Allotments 4 All

Can anyone say what this plant is, it is in a garden in North Norfolk, the owner of the garden says she did not plant it, but it is very beautiful and the flower  appears very quick, the size of the flower head is a bit bigger than a tennis ball.
Thanks for any help.

it looks a bit like an agapanthus, but I'm sure someone will be along soon who really knows!  it's a lovely colour.

Quote from: gwynnethmary on May 24, 2010, 20:43:35
it looks a bit like an agapanthus, but I'm sure someone will be along soon who really knows!  it's a lovely colour.

I thought of that, but wrong time of year, this is now.

Is it an over exposed allium?  It could be more purple than it looks?

Quote from: Tulipa on May 24, 2010, 21:14:59
Is it an over exposed allium?  It could be more purple than it looks?

No it is defiantly blue, and it is like that now,
Just found this, there are blue alliums,

http://tinyurl.com/2a7dc8k
think I/we might have solved it.
thanks a lot