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When to Plant Dill in Orleans Parish, LA

Orleans Parish, Louisiana Zone 9b May

May to-do list for Orleans Parish, Louisiana

A quick May briefing for Orleans Parish, Louisiana gardeners — what's urgent, what's next, and what can wait.

Avg. last frost February 20
Avg. first frost November 23
Soil temp (4") 79°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Bring in the dill

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

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Dill is a feathery annual herb with aromatic leaves and seeds. Its fine foliage and umbrella-shaped flower heads attract beneficial insects to the garden.

Orleans Parish, Louisiana is in USDA Zone 9b. The average last spring frost is February 20 and the first fall frost is November 23, giving you a growing season of approximately 276 days.

At an elevation of 489 feet, Orleans Parish receives approximately 50.1 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 101°F, so Dill may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Dill will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Dill root diseases.

Orleans Parish, LA (Zone 9b) Year-round
276 days
Last Spring Frost February 20
276 growing days
First Fall Frost November 23
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Orleans Parish Soil Profile

Soil Type

Sandy Loam

Soil pH

5-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (191 days to spare)
Start indoors: Jan 2 Transplant: Jan 23 🍅 Harvest: Mar 6 – May 8
Recommended (50%) ✓ Fits season (178 days to spare)
Start indoors: Jan 23 Transplant: Feb 13 🍅 Harvest: Mar 27 – May 29
Safe Start (90%) ✓ Fits season (165 days to spare)
Start indoors: Mar 2 Transplant: Mar 23 🍅 Harvest: May 4 – Jul 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 Orleans Parish

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

Soil pH

Your soil pH (5.0–6.2) overlaps with Dill's range (5.5–7.0), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Dill.

Organic Matter

Organic matter is low (1.9%). Add 2-3 inches of compost before planting Dill.

How to Plant Dill

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

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Dill

8
successive plantings in your 276-day season

Sow every 4.6 weeks. Last sowing by Sep 24 to harvest before frost.

For a dedicated fall crop, sow by Sep 28.

Plant Water Budget

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

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Dill

Dill 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 Dill Needs Rainfall You Supplement Action
Jan 4.2" 0" ❄️ Dormant
Feb 2.2" 4.2" 0" ✅ Rainfall sufficient
Mar 2.2" 4.4" 0" ✅ Rainfall sufficient
Apr 2.2" 3.9" 0" ✅ Rainfall sufficient
May 2.2" 4.4" 0" ✅ Rainfall sufficient
Jun 2.2" 4.9" 0" ✅ Rainfall sufficient
Jul 2.2" 4.3" 0" ✅ Rainfall sufficient
Aug 2.2" 5.1" 0" ✅ Rainfall sufficient
Sep 2.2" 3.6" 0" ✅ Rainfall sufficient
Oct 2.2" 3.4" 0" ✅ Rainfall sufficient
Nov 2.2" 3.8" 0" ✅ Rainfall sufficient
Dec 3.9" 0" ❄️ Dormant

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

Dill 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.

Dill needs ~1,288 GDD — county provides 7,132 GDD Excellent fit

Dill Planting Timeline — Orleans Parish, LA

Dill Planting Calendar

Activity When Date Range
Start Indoors January 23 Jan 23 – Feb 6
Transplant Outdoors February 13 Feb 13 – Feb 27
Direct Sow January 30 Jan 30 – Feb 20
Harvest March 27 Mar 27 – May 29
Fall Sowing September 28 Sep 28 – Oct 12

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 9b

📆 Growing Season

276 days in Orleans Parish

Growing Tips for Dill in Orleans Parish

Direct sow Dill outdoors after February 20 in Orleans Parish when soil has warmed and frost danger has passed.

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

With summer highs reaching 101°F in Orleans Parish, provide afternoon shade for Dill and water deeply in the morning.

Your generous 277.0-day season in Orleans Parish allows multiple plantings of Dill. Sow every 20.0 days for continuous harvest.

Common pests for Dill in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow in spring as dill has a taproot and dislikes transplanting. Succession sow for continuous leaf harvest. Allow some plants to flower for seeds and to attract beneficial insects.

Companion Planting

Good Companions

Avoid Planting Near

  • Carrots
  • Tomatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Dill in Orleans Parish, LA?

Orleans Parish is in Zone 9b with an average last frost of February 20. Plan your Dill planting based on this frost date — see the calendar above for exact timing.

What planting zone is Orleans Parish, LA?

Orleans Parish, Louisiana is in USDA Hardiness Zone 9b. The average last spring frost is February 20 and first fall frost is November 23.

🌱

Your Orleans Parish Garden Planner — Free

A 24-page printable planner built for Orleans Parish (Zone 9b). 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 Orleans 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.