835a8494_wers_Guide___Thompson___Morgan__Edible_Tip
[Common Name] Begonia [Botanical Name] Begonia x tuberhybrida [Edible Warning] Only tuberous begonia petals are edible. The petals contain oxalic acid and therefore should only be eaten in moderation and should not be consumed by individuals suffering from gout, kidney stones or rheumatism. [Edible Tip] 
The brightly coloured flowers have a delicious light, lemon taste and a crisp texture. Use snipped petals as a garnish in salads and sandwiches or dip whole petals in flavoured yogurt and serve as an appetizer.
Edible Flowers Guide | Thompson & Morgan
Edible Tip