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When to Plant Microgreens in Fluvanna County, VA

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.

Fluvanna County, Virginia is in USDA Zone 7a. The average last spring frost is April 9 and the first fall frost is November 1, giving you a growing season of approximately 206 days.

At an elevation of 630 feet, Fluvanna County receives approximately 48 inches of rainfall annually with predominantly silt loam soil. Summer highs average 92ยฐF, providing good warmth for Microgreens during the growing season.

Fluvanna County, VA (Zone 7a) Long season
206 days
Last Spring Frost April 9
206 growing days
First Fall Frost November 1

Fluvanna County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (170 days to spare)
Start indoors: Feb 27 Transplant: Apr 3 🍅 Harvest: Apr 10 – May 8
Recommended (50%) ✓ Fits season (171 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: Apr 16 – May 14
Safe Start (90%) ✓ Fits season (171 days to spare)
Start indoors: Mar 18 Transplant: Apr 22 🍅 Harvest: Apr 29 – May 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 Fluvanna County

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

Soil pH

Your soil pH (5.3โ€“6.5) is more acidic than Microgreens prefers (6.0โ€“7.0). Add garden lime to raise pH.

Soil Texture

The silt loam soil in Fluvanna County is excellent for Microgreens โ€” 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

40
successive plantings in your 206-day season

Sow every 0.7 weeks. Last sowing by Oct 11 to harvest before frost.

For a dedicated fall crop, sow by Aug 23.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 39 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 โ€” 3.6" 0" โ„๏ธ Dormant
Feb โ€” 4" 0" โ„๏ธ Dormant
Mar โ€” 4.8" 0" โ„๏ธ Dormant
Apr 4.3" 3.7" 0.6" ๐Ÿ’ง Light watering
May 4.3" 4.2" 0.1" ๐Ÿ’ง Light watering
Jun 4.3" 4.6" 0" โœ… Rainfall sufficient
Jul 4.3" 4.6" 0" โœ… Rainfall sufficient
Aug 4.3" 4.5" 0" โœ… Rainfall sufficient
Sep 4.3" 3.9" 0.4" ๐Ÿ’ง Light watering
Oct 4.3" 2.8" 1.5" ๐Ÿ’ง Light watering
Nov 4.3" 3.4" 0.9" ๐Ÿ’ง Light watering
Dec โ€” 3.9" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Nov in Fluvanna County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 3,914 GDD Excellent fit

Microgreens Planting Timeline โ€” Fluvanna County, VA

Microgreens Planting Calendar

Activity When Date Range
Start Indoors March 5 Mar 5 โ€“ Mar 19
Transplant Outdoors April 9 Apr 9 โ€“ Apr 23
Direct Sow March 26 Mar 26 โ€“ Apr 16
Harvest April 16 Apr 16 โ€“ May 14
Fall Sowing August 23 Aug 23 โ€“ Sep 6

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Partial Shade (3-6 hours)

๐Ÿ’ง Water

1"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

7โ€“21 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 7a

๐Ÿ“† Growing Season

206 days in Fluvanna County

Growing Tips for Microgreens in Fluvanna County

Direct sow Microgreens outdoors after April 09 in Fluvanna County when soil has warmed and frost danger has passed.

Your generous 206.0-day season in Fluvanna 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 Fluvanna County, VA?

Fluvanna County is in Zone 7a with an average last frost of April 9. Plan your Microgreens planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Fluvanna County, VA?

Fluvanna County, Virginia is in USDA Hardiness Zone 7a. The average last spring frost is April 9 and first fall frost is November 1.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Fluvanna County gardeners in Zone 7a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Fluvanna County, VA. Local conditions may vary. Last updated: April 2026.