Blog

When to Plant Lemon Verbena in Acadia Parish, LA

Acadia Parish, Louisiana Zone 9a May

Your May gardening checklist

We've pulled the most time-sensitive tasks for Acadia Parish, Louisiana this May and put them front and centre. Tackle them in order.

Avg. last frost February 12
Avg. first frost December 6
Soil temp (4") 78°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Bring in the lemon verbena

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

Before June arrives, get these ready
  • First harvests: lemon verbena

Instant PDF download. No spam, unsubscribe any time.

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.

Acadia Parish, Louisiana is in USDA Zone 9a. The average last spring frost is February 12 and the first fall frost is December 6, giving you a growing season of approximately 297 days.

At an elevation of 259 feet, Acadia Parish receives approximately 61.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 103°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. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lemon Verbena root diseases.

Acadia Parish, LA (Zone 9a) Year-round
297 days
Last Spring Frost February 12
297 growing days
First Fall Frost December 6

Acadia Parish Soil Profile

Soil Type

Sandy Loam

Soil pH

5-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (163 days to spare)
Start indoors: Dec 19 Transplant: Feb 6 🍅 Harvest: Apr 10 – Jun 19
Recommended (50%) ✓ Fits season (157 days to spare)
Start indoors: Jan 1 Transplant: Feb 19 🍅 Harvest: Apr 23 – Jul 2
Safe Start (90%) ✓ Fits season (144 days to spare)
Start indoors: Jan 27 Transplant: Mar 17 🍅 Harvest: May 19 – Jul 28

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 Acadia Parish

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

Soil pH

Your soil pH (5.0–6.5) is more acidic than Lemon Verbena prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Lemon Verbena.

How to Plant Lemon Verbena

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

Succession Planting Lemon Verbena

5
successive plantings in your 297-day season

Sow every 6.9 weeks. Last sowing by Sep 07 to harvest before frost.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 357 gal / 100 sq ft

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 5.2" 0" ❄️ Dormant
Feb 4.3" 4.8" 0" ✅ Rainfall sufficient
Mar 4.3" 5.6" 0" ✅ Rainfall sufficient
Apr 4.3" 4.1" 0.2" 💧 Light watering
May 4.3" 5.3" 0" ✅ Rainfall sufficient
Jun 4.3" 6.3" 0" ✅ Rainfall sufficient
Jul 4.3" 6.3" 0" ✅ Rainfall sufficient
Aug 4.3" 5.6" 0" ✅ Rainfall sufficient
Sep 4.3" 4.3" 0" ✅ Rainfall sufficient
Oct 4.3" 3.7" 0.6" 💧 Light watering
Nov 4.3" 4.9" 0" ✅ Rainfall sufficient
Dec 4.3" 5.2" 0" ✅ Rainfall sufficient

Water needs are for active growing months only (Feb–Dec in Acadia Parish). 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 ~2,044 GDD — county provides 8,120 GDD Excellent fit

Lemon Verbena Planting Timeline — Acadia Parish, LA

Lemon Verbena Planting Calendar

Activity When Date Range
Start Indoors January 1 Jan 1 – Jan 15
Transplant Outdoors February 19 Feb 19 – Mar 5
Direct Sow February 19 Feb 19 – Mar 12
Harvest April 23 Apr 23 – Jul 2

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

297 days in Acadia Parish

Growing Tips for Lemon Verbena in Acadia Parish

Direct sow Lemon Verbena outdoors after February 12 in Acadia Parish when soil has warmed and frost danger has passed.

Sandy soil in Acadia Parish 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 103°F in Acadia Parish, 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 Acadia Parish, LA?

Acadia Parish is in Zone 9a with an average last frost of February 12. Plan your Lemon Verbena planting based on this frost date — see the calendar above for exact timing.

What planting zone is Acadia Parish, LA?

Acadia Parish, Louisiana is in USDA Hardiness Zone 9a. The average last spring frost is February 12 and first fall frost is December 6.

🌱

Your Acadia Parish Garden Planner — Free

A 24-page printable planner built for Acadia Parish (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Acadia Parish, LA. 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.