Vitex agnus-castus First Editions© ‘Delta Blues©’ (PBR) is a sun-loving deciduous shrub selected for its rich blue summer flowers and relaxed, natural form. From mid to late summer, tall upright flower spikes appear on new growth, carrying deep blue blooms that bring colour and movement when many other shrubs have finished. The aromatic grey-green foliage provides a light, open framework that keeps the plant attractive even outside its flowering period. Best grown in a warm, sheltered position with free-draining soil, this variety responds well to firm spring pruning and tolerates dry conditions once established. ‘Delta Blues©’ is an excellent choice for gardeners seeking late-season colour, pollinator value, and a Mediterranean feel with minimal maintenance.