Buy Cosmos bipinnatus 'Purity' from Sarah Raven: Cosmos bipinnatus 'Purity' has large, open flowers of pure white, with delicate apple-green foliage. The classic cut flower and a supremely lovely garden plant, which no one should be without.
( Thank you for the invitation!) Creating a bee-friendly garden means more than just planting flowers. You certainly want to attract them with gorgeous blooms, but while they are in your garden you will want to give them a place to drink: a bee bath.