Pineapple lily Eucomis bicolor bears a rosette of reddish-puple, strappy leaves, from which purple-tinged flowers are borne on an erect, purple stem. It’s ideal for growing as summer bedding in a sheltered, sunny border, and is also well suited to growing in containers on a sunny patio. Despite its tenderness, Eucomis bicolor is easy to grow. Plant bulbs in pots in spring and move outside once all danger of frost has passed. Water frequently in dry weather. USDA Zones 7-10.