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When to Plant Microgreens in Caddo Parish, LA

Caddo Parish, Louisiana Zone 8b May

Your May gardening checklist

Your Caddo Parish, Louisiana garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.

Avg. last frost March 13
Avg. first frost November 14
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.7 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.

Caddo Parish, Louisiana is in USDA Zone 8b. The average last spring frost is March 13 and the first fall frost is November 14, giving you a growing season of approximately 246 days.

At an elevation of 446 feet, Caddo Parish receives approximately 49 inches of rainfall annually with predominantly loam soil. Summer highs average 92°F, providing good warmth for Microgreens during the growing season.

Caddo Parish, LA (Zone 8b) Long season
246 days
Last Spring Frost March 13
246 growing days
First Fall Frost November 14

Caddo Parish Soil Profile

Soil Type

Loam

Soil pH

5.8-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (206 days to spare)
Start indoors: Jan 31 Transplant: Mar 7 🍅 Harvest: Mar 14 – Apr 11
Recommended (50%) ✓ Fits season (211 days to spare)
Start indoors: Feb 6 Transplant: Mar 13 🍅 Harvest: Mar 20 – Apr 17
Safe Start (90%) ✓ Fits season (207 days to spare)
Start indoors: Feb 27 Transplant: Apr 3 🍅 Harvest: Apr 10 – May 8

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 Caddo Parish

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

Soil pH

Your soil pH (5.8–7.0) overlaps with Microgreens's range (6.0–7.0), though not a perfect match.

Soil Texture

The loam soil in Caddo Parish is excellent for Microgreens — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.6%). Annual compost additions will help Microgreens.

How to Plant Microgreens

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Microgreens

48
successive plantings in your 246-day season

Sow every 0.7 weeks. Last sowing by Oct 24 to harvest before frost.

For a dedicated fall crop, sow by Sep 05.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 429 gal / 100 sq ft
Drought risk

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

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 3.6" 0" ❄️ Dormant
Feb 4" 0" ❄️ Dormant
Mar 4.3" 5" 0" ✅ Rainfall sufficient
Apr 4.3" 3.9" 0.4" 💧 Light watering
May 4.3" 3.8" 0.5" 💧 Light watering
Jun 4.3" 4.6" 0" ✅ Rainfall sufficient
Jul 4.3" 5.5" 0" ✅ Rainfall sufficient
Aug 4.3" 4.6" 0" ✅ Rainfall sufficient
Sep 4.3" 4" 0.3" 💧 Light watering
Oct 4.3" 2.9" 1.4" 💧 Light watering
Nov 4.3" 3.7" 0.6" 💧 Light watering
Dec 3.5" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Caddo 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 ~266 GDD — county provides 4,674 GDD Excellent fit

Microgreens Planting Timeline — Caddo Parish, LA

Microgreens Planting Calendar

Activity When Date Range
Start Indoors February 6 Feb 6 – Feb 20
Transplant Outdoors March 13 Mar 13 – Mar 27
Direct Sow February 27 Feb 27 – Mar 20
Harvest March 20 Mar 20 – Apr 17
Fall Sowing September 5 Sep 5 – Sep 19

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

7–21 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

246 days in Caddo Parish

Growing Tips for Microgreens in Caddo Parish

Direct sow Microgreens outdoors after March 13 in Caddo Parish when soil has warmed and frost danger has passed.

Your generous 246.0-day season in Caddo 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 Caddo Parish, LA?

Caddo Parish is in Zone 8b with an average last frost of March 13. Plan your Microgreens planting based on this frost date — see the calendar above for exact timing.

What planting zone is Caddo Parish, LA?

Caddo Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is March 13 and first fall frost is November 14.

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Your Caddo Parish Garden Planner — Free

A 24-page printable planner built for Caddo Parish (Zone 8b). 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 Caddo 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.