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When to Plant Tatsoi in Harrisonburg City, VA

Harrisonburg City, Virginia Zone 7a May

Top priorities for Harrisonburg City, Virginia gardeners in May

Here's what deserves your attention in Harrisonburg City, Virginia this month. Everything below is tailored to Zone 7a and timed around your local frost dates.

Avg. last frost April 13
Avg. first frost October 28
Soil temp (4") 63°F
Watering Moderate
Pest pressure Low
Daylight 14.1 hrs
  1. Sow tatsoi in trays indoors

    These need a head start before your last frost (April 13). Sow into cells now so you're ready to transplant in a few weeks.

  2. Basket week: tatsoi

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

June will be here before you know it — start on
  • First harvests: tatsoi

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Tatsoi is a compact Asian green forming beautiful rosettes of dark, spoon-shaped leaves with a mild mustard flavor. It is extremely cold-hardy and versatile.

Harrisonburg City, Virginia is in USDA Zone 7a. The average last spring frost is April 13 and the first fall frost is October 28, giving you a growing season of approximately 198 days.

At an elevation of 414 feet, Harrisonburg City receives approximately 46.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Tatsoi during the growing season.

Harrisonburg City, VA (Zone 7a) Moderate season
198 days
Last Spring Frost April 13
198 growing days
First Fall Frost October 28

Harrisonburg City 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 (129 days to spare)
Start indoors: Feb 28 Transplant: Apr 4 🍅 Harvest: May 9 – Jun 13
Recommended (50%) ✓ Fits season (128 days to spare)
Start indoors: Mar 9 Transplant: Apr 13 🍅 Harvest: May 18 – Jun 22
Safe Start (90%) ✓ Fits season (118 days to spare)
Start indoors: Apr 4 Transplant: May 9 🍅 Harvest: Jun 13 – Jul 18

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 Harrisonburg City

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

Soil pH

Your soil pH (5.3–6.5) is more acidic than Tatsoi prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

The silt loam soil in Harrisonburg City is excellent for Tatsoi — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.3%). Annual compost additions will help Tatsoi.

How to Plant Tatsoi

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

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

Succession Planting Tatsoi

6
successive plantings in your 198-day season

Sow every 4 weeks. Last sowing by Sep 08 to harvest before frost.

For a dedicated fall crop, sow by Aug 19.

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 28 gal / 100 sq ft

Monthly Watering Guide for Tatsoi

Tatsoi needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Tatsoi Needs Rainfall You Supplement Action
Jan 3.4" 0" ❄️ Dormant
Feb 3.8" 0" ❄️ Dormant
Mar 4.8" 0" ❄️ Dormant
Apr 4.3" 3.7" 0.6" 💧 Light watering
May 4.3" 3.5" 0.8" 💧 Light watering
Jun 4.3" 3.5" 0.8" 💧 Light watering
Jul 4.3" 4.8" 0" ✅ Rainfall sufficient
Aug 4.3" 4.9" 0" ✅ Rainfall sufficient
Sep 4.3" 3.6" 0.7" 💧 Light watering
Oct 4.3" 2.4" 1.9" 💧 Light watering
Nov 3.9" 0" ❄️ Dormant
Dec 4.1" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Harrisonburg City). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Tatsoi 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.

Tatsoi needs ~584 GDD — county provides 2,722 GDD Excellent fit

Tatsoi Planting Timeline — Harrisonburg City, VA

Tatsoi Planting Calendar

Activity When Date Range
Start Indoors March 9 Mar 9 – Mar 23
Transplant Outdoors April 13 Apr 13 – Apr 27
Direct Sow March 30 Mar 30 – Apr 20
Harvest May 18 May 18 – Jun 22
Fall Sowing August 19 Aug 19 – Sep 2

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

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors Direct Sow
April Transplant Outdoors Direct Sow
May Harvest
June Harvest
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

35–50 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 7a

📆 Growing Season

198 days in Harrisonburg City

Growing Tips for Tatsoi in Harrisonburg City

Direct sow Tatsoi outdoors after April 13 in Harrisonburg City when soil has warmed and frost danger has passed.

Your generous 198.0-day season in Harrisonburg City allows multiple plantings of Tatsoi. Sow every 17.0 days for continuous harvest.

Common pests for Tatsoi in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow in spring or fall. Tatsoi tolerates frost down to 15F. Harvest outer leaves or cut whole rosettes. Excellent in salads, stir-fries, or lightly wilted.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Tatsoi in Harrisonburg City, VA?

Harrisonburg City is in Zone 7a with an average last frost of April 13. Plan your Tatsoi planting based on this frost date — see the calendar above for exact timing.

What planting zone is Harrisonburg City, VA?

Harrisonburg City, Virginia is in USDA Hardiness Zone 7a. The average last spring frost is April 13 and first fall frost is October 28.

🌱

Your Harrisonburg City Garden Planner — Free

A 24-page printable planner built for Harrisonburg City (Zone 7a). 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 Harrisonburg City, VA. 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.