Grey Water Research

Grey water irrigation testing with popular native plants.

By Todd Layt

Summary of results

The best plants for grey water based on this investigation and real world knowledge are listed below. To work out the best plants we have assumed the gardens could be excessively irrigated with grey water or dry for periods of time.

Vic, ACT, Tas, SA, WA, NZ and Southern NSW Sydney to Port Macquarie (NSW) Queensland and Northern NSW
Breeze Tanika** Breeze
Tanika Little Jess Little Jess
Poa Eskdale Wingarra Wingarra
Wingarra Nafray Nafray
Katrinus KatieBelles KatieBelles
King Alfred Tropic Belle* Tropic Belle*
Nafray King Alfred King Alfred
Savanna Blue* Poa eskdale Katrinus**
KatieBelles Katrinus** Katrinus Deluxe**
Tropic Belle* Katrinus Deluxe**  
Katrinus Deluxe Breeze  

* If the Grey water is high in salt, avoid Savanna Blue. (Based on salt trials)

** Good draining soils in raised gardens suggested for these plants.

Please note:
These are only 2nd year preliminary results, and as the research progresses, more plants may be added to this list.

 

To read the entire paper and review the water test results, download the PDF: