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When to Plant Microgreens in Morgan County, AL

Morgan County, Alabama Zone 8a May

Morgan County, Alabama gardeners: here's your May plan

Each item below is timed to Morgan County, Alabama's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 27
Avg. first frost November 6
Soil temp (4") 69°F
Watering Low
Pest pressure Moderate
Daylight 13.8 hrs
  1. Fire up the seed-starting tray: microgreens

    Bottom-water once the first true leaves appear — it keeps stems dry and knocks back damping-off.

  2. Start harvesting microgreens

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

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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.

Morgan County, Alabama is in USDA Zone 8a. The average last spring frost is March 27 and the first fall frost is November 6, giving you a growing season of approximately 224 days.

At an elevation of 386 feet, Morgan County receives approximately 54.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91°F, providing good warmth for Microgreens during the growing season. Clay soil retains moisture well for Microgreens, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Microgreens root diseases.

Morgan County, AL (Zone 8a) Long season
224 days
Last Spring Frost March 27
224 growing days
First Fall Frost November 6
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Morgan County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (194 days to spare)
Start indoors: Feb 9 Transplant: Mar 16 🍅 Harvest: Mar 23 – Apr 20
Recommended (50%) ✓ Fits season (189 days to spare)
Start indoors: Feb 20 Transplant: Mar 27 🍅 Harvest: Apr 3 – May 1
Safe Start (90%) ✓ Fits season (187 days to spare)
Start indoors: Mar 14 Transplant: Apr 18 🍅 Harvest: Apr 25 – May 23

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 Morgan County

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

Soil pH

Your soil pH (5.7–6.7) overlaps with Microgreens's range (6.0–7.0), though not a perfect match.

Soil Texture

The clay loam soil in Morgan County is excellent for Microgreens — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.1%). 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

44
successive plantings in your 224-day season

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

For a dedicated fall crop, sow by Aug 28.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/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 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" 0" ❄️ Dormant
Feb 3.9" 0" ❄️ Dormant
Mar 4.3" 5.6" 0" ✅ Rainfall sufficient
Apr 4.3" 4.3" 0" ✅ Rainfall sufficient
May 4.3" 4.4" 0" ✅ Rainfall sufficient
Jun 4.3" 4.5" 0" ✅ Rainfall sufficient
Jul 4.3" 5" 0" ✅ Rainfall sufficient
Aug 4.3" 5.3" 0" ✅ Rainfall sufficient
Sep 4.3" 4.2" 0.1" 💧 Light watering
Oct 4.3" 3.9" 0.4" 💧 Light watering
Nov 4.3" 3.9" 0.4" 💧 Light watering
Dec 4.7" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Morgan County). 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 ~256 GDD — county provides 4,088 GDD Excellent fit

Microgreens Planting Timeline — Morgan County, AL

Microgreens Planting Calendar

Activity When Date Range
Start Indoors February 20 Feb 20 – Mar 6
Transplant Outdoors March 27 Mar 27 – Apr 10
Direct Sow March 13 Mar 13 – Apr 3
Harvest April 3 Apr 3 – May 1
Fall Sowing August 28 Aug 28 – Sep 11

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

Month-by-Month Timeline

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

🗺️ USDA Zone

Zone 8a

📆 Growing Season

224 days in Morgan County

Growing Tips for Microgreens in Morgan County

Direct sow Microgreens outdoors after March 27 in Morgan County when soil has warmed and frost danger has passed.

With Morgan County's clay soil (27% clay), work in 3-4 inches of compost before planting Microgreens. Avoid tilling when soil is wet to prevent compaction.

Your generous 224.0-day season in Morgan County 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 Morgan County, AL?

Morgan County is in Zone 8a with an average last frost of March 27. Plan your Microgreens planting based on this frost date — see the calendar above for exact timing.

What planting zone is Morgan County, AL?

Morgan County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 27 and first fall frost is November 6.

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Your Morgan County Garden Planner — Free

A 24-page printable planner built for Morgan County (Zone 8a). 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 Morgan County, AL. 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.