This year's festival offers much for gardeners, for music lovers, for families, for those who enjoy poetry, good food and a day browsing a wonderful range of craft and garden stands.
Art lovers can browse and buy at the Botanical Art Exhibition and the bookshop will also be worth a visit.
Would you like advice on improving the design of your garden?
Bring photos of your garden. The GLDA -Garden Landscape Designers' Association, Radharc landscaping and Anne Byrne Garden designer will all offer you some tips on how to improve your garden.
(They will also tell you about the government tax break for people who want to upgrade their gardens).
The range of speakers at the festival brings so much knowledge, expertise and interesting perspectives. ( All talks are free)
Author, Plantsman and Gardener Klaus Laitenberger from Green Vegetables is the first speaker on Saturday at 12.30 and he will be followed at 2pm by founder of GIY (Grow it Yourself) Michael Kelly.
Evelyn Cusack, Met Eireann will talk at 3.30pm and medical doctor, acupuncturist and herbalist Dr. Dermot O' Flynn will speak on herbal medicine at 4.30pm.
A special wine reception at 7pm on Saturday evening will be held in the castle before the poetry reading by Whitbread Award winning Poet and Scholar, Bernard O'Donoghue at 8pm.
( there are limited numbers of tickets to reception and poetry reading - 10 euro and early purchase is advised).
On Sunday Fionnuala Fallon of The Irish Times will speak at 12.30 on the World War 1 War memorial gardens.
Garden designer Oliver Schurman will speak at 2pm.
Music lovers are spoiled for choice with the great range of free musical events.
On Saturday, Galways much loved St Patricks Brass Band will give lunchtime concert. At 3pm The internationally renowned RTE Contempo String Quartet will take the stage. On Sunday we will see return of Serenadus Quartet at lunchtime followed by Summer Music surprise from The Army Band of 2nd Command at 2.30pm and guest appearance at 4.30 by the great Galway composer and performer Julie Feeney. Other delights with times yet to be confirmed include The Galway Baytones, Strictly Dixie, Lucca Virgi and friends, Colm Stride O’Brien and maybe more.
Tommy Bakers puppets will delight all age groups. The Gombeens make a welcome return bringing mayhem and anarchy. The fabulous Franzini Brothers will bring their wonderful Cannonball Circus for both days. Oddie Bradell will be back in town. Sundry other diversions for children are planned.
Food is available all day each day and is cooked on site by local artisan chefs.
Kids are admitted FREE to the festival and adults admission is 8 euro.