We have found 17 plants that meet your criteria.

Bleeding Heart ‘Dicentra Ivory Hearts’ Compact variety with ivory lockets £5.99 Buy
Plantain Lily ‘Hosta Big Daddy’ Enormous, grey-green, puckered leaves £5.99 Buy
Catmint ‘Nepeta x faassenii’ Loose drifts of lavender flowers. Great for edging £5.99 Buy
Catmint ‘Nepeta x faassenii Kit Cat’ A dwarf variety with purple flowers £5.99 Buy
Russian Sage ‘Perovskia Blue Spire’ Violet-blue flowers and silvery foliage. Great planted en masse £7.99 Buy
Wild Bleeding Heart ‘Dicentra formosa Aurora’ Arching stems of creamy-white flowers £6.99 Buy
Cider Gum ‘Eucalyptus gunnii’ Attractive flaking bark £8.99 Buy
Shrubby Veronica ‘Hebe pinguifolia Pagei’ Clusters of white flowers and blue-green foliage £7.99 Buy
Shrubby Veronica ‘Hebe Red Edge’ Small hebe with lilac flowers £7.99 Buy
Blue Oat Grass ‘Helictotrichon sempervirens’ Ideal plant for gravel gardens £5.99 Buy
Plantain Lily ‘Hosta Halcyon’ One of the bluest hostas £5.99 Buy
Plaintain Lily ‘Hosta sieboldiana var. elegans’ Heart shaped, pale green leaves and fragrant flowers £5.99 Buy
Siberian Flag ‘Iris sibirica Silver Edge’ Blue flowers edged with white £5.99 Buy
Honey Bush ‘Melianthus major’ Stunning, architectural plant with serrated leaves £9.99 Buy
Price Pruned
Catmint ‘Nepeta Six Hills Giant’ A hardy catmint with lavender flowers NOW £4.99 Buy
Russian Sage ‘Perovskia abrotanoides’ Silvery white aromatic foliage with long lasting blue flowers £7.99 Buy
Blackcurrant ‘Ribes nigrum Ben Connan’ Exceptionally large fruit £5.99 Buy