Water hawthorn

A fascinating South African aquatic plant which seems to flower unpredictably. The white blooms are hawthorn scented, giving them their common name, and the first flush appears from mid-spring onwards with a break in mid-summer. During a mild winter they may continue to appear intermittently. In deeper water the dormant plants survive the winter at the bottom of the pond, but where winters are severe it is a good idea to lift baskets and overwinter the plants indoors.