Edible Flowers - Allegedly

When I was a kiddo, I remember my grandmother growing nasturtium and telling me the flowers were edible. I swear I ate one and thought it was good. I ate one yesterday and it wasn't good. What went wrong?

Nasturtium

This is the first nasturtium bloom I've seen this year, and unlike many of my late-bloomers this season, I think it's right on track. It's always a late-summer show with nasturtiums around here. I always tuck seeds around the landscaping and pots and baskets, and this year my daughter helped. Nasturtium seeds are great for kids, easy to handle. And the fun "treat" is that nasturtiums are edible. My grandmother showed me how to pull out the sweet part to snack on, and my daughter likes the trick, too. So much so, that I'm lucky any blooms are left.