Spider Lily Hymenocallis longipetalaPart Shade to Full Shade in Summer. White Spider-Like Flowers in Summer. Height 24 to 36in. Spread 18 to 24in. Likes water. Great water edge plant.Light Needs: Part shade to full shade. Watering Needs: Likes water. Great water edge plant.Average Landscape Size: Grows 24 to 36in. tall and 18 to 24in. wide. Key Features: White Spider-Like Flowers.Blooms: Blooms in spring. Poisonous: No.