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When to Plant New Zealand Spinach in Northumberland County, VA

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.

Northumberland County, Virginia is in USDA Zone 7b. The average last spring frost is April 5 and the first fall frost is November 4, giving you a growing season of approximately 213 days.

At an elevation of 207 feet, Northumberland County receives approximately 54.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 92°F, providing good warmth for New Zealand Spinach during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent New Zealand Spinach root diseases.

Northumberland County, VA (Zone 7b) Long season
213 days
Last Spring Frost April 5
213 growing days
First Fall Frost November 4

Northumberland County Soil Profile

Soil Type

Silt Loam

Soil pH

5.4-7.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (118 days to spare)
Start indoors: Feb 7 Transplant: Apr 11 🍅 Harvest: Jun 6 – Jul 4
Recommended (50%) ✓ Fits season (115 days to spare)
Start indoors: Feb 15 Transplant: Apr 19 🍅 Harvest: Jun 14 – Jul 12
Safe Start (90%) ✓ Fits season (128 days to spare)
Start indoors: Mar 8 Transplant: May 10 🍅 Harvest: Jul 5 – Aug 2

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
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
New Zealand Spinach needs ~1,188 GDD — county provides 4,047 GDD Excellent fit

New Zealand Spinach Planting Timeline — Northumberland County, VA

New Zealand Spinach Planting Calendar

Activity When Date Range
Start Indoors February 15 Feb 15 – Mar 1
Transplant Outdoors April 19 Apr 19 – May 3
Direct Sow April 12 Apr 12 – May 3
Harvest June 14 Jun 14 – Jul 12

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate — regular watering

Days to Maturity

55–70 days

Soil pH

6 – 7.5

USDA Zone

Zone 7b

Growing Season

213 days

Growing Tips for Northumberland 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 Northumberland County, VA?

Northumberland County is in Zone 7b with an average last frost of April 5. Plan your New Zealand Spinach planting based on this frost date — see the calendar above for exact timing.

What planting zone is Northumberland County, VA?

Northumberland County, Virginia is in USDA Hardiness Zone 7b. The average last spring frost is April 5 and first fall frost is November 4.

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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 Northumberland County, VA. Local conditions may vary. Last updated: April 2026.