Curly Water Thyme, Curly Waterweed
lagarosiphon major
This semi-evergreen perennial has fragile branched stems which grow up to 1m (3ft) longand are covered with curling leaves 6-25mm long and 2-3mm wide.
It is widely used as an oxygenator and is one of the most common plants to be bought from aquatic centers, where it is often mis-labelled as Elodea crispa. Forming dense masses of submerged stems it needs to be cut back every autumn.
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Spread indefinite
Water depth to 90cm (3ft)
Hardy
Full sun
Propagation by cuttings at any time during the growing season
