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When to Plant Microgreens in Van Buren County, AR

Van Buren County, Arkansas Zone 7b May

This month in Van Buren County, Arkansas

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

Avg. last frost April 1
Avg. first frost October 30
Soil temp (4") 67°F
Watering Low
Pest pressure Moderate
Daylight 13.9 hrs
  1. Indoor seed-starting week for microgreens

    A seed-starting mix and a sunny window (or a grow light) are all you need. Keep soil warm — around 70°F — for fast germination.

  2. Start harvesting microgreens

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

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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.

Van Buren County, Arkansas is in USDA Zone 7b. The average last spring frost is April 1 and the first fall frost is October 30, giving you a growing season of approximately 212 days.

At an elevation of 303 feet, Van Buren County receives approximately 50.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Microgreens during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Microgreens root diseases.

Van Buren County, AR (Zone 7b) Long season
212 days
Last Spring Frost April 1
212 growing days
First Fall Frost October 30

Van Buren County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (180 days to spare)
Start indoors: Feb 17 Transplant: Mar 24 🍅 Harvest: Mar 31 – Apr 28
Recommended (50%) ✓ Fits season (177 days to spare)
Start indoors: Feb 25 Transplant: Apr 1 🍅 Harvest: Apr 8 – May 6
Safe Start (90%) ✓ Fits season (179 days to spare)
Start indoors: Mar 12 Transplant: Apr 16 🍅 Harvest: Apr 23 – May 21

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 Van Buren County

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

Soil pH

Your soil pH (5.3–7.0) overlaps with Microgreens's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.4%). 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

42
successive plantings in your 212-day season

Sow every 0.7 weeks. Last sowing by Oct 09 to harvest before frost.

For a dedicated fall crop, sow by Aug 21.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
Watering frequency Only during dry spells
Season total 3 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 4.2" 0" ❄️ Dormant
Feb 3.8" 0" ❄️ Dormant
Mar 4.7" 0" ❄️ Dormant
Apr 4.3" 3.8" 0.5" 💧 Light watering
May 4.3" 3.8" 0.5" 💧 Light watering
Jun 4.3" 5.3" 0" ✅ Rainfall sufficient
Jul 4.3" 4.9" 0" ✅ Rainfall sufficient
Aug 4.3" 4.5" 0" ✅ Rainfall sufficient
Sep 4.3" 3.5" 0.8" 💧 Light watering
Oct 4.3" 3.6" 0.7" 💧 Light watering
Nov 4.1" 0" ❄️ Dormant
Dec 4.3" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Van Buren 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 3,869 GDD Excellent fit

Microgreens Planting Timeline — Van Buren County, AR

Microgreens Planting Calendar

Activity When Date Range
Start Indoors February 25 Feb 25 – Mar 11
Transplant Outdoors April 1 Apr 1 – Apr 15
Direct Sow March 18 Mar 18 – Apr 8
Harvest April 8 Apr 8 – May 6
Fall Sowing August 21 Aug 21 – Sep 4

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors Direct Sow
April Transplant Outdoors Direct Sow Harvest
May Harvest
June
July
August Fall Sowing
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 7b

📆 Growing Season

212 days in Van Buren County

Growing Tips for Microgreens in Van Buren County

Direct sow Microgreens outdoors after April 01 in Van Buren County when soil has warmed and frost danger has passed.

Your generous 212.0-day season in Van Buren 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 Van Buren County, AR?

Van Buren County is in Zone 7b with an average last frost of April 1. Plan your Microgreens planting based on this frost date — see the calendar above for exact timing.

What planting zone is Van Buren County, AR?

Van Buren County, Arkansas is in USDA Hardiness Zone 7b. The average last spring frost is April 1 and first fall frost is October 30.

🌱

Your Van Buren County Garden Planner — Free

A 24-page printable planner built for Van Buren County (Zone 7b). 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 Van Buren County, AR. 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.