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When to Plant New Zealand Spinach in Lackawanna County, PA

New Zealand spinach is a heat-tolerant ground-cover plant with thick, triangular leaves that taste similar to true spinach. It thrives in hot weather when regular spinach bolts.

Lackawanna County, Pennsylvania is in USDA Zone 5b. The average last spring frost is May 2 and the first fall frost is October 11, giving you a growing season of approximately 162 days.

At an elevation of 184 feet, Lackawanna County receives approximately 48.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83ยฐF, so choose short-season varieties of New Zealand Spinach to ensure they mature before fall.

Lackawanna County, PA (Zone 5b) Moderate season
162 days
Last Spring Frost May 2
162 growing days
First Fall Frost October 11

Lackawanna County Soil Profile

Soil Type

Silt Loam

Soil pH

5.2-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (63 days to spare)
Start indoors: Mar 2 Transplant: May 11 🍅 Harvest: Jul 6 – Aug 3
Recommended (50%) ✓ Fits season (64 days to spare)
Start indoors: Mar 7 Transplant: May 16 🍅 Harvest: Jul 11 – Aug 8
Safe Start (90%) ✓ Fits season (62 days to spare)
Start indoors: Mar 26 Transplant: Jun 4 🍅 Harvest: Jul 30 – Aug 27

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
1.3″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
New Zealand Spinach needs ~766 GDD — county provides 1,984 GDD Excellent fit

New Zealand Spinach Planting Timeline โ€” Lackawanna County, PA

New Zealand Spinach Planting Calendar

Activity When Date Range
Start Indoors March 7 Mar 7 โ€“ Mar 21
Transplant Outdoors May 16 May 16 โ€“ May 30
Direct Sow May 9 May 9 โ€“ May 30
Harvest July 11 Jul 11 โ€“ Aug 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 โ€”
May Transplant Outdoors Direct Sow
June โ€”
July Harvest
August Harvest
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

55โ€“70 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 5b

Growing Season

162 days

Growing Tips for Lackawanna County

Soak seeds overnight before planting. Direct sow after last frost. Pinch growing tips regularly to encourage bushy growth and tender new leaves.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant New Zealand Spinach in Lackawanna County, PA?

Lackawanna County is in Zone 5b with an average last frost of May 2. Plan your New Zealand Spinach planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Lackawanna County, PA?

Lackawanna County, Pennsylvania is in USDA Hardiness Zone 5b. The average last spring frost is May 2 and first fall frost is October 11.

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Plan Your Garden with Confidence

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