I completely agree, blue flowers can totally transform a garden with their serene and calming effect. Hydrangeas, bluebells, and forget-me-nots are definitely some of the most popular types, but I'm also a big fan of morning glories and cornflowers, they're so delicate and beautiful. Delphiniums are another favorite of mine, they can grow really tall and add a dramatic touch to any garden. If you're looking to add some blue flowers to your garden, I think a mix of these types would be stunning, and they're all pretty easy to care for too.