Drumstick Allium (Allium sphaerocephalon)
One of our gardeners, Xandra planted these in the fall of 2013, along our lower path leading from our main building to the herb garden. They bloomed July of 2014.
The bulbs from our local supplier here: Drumstick Allium - Veseys http://bit.ly/1yVLKwe
More information available, on Fine Gardening: (Allium sphaerocephalon) http://bit.ly/1uiexZq