About the project
Planting riparian margins with low lying native vegetation is a well-known and beneficial technique used to stabilise banks, shade water and reduce nuisance weed growth. Unfortunately, many retired land areas (e.g. land next to wetlands and drains/waterways) are steep, difficult to plant and difficult to maintain. Living Water is trialling direct hydroseeding of native sedge seeds at a trial site next to Lake Ruatuna to determine if it is a successful and cost effective restoration approach compared to conventional planting.
We know that planting, particularly native planting, around our freshwater environments is really important. This is a way to speed up the process and hopefully make it easier for everyone.
- Potential cost savings and greater efficiencies
- Increased riparian planting resulting in contaminant reduction and freshwater ecosystem improvements
- First hydroseeding trial in 2017 not successful due to nonviable seed
- Trial repeated in May 2018, plants established at this site. Research thesis on this trial will be available in 2021
- Completed second trial in 2019 at a differenst site near a farm drain/waterway (not on the steep slopes) but due to drought conditions plants were not able to establish
- No further trials will be carried out by Living Water
- Enquiries for further information on hydroseeding can be directed to DairyNZ
- Vlog showing hydroseeding in progress here
Native plants around freshwater bodies provide bank stability, shade, habitat for insects and fish, but also other things like leaf litter. It basically tricks the stream into thinking it's surrounded by native forest.