50 Days to maturity. Lobularia maritima. Organic White Alyssum Seeds. Non-GMO, Open-Pollinated, Heirloom, Annual. Alyssum is a drought-tolerant annual. It is naturalized in the United States and can also be known as Sweet Alyssum, referring to the sweet scent it gives off. The tiny white flowers bloom early in spring and grow low to the ground creating a gorgeous mounding ground cover of white. Approximately 70,000 seeds/oz.