We have found 128 plants that meet your criteria.

yarrow
Achillea millefolium 'Lilac Beauty' yarrow An unusual lilac, yarrow £7.99 Buy
African lily
Agapanthus 'Megans Mauve' African lily A lovely new cultivar £6.99 Buy
New
African lily
Agapanthus 'Phantom' African lily A luscious evergreen form £8.99 Buy
hyssop
Agastache 'Black Adder' hyssop Distinctive violet, bottlebrush flowers £7.99 Buy
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hollyhock (Althea)
Alcea rosea 'Nigra' hollyhock (Althea) Bees love their flowers NOW £4.99 Buy
hollyhock
Alcea rosea 'Nigra' hollyhock Tall stems bearing near-black flowers £1.49 Buy
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ornamental onion
Allium atropurpureum ornamental onion A smashing new introduction NOW £5.99 Buy
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chives
Allium schoenoprasum chives Edible leaves and button-like flowers NOW £3.99 Buy
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ornamental onion
Allium schubertii ornamental onion Giant pink starbursts NOW £5.99 Buy
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round-headed leek
Allium sphaerocephalon round-headed leek Small, wine-coloured flowers on tall stems NOW £5.99 Buy
New
granny's bonnet
Aquilegia vulgaris var. stellata 'Black Barlow' granny's bonnet Sumptuous dark purple, double... £4.99 Buy
granny's bonnet
Aquilegia vulgaris var.stellata 'Black Barlow' (Barlow Series) granny's bonnet Striking dark purple, double... £7.49 Buy
New
granny's bonnet
Aquilegia vulgaris var. stellata 'Nora Barlow' (Barlow Series) granny's bonnet Fabulous pom-pom flowers £7.49 Buy
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Aquilegia Nora Barlow
Aquilegia vulgaris var. stellata 'Nora Barlow' (Barlow Series) Aquilegia Nora Barlow Unusually colourful flowers NOW £4.99 Buy
granny's bonnet
Aquilegia vulgaris 'William Guinness' granny's bonnet Unusual purple-black flowers £7.49 Buy
masterwort
Astrantia major 'Rubra' masterwort Gorgeous plum-coloured flowers £9.99 Buy
clustered bellflower
Campanula glomerata 'Superba' clustered bellflower Rich purple flowers in June £6.99 Buy
milky bellflower
Campanula lactiflora 'Loddon Anna' milky bellflower Soft lilac flowers on tall stems £6.99 Buy
dalmatian bellflower
Campanula portenschlagiana dalmatian bellflower Vigorous and low-growing £6.99 Buy
New
Campanula sarmatica 'Hemelstraling' bellflower Elegant, upright flowerspikes £5.99 Buy