Pretty but poisonous

This is a photo I took whilst walking through the botanical gardens on my way to work in March this year. I've just re-discovered it on my phone and thought I'd add it to the blog since it's (in my life at least!) pretty rare to see these pretty but poisonous toadstools. I once wrote about them for a school project at age seven, I think mum still has it in a box somewhere..!
The weather at the time was turning autumnal, and this fly agaric appeared over the course of about three or four days.