Water hyacinth (Eichhornia crassipes)

Water hyacinth is a floating water weed with blue flowers. It forms dense mats that reduce water quality and affect native aquatic life. It has been recorded in dams and ponds within Hornsby Shire, but could also occur in aquariums, fish tanks, water features, and waterways, dumped in bushland or roadsides, or being sold online. It is illegal to import into the State or sell this plant. Notify Council if you see water hyacinth in Hornsby Shire or see evidence of it being traded (including online), carried, grown, or released into the environment. Try to avoid this plant from being introduced onto to your land. If you find water hyacinth on your property, prevent it from spreading from your land where possible, especially into bushland areas, watercourses, and dams, or spreading seeds or plant fragments down stormwater drains.

For information on the identification and control of water hyacinth, visit https://weeds.dpi.nsw.gov.au/Weeds/WaterHyacinth