Bulbaceous and rhizomatous, perennial, herb. Fl. yellow, May. Roadsides.
General Biology. Growth form. Geophyte. Life form. Annually renewed bulb. Reproduction. Bulbils. Dispersal. Soil. Fire response. Generally survives fire.
Notes. Not known to set seed in Australia.
Additional information. Origin. South Africa. History of use/introduction. Garden escape.
Suggested method of management and control. Spot spray metsulfuron methyl 0.2 g/15 L + Pulse®, or 1% glyphosate. Apply at bulb exhaustion, generally just on flowering. Exercise care if manually removing as physical removal can result in spread of bulbils. Read the manufacturers' labels and material safety data sheets before using herbicides. For further information consult the Australian Pesticides and Veterinary Medicines Authority to determine the status of permits for your situation or state.
Calendar Type | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Comments |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dormant | Y | Y | O | Y | |||||||||
Active Growth | Y | Y | Y | Y | Y | Y | O | U | |||||
Flowering | Y | ||||||||||||
Optimum Treatment | Y |
Legend: Y = Yes, regularly, O = Occasionally, U = Uncertain, referred by others but not confirmed.