Gahnia in bioretention


Hi everyone,

Honestly I felt a bit bad making this episode because I thought I was being mean to the species as a whole. Gahnia used to be promoted as a useful bioretention plant but it’s not in favour as much anymore in South East Queensland. In my experience (from when I worked at Logan City Council) I saw it planted my times, but rarely survive. Having said that, I have seen it grow quite well in other parts of SEQ in nature so the lesson here is probably to use the right plant in the right location. Perhaps Gahnia just wasn’t right for bioretention in Logan. Nevermind, it’s still worth knowing how to identify it.


Jack Mullaly

Jack Mullalybioretention, plant, wsud