Hardy water lilies can grow almost anywhere in the United States because of their cold tolerance. In Southern California, they are virtually evergreen, with some leaves visible even in the middle ...

The Planter’s Palette (28W571 Roosevelt Rd., Winfield, IL 60190; call 630-293-1040 or see www.planterspalette.com) has several varieties of hardy water lilies at $44.99. Learn more ...

Texas hybridizer Kirk Strawn's hardy salmon 'Colorado,' Nelson says, "is probably the No. 1 hardy grown in the U.S. It blooms its head off. We've had up to 15 blooms at once." ...

For a simple bowl, pick a tropical or hardy water lily, which typically costs less than $40. Dedrick said only one or two plants are needed to start, as they are easily divided and propagated.

Some miniature hardy lilies, such as Helvola, are suited to growing in small ponds and even containers. Photographed at Longwood Gardens in Kennett Square, Pa., on June 16, 2021.

You can find Azolla, hardy and tropical water lilies, lotus, and around 200 other pond plants at Sunland Water Gardens (sunlandwatergardens.com). If you have created a successful water pond with flora ...