Denice's Garden 15 Turner Road Carmel can be seen under the Open Garden WA scheme. Open May 6 and 7th and the entry cost is $7. For further details go to www.opengardenswa.org
Visit Stirk Park in Kalmunda to see deciduous trees for dazzling autumn colour.
Kings Park Bushland Nature Trail there is an autumn show of flowering banksias in particular that's well worth the time exploring.Look up Botanic Gardens and Parks Authority - Bushland Nature Trail on your search engine.
Queens Gardens East Perth for an inspiring show of annuals within a colourful garden of heat hardy exotic plants.
Crown Casino Victoria Park gardens running along Great Eastern Highway. Also a great picnic spot.