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When to Plant Scallions in Anne Arundel County, MD

Scallions (green onions) are mild-flavored alliums harvested for their slender green tops and white bases. They are quick-growing and perfect for succession planting.

Anne Arundel County, Maryland is in USDA Zone 7a. The average last spring frost is April 3 and the first fall frost is November 3, giving you a growing season of approximately 214 days.

At an elevation of 435 feet, Anne Arundel County receives approximately 41 inches of rainfall annually with predominantly silt loam soil. Summer highs average 93ยฐF, providing good warmth for Scallions during the growing season.

Anne Arundel County, MD (Zone 7a) Long season
214 days
Last Spring Frost April 3
214 growing days
First Fall Frost November 3

Anne Arundel County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (131 days to spare)
Start indoors: Feb 22 Transplant: Mar 29 🍅 Harvest: May 24 – Jun 21
Recommended (50%) ✓ Fits season (130 days to spare)
Start indoors: Feb 27 Transplant: Apr 3 🍅 Harvest: May 29 – Jun 26
Safe Start (90%) ✓ Fits season (131 days to spare)
Start indoors: Mar 14 Transplant: Apr 18 🍅 Harvest: Jun 13 – Jul 11

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
0.8″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 372 gal / 100 sq ft
Scallions needs ~1,185 GDD — county provides 4,226 GDD Excellent fit

Scallions Planting Timeline โ€” Anne Arundel County, MD

Scallions Planting Calendar

Activity When Date Range
Start Indoors February 27 Feb 27 โ€“ Mar 13
Transplant Outdoors April 3 Apr 3 โ€“ Apr 17
Direct Sow March 20 Mar 20 โ€“ Apr 10
Fall Sowing August 25 Aug 25 โ€“ Sep 8
Harvest May 29 May 29 โ€“ Jun 26

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

50โ€“70 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 7a

Growing Season

214 days

Growing Tips for Anne Arundel County

Direct sow every 3 weeks for continuous harvest. Thin to 1 inch apart or grow in clusters. Harvest when pencil-thick by pulling or cutting at soil level.

Companion Planting

Good Companions

Avoid Planting Near

  • Peas
  • Green Beans

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Frequently Asked Questions

When should I plant Scallions in Anne Arundel County, MD?

Anne Arundel County is in Zone 7a with an average last frost of April 3. Plan your Scallions planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Anne Arundel County, MD?

Anne Arundel County, Maryland is in USDA Hardiness Zone 7a. The average last spring frost is April 3 and first fall frost is November 3.

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Plan Your Garden with Confidence

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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 Anne Arundel County, MD. Local conditions may vary. Last updated: April 2026.