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When to Plant Microgreens in Jefferson Davis Parish, LA

Jefferson Davis Parish, Louisiana Zone 9a May

Your May game plan for Jefferson Davis Parish, Louisiana

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

Avg. last frost February 13
Avg. first frost December 7
Soil temp (4") 79°F
Watering Low
Pest pressure High
Daylight 13.5 hrs

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Microgreens are young seedlings of vegetables and herbs harvested at the cotyledon or first true leaf stage. They pack concentrated flavors and nutrients in a tiny package.

Jefferson Davis Parish, Louisiana is in USDA Zone 9a. The average last spring frost is February 13 and the first fall frost is December 7, giving you a growing season of approximately 297 days.

At an elevation of 381 feet, Jefferson Davis Parish receives approximately 61.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 95°F, so Microgreens may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Microgreens will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Microgreens root diseases.

Jefferson Davis Parish, LA (Zone 9a) Year-round
297 days
Last Spring Frost February 13
297 growing days
First Fall Frost December 7
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Jefferson Davis Parish Soil Profile

Soil Type

Sandy Loam

Soil pH

5.2-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (270 days to spare)
Start indoors: Jan 2 Transplant: Jan 30 🍅 Harvest: Feb 6 – Mar 6
Recommended (50%) ✓ Fits season (262 days to spare)
Start indoors: Jan 16 Transplant: Feb 13 🍅 Harvest: Feb 20 – Mar 20
Safe Start (90%) ✓ Fits season (257 days to spare)
Start indoors: Feb 6 Transplant: Mar 6 🍅 Harvest: Mar 13 – Apr 10

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 Jefferson Davis Parish

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

Soil pH

Your soil pH (5.2–6.3) is more acidic than Microgreens prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Microgreens.

Organic Matter

Organic matter is low (2.0%). Add 2-3 inches of compost before planting Microgreens.

How to Plant Microgreens

0.5"
Planting Depth
2"
Between Plants
6"
Between Rows

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

Succession Planting Microgreens

59
successive plantings in your 297-day season

Sow every 0.7 weeks. Last sowing by Nov 16 to harvest before frost.

For a dedicated fall crop, sow by Oct 12.

Plant Water Budget

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

Monthly Watering Guide for Microgreens

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

Month Microgreens Needs Rainfall You Supplement Action
Jan 5.4" 0" ❄️ Dormant
Feb 4.3" 4.8" 0" ✅ Rainfall sufficient
Mar 4.3" 5.7" 0" ✅ Rainfall sufficient
Apr 4.3" 4.6" 0" ✅ Rainfall sufficient
May 4.3" 5.3" 0" ✅ Rainfall sufficient
Jun 4.3" 4.5" 0" ✅ Rainfall sufficient
Jul 4.3" 6.7" 0" ✅ Rainfall sufficient
Aug 4.3" 6.2" 0" ✅ Rainfall sufficient
Sep 4.3" 4.6" 0" ✅ Rainfall sufficient
Oct 4.3" 3.7" 0.6" 💧 Light watering
Nov 4.3" 4.3" 0" ✅ Rainfall sufficient
Dec 4.3" 5.4" 0" ✅ Rainfall sufficient

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

Microgreens 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.

Microgreens needs ~298 GDD — county provides 6,332 GDD Excellent fit

Microgreens Planting Timeline — Jefferson Davis Parish, LA

Microgreens Planting Calendar

Activity When Date Range
Start Indoors January 16 Jan 16 – Jan 30
Transplant Outdoors February 13 Feb 13 – Feb 27
Direct Sow January 23 Jan 23 – Feb 13
Harvest February 20 Feb 20 – Mar 20
Fall Sowing October 12 Oct 12 – Oct 26

Plant 0.5" deep · 2" apart · Rows 6" apart

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

7–21 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

297 days in Jefferson Davis Parish

Growing Tips for Microgreens in Jefferson Davis Parish

Direct sow Microgreens outdoors after February 13 in Jefferson Davis Parish when soil has warmed and frost danger has passed.

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

Your generous 298.0-day season in Jefferson Davis Parish allows multiple plantings of Microgreens. Sow every 3.0 days for continuous harvest.

General growing tips

Sow seeds densely on shallow trays of moist growing medium. Cover until germination, then provide light. Harvest with scissors when 1-3 inches tall. Grow year-round indoors.

Frequently Asked Questions

When should I plant Microgreens in Jefferson Davis Parish, LA?

Jefferson Davis Parish is in Zone 9a with an average last frost of February 13. Plan your Microgreens planting based on this frost date — see the calendar above for exact timing.

What planting zone is Jefferson Davis Parish, LA?

Jefferson Davis Parish, Louisiana is in USDA Hardiness Zone 9a. The average last spring frost is February 13 and first fall frost is December 7.

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Your Jefferson Davis Parish Garden Planner — Free

A 24-page printable planner built for Jefferson Davis 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 Jefferson Davis 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.