Silhouette® White Impatiens

Silhouette® White (70003803) is a full-shade, mounding Impatiens walleriana selection with double white flowers. Syngenta describes continuous blooms from spring to frost and use in containers or in-ground plantings; its [product page](https://www.syngentaflowers.com/ams/product/flower/70003803) identifies this exact color and code. ## Site and seasonal display The current [Syngenta listing](https://www.syngentaflowers.com/ams/product/flower/70003803) specifies full shade, a 10–12 in. garden height and width, and flowering from mid-spring through summer. Place it in a shaded container or bed, leaving room for a compact mound. ## Soil and water North Carolina Cooperative Extension recommends moist, well-drained soil amended with organic material and a slightly acidic pH for garden impatiens. The species may wilt in hot, dry spells, so check moisture during warm weather and avoid waterlogged soil. ## Growing season The species is hardy in USDA zones 10–11 and is perennial in tropical climates, but it is usually grown as an annual elsewhere. The [NC State Extension plant guide](https://plants.ces.ncsu.edu/plants/impatiens-walleriana/) gives this wider species context and notes that cold weather is not tolerated. ## Maintenance Keep the root zone evenly moist, especially in containers, without leaving it waterlogged. NC State notes that garden impatiens can become leggy in late summer and recommends trimming the top third when needed to refresh growth.