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When to Plant Garlic Chives in Portsmouth City, VA

Garlic chives are a perennial herb with flat leaves that have a mild garlic flavor. They produce attractive white flower clusters and are used in Asian cooking.

Portsmouth City, Virginia is in USDA Zone 8a. The average last spring frost is March 22 and the first fall frost is November 17, giving you a growing season of approximately 240 days.

At an elevation of 594 feet, Portsmouth City receives approximately 41.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 93ยฐF, providing good warmth for Garlic Chives during the growing season.

Portsmouth City, VA (Zone 8a) Long season
240 days
Last Spring Frost March 22
240 growing days
First Fall Frost November 17

Portsmouth City Soil Profile

Soil Type

Silt Loam

Soil pH

5.4-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (98 days to spare)
Transplant: Mar 23 🍅 Harvest: May 25 – Aug 3
Recommended (50%) ✓ Fits season (100 days to spare)
Transplant: Mar 29 🍅 Harvest: May 31 – Aug 9
Safe Start (90%) ✓ Fits season (84 days to spare)
Transplant: Apr 30 🍅 Harvest: Jul 2 – Sep 10

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
0.5″/week
Rainfall provides
0.7″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Garlic Chives needs ~1,481 GDD — county provides 4,740 GDD Excellent fit

Garlic Chives Planting Timeline โ€” Portsmouth City, VA

Garlic Chives Planting Calendar

Activity When Date Range
Transplant Outdoors March 29 Mar 29 โ€“ Apr 12
Harvest May 31 May 31 โ€“ Aug 9

Plant 0.5" deep ยท 8" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Transplant Outdoors
April Transplant Outdoors
May Harvest
June Harvest
July Harvest
August Harvest
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Low โ€” drought tolerant

Days to Maturity

60โ€“90 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 8a

Growing Season

240 days

Growing Tips for Portsmouth City

Start from seed or divisions. Cut flower stalks before seeds set to prevent aggressive self-seeding. Both leaves and flower buds are edible and flavorful.

Companion Planting

Good Companions

Avoid Planting Near

  • Peas
  • Green Beans

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Frequently Asked Questions

When should I plant Garlic Chives in Portsmouth City, VA?

Portsmouth City is in Zone 8a with an average last frost of March 22. Plan your Garlic Chives planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Portsmouth City, VA?

Portsmouth City, Virginia is in USDA Hardiness Zone 8a. The average last spring frost is March 22 and first fall frost is November 17.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Portsmouth City gardeners in Zone 8a 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 Portsmouth City, VA. Local conditions may vary. Last updated: April 2026.