Nice for Borders or fill ins.

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Lobelia Nana Crystal Palace. Annual compact, bushy plant. Ideal for borders, flower beds, mosaics and rockeries. 6" tall.  The intense and plentiful blue flowers create a notable effect. '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.