The Temperate Database is in the process of being updated, with new records being added and old ones being checked and brought up to date where necessary. This record has not yet been checked and updated.
Common Name: Horned Pondweed
Zannichellia palustris is a
A cosmopolitan plant, found in most areas of the world, including Britain.
Still or slow-flowing fresh water, or in brackish water[
A submerged water plant, it is a useful oxygenator for cool water ponds[
This plant has proved to be valuable for stabilizing muddy banks and in the purification of polluted water[
Seed - we have no information for this species but suggest sowing the seed as soon as it is ripe in a pot submerged in water. The seed is likely to have a short viability if allowed to become dry. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer.
Division is easy at almost any time in the growing season[