Just when you think the allium season should be drawing to a close, along comes Allium 'Millenium' to extend the show seamlessly into midsummer with a defiant fresh burst of pink pompon flowers. Not only is this one later flowering that other alliums, but it’s a clump-forming perennial so it’s super strong and forms an impressive group of stems over the years. And if that wasn’t reason enough to be persuaded, it’s a bee and butterfly magnet too. With so many great features, it’s hard to say no to Allium 'Millenium'!

Choose a space for this resilient, hardy and low maintenance perennial allium in a sunny border or large patio container and it will quietly get on with it, requiring very little fuss at all. In garden terms, this is a good doer – a pretty plant with a great personality and an all-round crowd pleaser.