'Crystal Palace' lobelia's compact masses of rich, dark blue flowers are charming in containers, window boxes, borders, or baskets. The leaves are bronze-tipped in part shade, intensifying in full sun and topped with masses of flowers that bloom from spring to frost. In mild climates, lobelia will grow and bloom during the winter. Under ideal growing conditions, lobelia will reseed. Royal Horticultural Society Award of Garden Merit winner.
Botanical Name: Lobelia erinus
Hardiness: Perennial in USDA zones 10–11; otherwise grown as an annual
Plant Dimensions: 4"–6" mound
Variety Information: ½" dark blue flowers heavily massed above low-growing foliage.
Exposure: Full sun to part shade
Bloom Period: Spring to frost
Attributes: Attracts Beneficial Insects, Attracts Pollinators, Deer Resistant, Good for Containers
When to Sow Outside: 1 to 2 weeks after your average last frost date. In Mild Climates, sow in late summer for winter color.
When to Start Inside: RECOMMENDED. 8 to 10 weeks before your average last frost date. Ideal soil temperature for germination is 60°–70°F.
Days to Emerge: 15–20 days
Seed Depth: Press lightly into surface
Seed Spacing: Sow in groups of 12–20 seeds, 4"–6" apart
Thinning: Not required.
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