Lathlain House by Anna Mustard and Dennis Silva will be open to the public as part of DesignFreo. Lathlain House by Anna Mustard and Dennis Silva will be open to the public as part of DesignFreo. Credit: Taje SinghFrom a regional garden festival to a much-loved WA race, here are six of the best events taking place in Perth and surrounds this week. Nannup Flower and Garden FestivalUntil Sunday August 16, various times, NannupCelebrate the impending arrival of spring with one of WA’s most charming regional garden festivals. Created by architects Dennis Silva and Anna Mustard for their own young family, it’s an inspiring example of small space living done right.