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When to Plant Celery in Schenectady County, NY

Celery is a marshland plant that requires consistent moisture and cool temperatures to produce crisp, flavorful stalks. It is a rewarding but demanding garden crop.

Schenectady County, New York is in USDA Zone 5b. The average last spring frost is May 4 and the first fall frost is October 13, giving you a growing season of approximately 162 days.

At an elevation of 61 feet, Schenectady County receives approximately 47.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86ยฐF, providing good warmth for Celery during the growing season.

Schenectady County, NY (Zone 5b) Moderate season
162 days
Last Spring Frost May 4
162 growing days
First Fall Frost October 13

Schenectady County Soil Profile

Soil Type

Silt Loam

Soil pH

4.9-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (21 days to spare)
Start indoors: Mar 24 Transplant: Apr 28 🍅 Harvest: Jul 21 – Sep 15
Recommended (50%) ✓ Fits season (22 days to spare)
Start indoors: Mar 30 Transplant: May 4 🍅 Harvest: Jul 27 – Sep 21
Safe Start (90%) ✓ Fits season (23 days to spare)
Start indoors: Apr 15 Transplant: May 20 🍅 Harvest: Aug 12 – Oct 7

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
1.5″/week
Rainfall provides
1.2″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Celery needs ~1,450 GDD — county provides 2,349 GDD Excellent fit

Celery Planting Timeline โ€” Schenectady County, NY

Celery Planting Calendar

Activity When Date Range
Start Indoors March 30 Mar 30 โ€“ Apr 13
Transplant Outdoors May 4 May 4 โ€“ May 18
Direct Sow April 20 Apr 20 โ€“ May 11
Fall Sowing August 4 Aug 4 โ€“ Aug 18
Harvest July 27 Jul 27 โ€“ Sep 21

Plant 1" deep ยท 15" apart ยท Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

High โ€” keep soil consistently moist

Days to Maturity

80โ€“120 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 5b

Growing Season

162 days

Growing Tips for Schenectady County

Start seeds indoors 10-12 weeks before last frost. Keep soil consistently moist and never let it dry out. Blanch stalks by mounding soil or using collars for milder flavor.

Companion Planting

Good Companions

Avoid Planting Near

  • Carrots
  • Parsnip

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Frequently Asked Questions

When should I plant Celery in Schenectady County, NY?

Schenectady County is in Zone 5b with an average last frost of May 4. Plan your Celery planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Schenectady County, NY?

Schenectady County, New York is in USDA Hardiness Zone 5b. The average last spring frost is May 4 and first fall frost is October 13.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Schenectady 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 Schenectady County, NY. Local conditions may vary. Last updated: April 2026.