Alyssum - Carpet of Snow  Easy
  to grow. Pleasantly scented. Plants spread quickly to carpet
  borders with mounds of tiny fragrant blossoms or spill over the
  sides of containers with masses of colour. Plants grown in partial
  shade have deeper, richer colours. Seeds need light to germinate.
  Requires even watering. Blooms all season. 
   Habit: Annual 
  Height: 8 to 15 cm [3-6"] 
  Light: Sun/Part Sun 
  Seed before Transplant: Indoors - 8/10
  weeks 
  Spacing: 5 to 20 cm [6-8"] - Pure white flowers 
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