We have found 12 plants that meet your criteria.

Price Pruned
Yarrow ‘Achillea millefolium Lilac Beauty’ An unusual lilac, yarrow NOW £5.49 Buy
Erigeron ‘Erigeron Dunkelste Aller (Darkest of All)’ Large dark violet daisies £6.99 Buy
Lupin ‘Lupinus Inspiration’ £6.99 Buy
Price Pruned
West Country Lupin ‘Lupinus Manhattan Lights’ Bi-coloured blooms NOW £6.99 Buy
West Country Lupin ‘Lupinus Red Rum’ A long flowering variety £6.99 Buy
Evening Primrose ‘Oenothera biennis’ Ephemeral, yellow flowers at dusk and heady fragrance £1.25 Buy
Russian Sage ‘Perovskia Blue Spire’ Violet-blue flowers and silvery foliage. Great planted en masse £7.99 Buy
Spanish Sage ‘Salvia lavandulifolia’ A great alternative to common sage £4.99 Buy
African Lily ‘Agapanthus Lavender Haze’ A new, large-headed variety £6.99 Buy
Russian Sage ‘Perovskia abrotanoides’ Silvery white aromatic foliage with long lasting blue flowers £7.99 Buy
Price Pruned
Russian Sage ‘Perovskia atriplicifolia Little Spire’ A shorter form of the popular Russian sage NOW £7.99 Buy
Wallflower ‘Erysimum cheiri Blood Red’ Look great with tulips £4.99 Buy