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When to Plant Tatsoi in Queen Anne's County, MD

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.

Queen Anne's County, Maryland is in USDA Zone 7a. The average last spring frost is March 31 and the first fall frost is November 6, giving you a growing season of approximately 220 days.

At an elevation of 479 feet, Queen Anne's County receives approximately 49.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 93°F, providing good warmth for Tatsoi during the growing season.

Queen Anne's County, MD (Zone 7a) Long season
220 days
Last Spring Frost March 31
220 growing days
First Fall Frost November 6

Queen Anne's 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 (149 days to spare)
Start indoors: Feb 20 Transplant: Mar 27 🍅 Harvest: May 1 – Jun 5
Recommended (50%) ✓ Fits season (150 days to spare)
Start indoors: Feb 24 Transplant: Mar 31 🍅 Harvest: May 5 – Jun 9
Safe Start (90%) ✓ Fits season (150 days to spare)
Start indoors: Mar 9 Transplant: Apr 13 🍅 Harvest: May 18 – Jun 22

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
0.1″/week
Watering frequency Only during dry spells
Season total 100 gal / 100 sq ft
Tatsoi needs ~839 GDD — county provides 4,345 GDD Excellent fit

Tatsoi Planting Timeline — Queen Anne's County, MD

Tatsoi Planting Calendar

Activity When Date Range
Start Indoors February 24 Feb 24 – Mar 10
Transplant Outdoors March 31 Mar 31 – Apr 14
Direct Sow March 17 Mar 17 – Apr 7
Fall Sowing August 28 Aug 28 – Sep 11
Harvest May 5 May 5 – Jun 9

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors Transplant Outdoors 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

Moderate — regular watering

Days to Maturity

35–50 days

Soil pH

6 – 7.5

USDA Zone

Zone 7a

Growing Season

220 days

Growing Tips for Queen Anne's County

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

Level Up Your Garden

Frequently Asked Questions

When should I plant Tatsoi in Queen Anne's County, MD?

Queen Anne's County is in Zone 7a with an average last frost of March 31. Plan your Tatsoi planting based on this frost date — see the calendar above for exact timing.

What planting zone is Queen Anne's County, MD?

Queen Anne's County, Maryland is in USDA Hardiness Zone 7a. The average last spring frost is March 31 and first fall frost is November 6.

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Plan Your Garden with Confidence

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

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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 Queen Anne's County, MD. Local conditions may vary. Last updated: April 2026.