Floating Pondweed

Species: Potamogeton sulcatus

weed identification

common name
Floating Pondweed
description

Has submerged translucent leaves up to 20cm long and floating thick, waxy leaves up to 10cm long. Fruit has an emergent spike. Can cover the surface of channels, lakes and dams. When water temperatures reach 15°C in spring growth can be rapid. Leaves start to die in the summer.

habitat

Found in ponds, dams, freshwater lakes, and wetlands.

distribution
NSW, QLD, SA, TAS, VIC
native or exotic?
Native
reproduction

Reproduces via seed. Flowering time: September through to April and in July.

dispersal

Birds

benefits

Seeds are a food source for birds

What does Floating Pondweed look like?

Use these images below to help you decide whether you are dealing with Floating Pondweed.

Disadvantages of Floating Pondweed

Full coverage of a pond or dam by Floating Pondweed is uncommon but can cause significant problems such as:

  • Reduce oxygen diffusion
  • Outcompetes other submerged vegetation
  • Block drainage channels
  • Causes fish and other aquatic life death

treatment

AQ200 Aquatic Herbicide + Wetting Agent – Chemical Herbicide designed to kill free floating weeds quickly. Use on mild to severe infestations.

Aquatic Weed Rake – DIY physical removal. Ideal for mild infestations, sensitive water bodies or to aid herbicide treatment.

Aquatic Harvesting – Large amphibious machine that clears the surface of floating aquatic weeds. Book this service for severe infestations or for larger water bodies.

prevention options

Aerating Fountains – Reduces the severity and likelihood of aquatic weed infestations. Use in any body of water.