Book or Website for Syd garden plants
 

My wife always has gardening questions which she can't find in any of her
books.

Examples of questions a

A screening plant to 3 metres without an aggressive root system for large
planter box.

Plants for the boundary of the yard which will not propagate into adjoining
bushland.

General descriptions of light required, soils, water requirements, etc.

Any suggestions would be appreciated.

Nev