On 28 July, Virginia Heywood - Guide, Royal Botanic Gardens Melbourne was joined by Greg Boldiston - Longinomus Plants, Ben Brooker - Treasured Perennials Nursery, and Merryle Johnson - Seedscape Seeds.

Text your gardening questions to 0488 809 855, or call 9419 0155 while we're on the air.

Tune in 7:30 - 9:15am Sundays on 855 on the AM dial, 3CR Digital or stream at 3cr.org.au