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1 Small perennial shrub from tuberous roots, growth characteristics and flower color vary by variety or hybrid. 2  Full sun to part shade. 3  Regular water during growth and bloom (flowers in spring).
Hardy water lilies are hybrids of Nymphaea species from the subgenus Castalia; night-blooming tropical water lilies are developed from the subgenus Lotos; and the day-blooming tropical plants arise from hybridization of plants of the subgenus Brachyceras.