when is chaumont sur loire garden festival
Chaumont sur Loire Garden Festival Guide. The festival gardens are open from 21st April to 6 November from 9h30 until - late. 2016 will be the 25th anniversary of the Chaumont sur Loire International Garden Festival and the theme will be Gardens of the coming century. In July and August you can take a candlelit tour of the interior of the chateau and for these night time visits the gardens are beautifully illuminated.