Add sidebar items to blog only

I have a site created in WP with several static pages and a blog page. When I add something to the sidebar via the widget, it ends up on all pages including the blog. How can I add things to the blog sidebar only and not on the static pages? In the widget area, there is only one sidebar. I still want the ability to add some things to the static pages sidebar just not everything I add to the blog.

Thanks so much in advance!