Wampee, Heart-Leaved Pickerel Weed, Pickerel Rush
Pontederia cordata is a clump-forming aquatic marginal species, often planted in water features ponds. It typically grows to a height of around 1.2m, producing lance to oval-shaped foliage and attractive tubular purple-blue flowers. Leaves measure approximately 18cm long and the flowers are borne on spikes up to 15cm tall. Flowering occurs in the summer, grow in full sun for optimal results. Although a highly prized plant in a contained space, it can easily become invasive. In South Africa it is listed as problematic in KwaZulu-Natal, Mpumalanga and Gauteng.
Divide clumps in late spring.
Tolerant of low soil oxygen, often found in areas where water levels fluctuate naturally, with spring flooding and later summer emergence.
Attracts useful insects
Lovely hunting scouting site for dragon flies.
Clay, Loam, Water
Soil PH preference
Neutral, Acid, Alkaline
Generally problem free.