Erect, perennial, clump-forming grasses < 1 m tall. Rhizomes are fleshy.
Note: Spartina is under Sustained Control in the Kaipara Harbour.
To help protect our environment:
Saline wetlands, estuaries.
Vegetative spread from rhizome fragments, dispersed by water. S. anglica and S. alterniflora can set seeds, also dispersed by water. Human-mediated dispersal through deliberate plantings.
Forms dense swards. Traps sediment, raising levels above the high tide mark and reducing large estuaries and shallow harbours to thin drains surrounded by rough pastures. Destroys intertidal zonation and habitat and smothers tauranga mātaitai shellfish beds. Can lead to immense biodiversity loss.
Spray on an outgoing tide. Follow up each year in February and November.
Do not attempt to undertake control of this species (excluding Kaipara Harbour). Please report to Auckland Council.
CAUTION: When using any herbicide or pesticide please read the label thoroughly to ensure that all instructions and safety requirements are followed.