Stiff, leafy, clumping perennial <90cm tall. Erect, sword-shaped, light green leaves with conspicuous mid-vein. Reddish-orange, trumpet-like flowers (Jan-Feb) opposite each other in a zigzag pattern on the stem. Small, green, 3-sided seed capsules.
Roadsides, waste areas, streambanks, forest margins, flood plains, slips.
Seeds spread by water, animals & machinery. Locally spread from corms and garden debris.
Covers large areas of open streamside. Displaces natives such as kiokio & streamside herb communities.
Sites regenerating to canopy over 2 m can normally be left alone, may benefit from thinning where weed is dense. Target areas that could infest streams & follow up to prevent reinfestation (work down stream). Replant with dense groundcover where appropriate. Check soil or road metal sources for contamination.
1. Dig out very small sites. Usually futile in large sites as corms resprout.
2. Weed wipe at full leaf stage (1g metsulfuron + 100ml glyphosate + 1ml penetrant/1L).
3. Spray foliage after flowering (100ml glyphosate/10L). Will require retreatment.
4. Spray at full leaf stage (100ml glyphosate + 4g metsulfuron + 10ml penetrant/10L).
Caution: when using any herbicide or pesticide PLEASE READ THE LABEL THOROUGHLY to ensure that all instructions and safety requirements are followed.