Retail nursery specialising in Perennials and Alpines all grown peat-free.
Thought to be a seedling of P. 'Stapleford Gem', from Dr Laly Cox's garden in Warwickshire. Very blue flowers that persist well over the summer. Trim to shape once new growth starts in spring.
Blue flowers flushed violet up to 80cm (32in) from June to September and growing 60cm (24in) wide. Prefers well drained soil in sun.