We have found 35 plants that meet your criteria.

New
Yarrow ‘Achillea millefolium Lansdorferglut’ Subtle shades for prairie style planting £6.99 Buy
Price Pruned
Yarrow ‘Achillea millefolium Lilac Beauty’ An unusual lilac, yarrow NOW £5.49 Buy
Yarrow ‘Achillea millefolium Red Velvet’ Deep red, flat heads of flowers and feathery foliage £5.49 Buy
Price Pruned
Allium ‘Allium cristophii’ Huge globes of star-like, lilac flowers NOW £5.99 Buy
Allium ‘Allium hollandicum Purple Sensation’ Rich, deep purple globes £5.99 Buy
Valerie Finnis Artemisia ‘Artemisia ludoviciana Valerie Finnis’ Very drought tolerant £5.49 Buy
Price Pruned
Bergamot ‘Monarda Cambridge Scarlet’ A popular old variety with bright red flowers NOW £5.49 Buy
Price Pruned
Bergamot ‘Monarda Ou Charm’ Pretty, pink flowers and purple bracts NOW £5.49 Buy
Bergamot ‘Monarda Schneewittchen (syn. Snow Maiden)’ Whorls of wonderful, white flowers £5.99 Buy
Price Pruned
Bergamot ‘Monarda Squaw’ Brilliant red flowers. Mildew-resistant NOW £5.49 Buy
Catmint ‘Nepeta subsessilis Cool Cat’ Lavender-blue flowers. Great for a herb garden £5.99 Buy
Catmint ‘Nepeta subsessilis Washfield’ Pretty catmint with bright blue flowers £5.99 Buy
Russian Sage ‘Perovskia Blue Spire’ Violet-blue flowers and silvery foliage. Great planted en masse £7.99 Buy
New
Salvia ‘Salvia nemorosa Amethyst’ Lilac-purple spires of flowers £5.99 Buy
Salvia May Night ‘Salvia x sylvestris Mainacht’ Large indigo-blue flowers £5.99 Buy
Price Pruned
Yarrow ‘Achillea millefolium Cerise Queen’ Flat, magenta flowers on tall stems NOW £5.49 Buy
Sneezewort ‘Achillea ptarmica The Pearl’ Masses of snow-white, button flowers £5.99 Buy
Price Pruned
Yarrow ‘Achillea Terracotta’ Long-lasting, rich terracotta flowers NOW £5.49 Buy
Golden Marguerite ‘Anthemis tinctoria E.C. Buxton’ Cheerful, lemon-yellow daisy-like flowers £5.49 Buy
Wormwood ‘Artemisia Powis Castle’ Silvery, aromatic foliage £5.49 Buy