Border of Agastache ‘Black Adder’, Artemisia ludoviciana ‘Silver Queen’, Astrantia major ‘Star of Beauty’, Deschampsia cespitosa ‘Goldschleier’, Eupatorium maculatum ‘Atropurpureum’, Geranium ‘Rozanne’, Lythrum salicaria ‘Blush’, Lythrum virgatum ‘Dropmore Purple’ and Sanguisorba menziesii

Border of Agastache 'Black Adder', Artemisia ludoviciana 'Silver Queen', Astrantia major 'Star of Beauty', Deschampsia cespitosa 'Goldschleier', Eupatorium maculatum 'Atropurpureum', Geranium 'Rozanne', Lythrum salicaria 'Blush', Lythrum virgatum 'Dropmore Purple' and Sanguisorba menziesii - © Pernilla Bergdahl/GAP Photos

Border of Agastache ‘Black Adder’, Artemisia ludoviciana ‘Silver Queen’, Astrantia major ‘Star of Beauty’, Deschampsia cespitosa ‘Goldschleier’, Eupatorium maculatum ‘Atropurpureum’, Geranium ‘Rozanne’, Lythrum salicaria ‘Blush’, Lythrum virgatum ‘Dropmore Purple’ and Sanguisorba menziesii – © Pernilla Bergdahl/GAP Photos

Border of Agastache ‘Black Adder’, Artemisia ludoviciana ‘Silver Queen’, Astrantia major ‘Star of Beauty’, Deschampsia cespitosa ‘Goldschleier’, Eupatorium maculatum ‘Atropurpureum’, Geranium ‘Rozanne’, Lythrum salicaria ‘Blush’, Lythrum virgatum ‘Dropmore Purple’ and Sanguisorba menziesii – © Pernilla Bergdahl/GAP Photos