 0" ✅ Rainfall sufficient
Aug 4.3" 7.5" 0" ✅ Rainfall sufficient
Sep 4.3" 5.1" 0" ✅ Rainfall sufficient
Oct 4.3" 3.6" 0.7" 💧 Light watering
Nov 4.3" 1.8" 2.5" 🚿 Regular watering
Dec 2.8" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in El Paso County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Lemon Verbena 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.

Lemon Verbena needs ~2,269 GDD — county provides 7,260 GDD Excellent fit

Lemon Verbena Planting Timeline — El Paso County, TX

Lemon Verbena Planting Calendar

Activity When Date Range
Start Indoors January 26 Jan 26 – Feb 9
Transplant Outdoors March 30 Mar 30 – Apr 13
Direct Sow March 23 Mar 23 – Apr 13
Harvest June 1 Jun 1 – Aug 10

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 2-3 times/week

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 8b

📆 Growing Season

240 days in El Paso County

Growing Tips for Lemon Verbena in El Paso County

Direct sow Lemon Verbena outdoors after March 16 in El Paso County when soil has warmed and frost danger has passed.

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

With summer highs reaching 107°F in El Paso County, provide afternoon shade for Lemon Verbena and water deeply in the morning.

General growing tips

Grow in a container in cold climates and bring indoors for winter. Prune back hard in spring. Harvest leaves anytime but flavor peaks just before flowering. Dries well for tea.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Lemon Verbena in El Paso County, TX?

El Paso County is in Zone 8b with an average last frost of March 16. Plan your Lemon Verbena planting based on this frost date — see the calendar above for exact timing.

What planting zone is El Paso County, TX?

El Paso County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 16 and first fall frost is November 11.

🌱

Your El Paso County Garden Planner — Free

A 24-page printable planner built for El Paso County (Zone 8b). 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 El Paso 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.