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When to Plant Sweet Alyssum in Delaware

State

Delaware

Cities Covered

57

USDA Zones

7a, 7b, 8a

Plant Type

Direct Sow

📅 Planting Calendar for Delaware

Based on Bear (Zone 7b). Dates may vary by city.

Direct Sow Outdoors Sunday, March 8, 2026

Note: Delaware spans multiple zones (7a, 7b, 8a). Select your city below for more precise dates.

🌿 Plant Details

Scientific Name Lobularia maritima
Days to Maturity 45 days
Sun Requirements Full Sun to Partial Shade
Plant Spacing 6" apart

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Growing Sweet Alyssum in Delaware

Sweet Alyssum (Lobularia maritima) is a popular garden vegetable in Delaware. The state spans USDA Hardiness Zones 7a, 7b, 8a, so planting dates can vary significantly depending on your location.

In most areas of Delaware, you can direct sow Sweet Alyssum outdoors around Sunday, March 8, 2026.

For the most accurate planting dates, enter your ZIP code on our homepage or select your city from the list above.