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When to Plant Tatsoi in Clinton County, PA

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.

Clinton County, Pennsylvania is in USDA Zone 5b. The average last spring frost is April 29 and the first fall frost is October 18, giving you a growing season of approximately 172 days.

At an elevation of 9 feet, Clinton County receives approximately 40.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83ยฐF, so choose short-season varieties of Tatsoi to ensure they mature before fall.

Clinton County, PA (Zone 5b) Moderate season
172 days
Last Spring Frost April 29
172 growing days
First Fall Frost October 18

Clinton County Soil Profile

Soil Type

Silt Loam

Soil pH

5.1-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (98 days to spare)
Start indoors: Mar 22 Transplant: Apr 26 🍅 Harvest: May 31 – Jul 5
Recommended (50%) ✓ Fits season (102 days to spare)
Start indoors: Mar 25 Transplant: Apr 29 🍅 Harvest: Jun 3 – Jul 8
Safe Start (90%) ✓ Fits season (98 days to spare)
Start indoors: Apr 14 Transplant: May 19 🍅 Harvest: Jun 23 – Jul 28

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 17 gal / 100 sq ft
Tatsoi needs ~521 GDD — county provides 2,107 GDD Excellent fit

Tatsoi Planting Timeline โ€” Clinton County, PA

Tatsoi Planting Calendar

Activity When Date Range
Start Indoors March 25 Mar 25 โ€“ Apr 8
Transplant Outdoors April 29 Apr 29 โ€“ May 13
Direct Sow April 15 Apr 15 โ€“ May 6
Fall Sowing August 9 Aug 9 โ€“ Aug 23
Harvest June 3 Jun 3 โ€“ Jul 8

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Start Indoors
April Start Indoors Transplant Outdoors Direct Sow
May Transplant Outdoors Direct Sow
June Harvest
July Harvest
August Fall Sowing
September โ€”
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 5b

Growing Season

172 days

Growing Tips for Clinton 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 Clinton County, PA?

Clinton County is in Zone 5b with an average last frost of April 29. Plan your Tatsoi planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Clinton County, PA?

Clinton County, Pennsylvania is in USDA Hardiness Zone 5b. The average last spring frost is April 29 and first fall frost is October 18.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Clinton County gardeners in Zone 5b 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 Clinton County, PA. Local conditions may vary. Last updated: April 2026.