"CALLOOH Callay" is an exclamation of delight from Lewis Carroll's Alice in Wonderland.
It's also the perfect name for the garden of Belinda and Richard Pegg.
Nestled in native bushland in Dural, the property is one of 10 gardens in Galston, Arcadia, Glenorie and Dural open for viewing this Friday, Saturday and Sunday through the Galston District Garden Club.
The Peggs, who will open their garden for the first time, built the garden from the ground up.
"I walked down here on a very misty July morning 23 years ago," Mrs Pegg said.
"I stood down at the dam and it was just all rough paddocks, no gardens, and even with all the mist down here, I thought this is lovely, we could make this a home."
Now the property is home to hundreds of irises, a sun-filled north facing tiered garden, a thyme walk and some 60 clematis, 200 iris and more than 300 roses dot this layered canvas.
Disguised by the layers of colour is a 120,000-litre water tank.
Mrs Pegg said she is continuously scouring catalogues for unusual cottage annuals to add to her collection.
"I'm very artistic by nature so my garden is my canvas and my plants are my pallet of colour," she said.
She is most proud of her mass of clematis because they are difficult to grow in Sydney.
The Pegg's garden is also home to pansies, geraniums, dianthus, salvias, bromeliads and lots more.
■ Cost: $5 each or $20, which covers entry to all gardens over three days. Can be purchased at any garden. Children under 18, free.
Details: Gardens are open from 9.30am to 4.30pm. For addresses and a map: galstongardenclub.com.au, hamlin.org.au.