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When to Plant Garlic Chives in Assumption Parish, LA

Assumption Parish, Louisiana Zone 9b May

This month in Assumption Parish, Louisiana

May is a pivotal month for Assumption Parish, Louisiana gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost February 13
Avg. first frost December 5
Soil temp (4") 78°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Basket week: garlic chives

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

Looking ahead to June
  • First harvests: garlic chives

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Garlic chives are a perennial herb with flat leaves that have a mild garlic flavor. They produce attractive white flower clusters and are used in Asian cooking.

Assumption Parish, Louisiana is in USDA Zone 9b. The average last spring frost is February 13 and the first fall frost is December 5, giving you a growing season of approximately 295 days.

At an elevation of 126 feet, Assumption Parish receives approximately 55.7 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 104°F, so Garlic Chives may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Garlic Chives will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Garlic Chives root diseases.

Assumption Parish, LA (Zone 9b) Year-round
295 days
Last Spring Frost February 13
295 growing days
First Fall Frost December 5

Assumption Parish Soil Profile

Soil Type

Sandy Loam

Soil pH

5-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (156 days to spare)
Transplant: Feb 11 🍅 Harvest: Apr 15 – Jun 24
Recommended (50%) ✓ Fits season (155 days to spare)
Transplant: Feb 20 🍅 Harvest: Apr 24 – Jul 3
Safe Start (90%) ✓ Fits season (146 days to spare)
Transplant: Mar 16 🍅 Harvest: May 18 – Jul 27

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 Assumption Parish

How your county's soil matches Garlic Chives's growing requirements.

Soil pH

Your soil pH (5.0–6.3) is more acidic than Garlic Chives prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

Garlic Chives 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 Garlic Chives.

How to Plant Garlic Chives

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

Succession Planting Garlic Chives

5
successive plantings in your 295-day season

Sow every 6.9 weeks. Last sowing by Sep 06 to harvest before frost.

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

Monthly Watering Guide for Garlic Chives

Garlic Chives 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 Garlic Chives Needs Rainfall You Supplement Action
Jan 4.4" 0" ❄️ Dormant
Feb 2.2" 4.6" 0" ✅ Rainfall sufficient
Mar 2.2" 5.5" 0" ✅ Rainfall sufficient
Apr 2.2" 4.3" 0" ✅ Rainfall sufficient
May 2.2" 4.4" 0" ✅ Rainfall sufficient
Jun 2.2" 4.8" 0" ✅ Rainfall sufficient
Jul 2.2" 6.2" 0" ✅ Rainfall sufficient
Aug 2.2" 5" 0" ✅ Rainfall sufficient
Sep 2.2" 3.9" 0" ✅ Rainfall sufficient
Oct 2.2" 3.8" 0" ✅ Rainfall sufficient
Nov 2.2" 4.2" 0" ✅ Rainfall sufficient
Dec 2.2" 4.6" 0" ✅ Rainfall sufficient

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

Garlic Chives 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.

Garlic Chives needs ~2,100 GDD — county provides 8,288 GDD Excellent fit

Garlic Chives Planting Timeline — Assumption Parish, LA

Garlic Chives Planting Calendar

Activity When Date Range
Transplant Outdoors February 20 Feb 20 – Mar 6
Harvest April 24 Apr 24 – Jul 3

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

Month-by-Month Timeline

MonthActivities
January
February Transplant Outdoors
March Transplant Outdoors
April Harvest
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

60–90 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9b

📆 Growing Season

295 days in Assumption Parish

Growing Tips for Garlic Chives in Assumption Parish

Direct sow Garlic Chives outdoors after February 13 in Assumption Parish when soil has warmed and frost danger has passed.

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

With summer highs reaching 104°F in Assumption Parish, provide afternoon shade for Garlic Chives and water deeply in the morning.

Common pests for Garlic Chives in this region include onion maggots and thrips. Use row covers early in the season and inspect plants weekly.

General growing tips

Start from seed or divisions. Cut flower stalks before seeds set to prevent aggressive self-seeding. Both leaves and flower buds are edible and flavorful.

Companion Planting

Good Companions

Avoid Planting Near

  • Peas
  • Green Beans

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Garlic Chives in Assumption Parish, LA?

Assumption Parish is in Zone 9b with an average last frost of February 13. Plan your Garlic Chives planting based on this frost date — see the calendar above for exact timing.

What planting zone is Assumption Parish, LA?

Assumption Parish, Louisiana is in USDA Hardiness Zone 9b. The average last spring frost is February 13 and first fall frost is December 5.

🌱

Your Assumption Parish Garden Planner — Free

A 24-page printable planner built for Assumption 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 Assumption Parish, LA. Local conditions may vary. Last updated: May 2026.

Sources & credits

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