Water Millfoil

Grows in ponds and winter-wet swamps in full sun or shade. The stems look like emerald-green bottlebrushes, but die back to water level in late Autumn and reshoot in Spring. The many small creamy flowers appear on the stems in Spring and turn red as they dry off. The brittle stems can spread rapidly but it is easy to remove excess growth.

Planting

Plant in the ground or in a pond. In a pond up to 50cm deep, it's easiest to leave the plant in the pot. The stems will grow until they are about 20cm above the water. The pot can be lifted out each month and any growth outside the pot can be trimmed off.