We have found 12 plants that meet your criteria.

Allium unifolium ‘Allium unifolium’ A longer flowering period that most Alliums £3.75 Buy
Snake's Head Fritillary ‘Fritillaria meleagris’ Nodding multi-coloured flowers £2.50 Buy
Double Late Tulip ‘Tulipa Angelique’ One of the best 'double lates' £4.00 Buy
New
Viridiflora Tulip ‘Tulipa Artist’ Good for adding colour contrast £4.00 Buy
Triumph Tulip ‘Tulipa Blue Ribbon’ Long lasting cut flowers £4.00 Buy
Lily-flowered Tulip ‘Tulipa China Pink’ Pointy sugar-pink petals £4.00 Buy
Greigii Tulip ‘Tulipa Fur Elise’ A low grower for pots and alpine beds £3.50 Buy
Lily-flowered Tulip ‘Tulipa Mariette’ Darker pink lily-shaped flowers £4.00 Buy
Single Late Tulip ‘Tulipa Andre Rieu’ One of the last tulips to flower £4.00 Buy
New
Lily-flowered Tulip ‘Tulipa Ballade’ Listed by the RHS as one of their top 10 tulips £4.00 Buy
Triumph Tulip ‘Tulipa Douglas Bader’ One of the most popular varieties £4.00 Buy
New
Triumph Tulip ‘Tulipa Synaeda Blue’ £4.00 Buy