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When to Plant Komatsuna in Fluvanna County, VA

Komatsuna (Japanese mustard spinach) is a versatile Asian green with glossy, dark leaves and a mild, sweet flavor. It is extremely cold-hardy and heat-tolerant.

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 Komatsuna 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 (135 days to spare)
Start indoors: Feb 27 Transplant: Apr 3 🍅 Harvest: May 8 – Jun 12
Recommended (50%) ✓ Fits season (136 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: May 14 – Jun 18
Safe Start (90%) ✓ Fits season (136 days to spare)
Start indoors: Mar 18 Transplant: Apr 22 🍅 Harvest: May 27 – Jul 1

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.

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
Komatsuna needs ~808 GDD — county provides 3,914 GDD Excellent fit

Komatsuna Planting Timeline โ€” Fluvanna County, VA

Komatsuna 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
Fall Sowing August 23 Aug 23 โ€“ Sep 6
Harvest May 14 May 14 โ€“ Jun 18

Plant 0.5" deep ยท 6" apart ยท Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

Moderate โ€” regular watering

Days to Maturity

35โ€“50 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 7a

Growing Season

206 days

Growing Tips for Fluvanna County

Direct sow in spring or fall. One of the most forgiving Asian greens for all seasons. Harvest outer leaves or cut whole plants. Excellent for stir-fries, soups, or salads.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Level Up Your Garden

Frequently Asked Questions

When should I plant Komatsuna in Fluvanna County, VA?

Fluvanna County is in Zone 7a with an average last frost of April 9. Plan your Komatsuna 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.

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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.

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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 Fluvanna County, VA. Local conditions may vary. Last updated: April 2026.