We have found 34 plants that meet your criteria.

Allium Purple Sensation ‘Allium hollandicum Purple Sensation’ Rich, deep purple globes £3.50 Buy
Allium cristophii ‘Allium cristophii’ Huge globes of star-like, lilac flowers £5.00 Buy
Allium Globemaster ‘Allium Globemaster’ Enormous, deep violet globes £5.00 Buy
Allium Schubertii ‘Allium schubertii’ The flowers look like giant fireworks £7.50 Buy
Round-headed Leek ‘Allium Sphaerocephalon’ Small, wine-coloured flowers on tall stems £4.00 Buy
Camassia ‘Camassia leichtlinii’ Spires of blue or lilac star-shaped flowers £6.50 Buy
Crocus ‘Crocus vernus Pickwick’ Larger sized, stripey flowers £4.00 Buy
Snake's Head Fritillary ‘Fritillaria meleagris’ Nodding multi-coloured flowers £2.50 Buy
Fritillaria ‘Fritillaria michailovskyi’ A good option for an alpine bed £5.50 Buy
Fritillaria ‘Fritillaria uva-vulpis’ Perfect for an apine bed or rockery £5.00 Buy
Hyacinth ‘Hyacinthus orientalis Woodstock’ Perfect for a 'bruised' coloured border £5.00 Buy
Single Late Tulip ‘Tulipa Andre Rieu’ One of the last tulips to flower £4.00 Buy
Triumph Tulip ‘Tulipa Arabian Mystery’ Sumptuous bi-coloured blooms £5.00 Buy
New
Lily-flowered Tulip ‘Tulipa Ballade’ Listed by the RHS as one of their top 10 tulips £4.00 Buy
Double Late Tulip ‘Tulipa Black Hero’ Almost black double flowers £5.00 Buy
Fringed Tulip ‘Tulipa Blue Heron’ Long-lasting fringed flowers £4.00 Buy
Triumph Tulip ‘Tulipa Blue Ribbon’ Long lasting cut flowers £4.00 Buy
Lily-flowered Tulip ‘Tulipa Burgundy’ Richly coloured lily-shaped flowers £4.50 Buy
New
Single Late Tulip ‘Tulipa Caravelle’ Perfect for adding height to bedding displays £4.00 Buy
Fringed Tulip ‘Tulipa Curley Sue’ Delicately fringed flower petals £4.00 Buy