When to Plant Sweet Alyssum in Alabama

Growing Sweet Alyssum in Alabama: Complete Guide

Sweet Alyssum (Lobularia maritima) is a crop that grows best when sown directly in the garden. Depending on your zone, the right time to direct sow in Alabama falls between January 13, 2027 (Zone 9b) and March 8, 2027 (Zone 7b), once soil temperatures are consistently warm enough for germination.

Because Alabama stretches across 5 USDA hardiness zones (7b, 8a, 8b, 9a, 9b), planting windows can shift by as much as six to eight weeks from one end of the state to the other. Gardeners in the warmer southern zones can start earlier, while those in cooler northern zones should wait until the zone table above shows their last frost has passed.

With 45 days to maturity, Sweet Alyssum fits comfortably within Alabama's growing season in most zones. In the warmest parts of the state, a second planting later in the season may be possible.

Sweet Alyssum requires full sun to partial shade and moderate (1 inch/week) moisture. Southeastern summers are hot and humid; mulch heavily to retain moisture and shade roots during peak heat.

For the most precise planting dates tailored to your exact location, enter your ZIP code on our planting calendar or use the zone table above to find the schedule for your area of Alabama.