Plants must be maintained at a maximum height of 500mm.

• Ground cover plants are required to be set back 500mm from back of kerb to allow for opening of car doors.
• Nature strips on a corner property are limited to ground cover plants only, to ensure sight lines for motorists and pedestrians.
• Plants and mulch are to be maintained within the nature strip area and not encroach on the pedestrian footpath, kerb or road

https://www.kingston.vic.gov.au/environment/trees-plants-and-nature-strips/nature-strips