There are now so many to choose from, and some really weird and wild forms. Alas, on this I am a bit of a traditionalist and prefer older forms such as Allium ‘Azureum’, which flowers in June and July and is a real treat coming in at 60cm high.
Allium ‘Graceful Beauty’ is a white variety with delicate flowers and purple anthers, which will grow up to 30cm in June. Ideally, these should be planted at the front or middle of the border, and they also do well as a cut flower.
The third and final Allium I will suggest is ‘Purple Rain’. These have a fantastic impact on gardens and flower from May to June, standing 1 metre high, with a flower ball of 15cm above a really sturdy stem. These work equally well in a border or a container.