Clear Crystal® White Alyssum

Clear Crystal® White is a mounded, fragrant sweet alyssum with large white flowers and a compact habit. PanAmerican Seed lists this Lobularia maritima selection at 6–10 inches high and 12–14 inches wide, flowering in early spring, spring and autumn. ## Garden Use The [PanAmerican Seed profile](https://www.panamseed.com/Products/003505332005863/alyssum-clear-crystal-white/) identifies PAS501344 and recommends the Clear Crystal series for containers, hanging baskets and in-ground plantings. Its compact spread can edge beds or fill spaces between taller annuals. The profile describes this tetraploid series as more vigorous than standard diploid alyssums and notes its larger flowers relative to Easter Bonnet. ## Growing Conditions For Lobularia maritima generally, [NC State Extension](https://plants.ces.ncsu.edu/plants/lobularia-maritima/) recommends full sun to partial shade and well-drained soil. It notes that sweet alyssum flowers from spring to first frost where summers are cool, with bloom declining in hot weather. That is species-level guidance; the PanAmerican profile identifies Clear Crystal White as a cool-season crop and lists sun exposure. ## Maintenance Use free-draining soil and check containers regularly so they do not dry out. If flowering slows during hot weather, trim lightly to encourage fresh growth when conditions cool. Remove unwanted seedlings around paths and bed edges, and avoid keeping the roots saturated.