When to plant river mint in Onkaparinga Hills
- Plant seedlings: mid Mar to mid SepOnkaparinga Hills area, cool Mediterranean
Worked out from 30 years of climate records for Onkaparinga Hills. Microclimates vary: frost hollows and hills run later.
A native mint with a fresh spearmint flavour that grows naturally along creeks. It needs moist soil and some shade in Adelaide. Grow it in a pot or a damp corner and cut it back often for fresh growth.