Get rid of ginger

While some types of ginger can look nice in your garden you’ll regret having any of the ‘wild’ gingers. Yellow ginger and kahili ginger were both introduced as garden plants but they quickly form dense and impenetrable mats of rhizomes which smother anything else. In the wild these can grow to a metre deep and a hectare in area. All the underground parts can grow from fragments, while kahili ginger also has seeds which are spread by birds. As they are tolerant of shade they then invade our native forests.

Kahili ginger flower
Kahili ginger flower

The kahili ginger flowers from February to April and has perfumed lemon-yellow flowers with conspicuous red stamens. Red seeds then appear in the winter months. Yellow ginger flowers appear May to June and are cream to light yellow in colour.

Wild ginger can be controlled by cutting it down and painting stumps with herbicide. Small plants can be dug up but do not compost the rhizomes.

For more specific advice see the weedbusters website.

Similar Posts

  • |

    No more moth plants

    So far we’ve done well at keeping pest animals out of the sanctuary, but unfortunately the pest weeds are not so easily deterred. So this year we’re asking you to help manage the most invasive weeds along the Whangaparaoa Peninsula. With the assistance of Hibiscus Matters and Auckland Council Biosecurity we’ll be highlighting a different…

  • | |

    Pampas Grass

    Pampas grass is our featured pest plant this month, because right now its seed heads are evident everywhere in our district.   The plants form large grassy clumps with a dead leaf base. Its erect and bushy flower heads are quite attractive and easily recognised, emerging  January to March, but unfortunately they are prolific producers of seeds which then blow…

  • |

    The rat family tree

    The sanctuary is back to its pest-free state and DNA testing has been completed on the 26 Norway rats caught a few months back. With the aid of some earlier profiling of the genetics of rats in the Auckland region it was then possible to work out where our invaders had come from. Luckily the…