Retail nursery specialising in Perennials and Alpines all grown peat-free.
From Tully Co., Ireland. It can be a great performer even when temperatures get a bit high. Makes good sized clumps but not invasive.
Award of Garden Merit from The RHS
Blue, white-eyed flowers up to 12cm (5in) from May to July and growing 30cm (12in) wide. Prefers well drained soil in sun.