Rustic summer cakes shouldn't be difficult to decorate - we just add a dusting of powdered sugar, or slap some marmalade between cake layers. But if you're looking for an extra touch for a special occasion, see the candied flowers at Market Hall Foods. A sprinkle of candied violets or lilac petals makes any cake dressier for an occasion.
Candied flowers are edible flowers that have been coated with sugar. You can make them yourself, too - check out this recipe and video and tutorial from Martha Stewart Living.