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When to Plant Rue in Evangeline Parish, LA

Evangeline Parish, Louisiana Zone 9a May

May to-do list for Evangeline Parish, Louisiana

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

Avg. last frost February 22
Avg. first frost November 28
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Pick rue

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

To set up a strong June, finish these tasks
  • First harvests: rue

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Rue is a bitter, aromatic perennial herb with bluish-green foliage used historically in medicine and as a pest deterrent. Handle with care as its sap can cause skin irritation.

Evangeline Parish, Louisiana is in USDA Zone 9a. The average last spring frost is February 22 and the first fall frost is November 28, giving you a growing season of approximately 279 days.

At an elevation of 203 feet, Evangeline Parish receives approximately 59.5 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 90°F, providing good warmth for Rue during the growing season. Sandy soil warms quickly in spring — great for early planting — but Rue will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Rue root diseases.

Evangeline Parish, LA (Zone 9a) Year-round
279 days
Last Spring Frost February 22
279 growing days
First Fall Frost November 28

Evangeline Parish Soil Profile

Soil Type

Sandy Loam

Soil pH

5.1-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (138 days to spare)
Transplant: Feb 19 🍅 Harvest: Apr 30 – Jul 2
Recommended (50%) ✓ Fits season (139 days to spare)
Transplant: Mar 1 🍅 Harvest: May 10 – Jul 12
Safe Start (90%) ✓ Fits season (138 days to spare)
Transplant: Mar 19 🍅 Harvest: May 28 – Jul 30

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 Evangeline Parish

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

Soil pH

Your soil pH (5.1–6.3) is more acidic than Rue prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

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

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Rue.

How to Plant Rue

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

Succession Planting Rue

4
successive plantings in your 279-day season

Sow every 8 weeks. Last sowing by Aug 30 to harvest before frost.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Rue

Rue needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Rue Needs Rainfall You Supplement Action
Jan 5.4" 0" ❄️ Dormant
Feb 2.2" 4.8" 0" ✅ Rainfall sufficient
Mar 2.2" 5.4" 0" ✅ Rainfall sufficient
Apr 2.2" 4.8" 0" ✅ Rainfall sufficient
May 2.2" 4.3" 0" ✅ Rainfall sufficient
Jun 2.2" 6.2" 0" ✅ Rainfall sufficient
Jul 2.2" 6.6" 0" ✅ Rainfall sufficient
Aug 2.2" 5.3" 0" ✅ Rainfall sufficient
Sep 2.2" 4.5" 0" ✅ Rainfall sufficient
Oct 2.2" 3.7" 0" ✅ Rainfall sufficient
Nov 2.2" 4" 0" ✅ Rainfall sufficient
Dec 4.5" 0" ❄️ Dormant

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

Rue 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.

Rue needs ~1,400 GDD — county provides 4,900 GDD Excellent fit

Rue Planting Timeline — Evangeline Parish, LA

Rue Planting Calendar

Activity When Date Range
Transplant Outdoors March 1 Mar 1 – Mar 15
Harvest May 10 May 10 – Jul 12

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

279 days in Evangeline Parish

Growing Tips for Rue in Evangeline Parish

Direct sow Rue outdoors after February 22 in Evangeline Parish when soil has warmed and frost danger has passed.

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

General growing tips

Start seeds indoors or direct sow. Plant in well-drained soil. Wear gloves when handling as sap can cause phytophotodermatitis. Prune in early spring.

Companion Planting

Good Companions

Avoid Planting Near

  • Basil
  • Sage

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Rue in Evangeline Parish, LA?

Evangeline Parish is in Zone 9a with an average last frost of February 22. Plan your Rue planting based on this frost date — see the calendar above for exact timing.

What planting zone is Evangeline Parish, LA?

Evangeline Parish, Louisiana is in USDA Hardiness Zone 9a. The average last spring frost is February 22 and first fall frost is November 28.

🌱

Your Evangeline Parish Garden Planner — Free

A 24-page printable planner built for Evangeline 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.

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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 Evangeline 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.