We have found 11 plants that meet your criteria.

silver spear
Astelia chathamica 'Silver Spear' silver spear Dramatic, silvery, spear-shaped leaves £15.99 Buy
masterwort
Astrantia major subsp. involucrata 'Shaggy' masterwort Larger flowers with a ragged appearance £5.99 Buy
pineapple lily
Eucomis bicolor pineapple lily Huge, exotic, spiky flowers £7.49 Buy
spurge
Euphorbia characias subsp. wulfenii spurge Handsome tall evergreen with chartreuse flowers in spring £8.99 Buy
wood spurge
Euphorbia Blackbird ('Nothowlee') (PBR wood spurge A fairly recent introduction £8.99 Buy
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Sicilian honey garlic
Nectaroscordum siculum Sicilian honey garlic An exotic-looking ornamental onion NOW £5.99 Buy
bupleurum
Bupleurum longifolium subsp. aureum bupleurum Distinctive cow-parsley-like flower heads £6.99 Buy
masterwort
Astrantia major subsp. involucrata 'Shaggy' masterwort Dainty white flowers with green tips £9.99 coming soon
pineapple lily
Eucomis autumnalis subsp. autumnalis pineapple lily The flowers are most unusual £7.99 coming soon
spurge
Euphorbia characias Silver Swan ('Wilcott') (PBR) spurge Delightful variegated foliage £8.99 coming soon
mathiasella
Mathiasella bupleuroides 'Green Dream' mathiasella An unusual architectural plant with jade-green, bell-like flowerheads £8.99 coming soon