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When to Plant Leeks in Newport News City, VA

Newport News City, Virginia Zone 8a May

May in the garden — Newport News City, Virginia

May is a pivotal month for Newport News City, Virginia gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost March 22
Avg. first frost November 17
Soil temp (4") 67°F
Watering Moderate
Pest pressure Moderate
Daylight 14 hrs
June will be here before you know it — start on
  • First harvests: leeks

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Leeks are a mild, sweet allium that produces long white shanks. They are more refined than onions and are a key ingredient in soups, stews, and gratins.

Newport News 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 356 feet, Newport News City receives approximately 41.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Leeks during the growing season.

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

Newport News City Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-7.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (76 days to spare)
Start indoors: Feb 5 Transplant: Mar 12 🍅 Harvest: Jun 11 – Aug 27
Recommended (50%) ✓ Fits season (72 days to spare)
Start indoors: Feb 15 Transplant: Mar 22 🍅 Harvest: Jun 21 – Sep 6
Safe Start (90%) ✓ Fits season (71 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: Jul 9 – Sep 24

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.

Soil Compatibility in Newport News City

How your county's soil matches Leeks's growing requirements.

Soil pH

Your soil pH (5.3–7.1) overlaps with Leeks's range (6.0–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Newport News City is excellent for Leeks — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.3%). Annual compost additions will help Leeks.

How to Plant Leeks

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
0.7″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 154 gal / 100 sq ft

Monthly Watering Guide for Leeks

Leeks needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.

Month Leeks Needs Rainfall You Supplement Action
Jan 3.3" 0" ❄️ Dormant
Feb 3.5" 0" ❄️ Dormant
Mar 3.5" 3.8" 0" ✅ Rainfall sufficient
Apr 3.5" 3.3" 0.2" 💧 Light watering
May 3.5" 3" 0.5" 💧 Light watering
Jun 3.5" 4" 0" ✅ Rainfall sufficient
Jul 3.5" 4" 0" ✅ Rainfall sufficient
Aug 3.5" 4.7" 0" ✅ Rainfall sufficient
Sep 3.5" 3.1" 0.4" 💧 Light watering
Oct 3.5" 2.8" 0.7" 💧 Light watering
Nov 3.5" 3.2" 0.3" 💧 Light watering
Dec 3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Newport News City). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Leeks Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Leeks needs ~2,100 GDD — county provides 4,200 GDD Excellent fit

Leeks Planting Timeline — Newport News City, VA

Leeks Planting Calendar

Activity When Date Range
Start Indoors February 15 Feb 15 – Mar 1
Transplant Outdoors March 22 Mar 22 – Apr 5
Direct Sow March 8 Mar 8 – Mar 29
Harvest June 21 Jun 21 – Sep 6
Fall Sowing September 8 Sep 8 – Sep 22

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.8"/week · Only during dry spells

📅 Days to Maturity

90–150 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

240 days in Newport News City

Growing Tips for Leeks in Newport News City

Direct sow Leeks outdoors after March 22 in Newport News City when soil has warmed and frost danger has passed.

Common pests for Leeks in this region include onion maggots and thrips. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 10-12 weeks before last frost. Transplant into trenches and hill soil around stems as they grow to increase the white portion. Harvest as needed.

Companion Planting

Good Companions

Avoid Planting Near

  • Peas
  • Green Beans

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Leeks in Newport News City, VA?

Newport News City is in Zone 8a with an average last frost of March 22. Plan your Leeks planting based on this frost date — see the calendar above for exact timing.

What planting zone is Newport News City, VA?

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

🌱

Your Newport News City Garden Planner — Free

A 24-page printable planner built for Newport News City (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Newport News City, VA. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.