Moonlight Knight Sweet Alyssum

Moonlight Knight® is a heat-tolerant sweet alyssum with soft pastel-yellow flowers and medium-green foliage. Its restrained, mounded-to-trailing growth fits mixed plantings with medium-vigor companions, containers, hanging baskets, and sunny borders. The selection flowers from spring into fall and does not need routine deadheading. ## Garden use Use the low flowering mound at the edge of a container or border, where its fragrant yellow flowers can spill around taller annuals. Full sun to part shade suits it, with a little afternoon shade helpful in hot weather. The official Proven Winners Canada chart lists the selection as 8–12 inches tall and notes medium-green foliage and moderate vigor. [Proven Winners 2023 Lobularia chart](https://www.provenwinners.com/sites/provenwinners.com/files/catalogs_pdfs/s-4_annual_section_2023_canada_i-v_o.pdf) ## Growing conditions Plant in fertile, well-drained soil. Alyssum performs poorly in waterlogged ground; Illinois Extension recommends good drainage and full sun to partial shade. [Illinois Extension alyssum guide](https://extension.illinois.edu/flowers/alyssum) ## Maintenance Water after planting until established, then water when the soil begins to dry. Trim lightly if stems spread beyond their space; remove faded growth only when you want to refresh the mound.