She says Project Tongariro's eventual aim is to eradicate all the willows - which are invasive and clog the waterways - and restore the wetlands to their former glory.
Funding from the Department of Conservation and the Waikato Catchment Ecological Enhancement Trust is being used for willow removal.
Tongariro Prison is propagating native plant species for the wetland restoration programme.
Inmates have also assisted with ground preparation and ongoing weed maintenance of the planted areas.
The planting days on March 31 and April 1 are going ahead rain or shine. Volunteers are being asked to meet at the Stump Bay car park in Frethey Drive at 9am on both days.
Helpers should bring sturdy shoes, gloves, drinking water and a favourite shovel or grubber.
Project Tongariro will also have some tools. A barbecue lunch on both days is being sponsored by Turangi Marine.
- Anyone who can help or people needing transport should call Shirley on 386 7581 or email shirley@tongariro.org.nz or just meet at Stump Bay.