Tulipa acuminata has narrow, wild, twisting yellow petals tipped with scarlet as if in flame.

Tulipa aucheriana is a botanical tulip with pink flowers on very short stems and elongated twists of bluish green foliage.

Tulipa aucheriana 'Mara' is a multi-flowering botanical tulip in shades of cinnamon red with green highlights.

Tulipa bakeri 'Lilac Wonder' has lavender pink flowers opening to reveal bright yellow centres.

Tulipa chrysantha has alternating red and bright yellow petals.

Tulipa clusiana 'Lady Jane' is a lovely botanical tulip with long stems and pointed petals in light pink and white.

Tulipa clusiana 'Tinka' is a botanical tulip with long stems and pointed petals in lush red and pale yellow.

Tulipa clusiana Tubergen's Gem' is a long stemmed botanical tulip with pointed petals in striking red and yellow.

Tulipa cretica 'Hilde' is a delicate beauty with white petals with deep yellow bases and variable streaks and flushes of pink.

Tulipa 'Calypso' has fiery orange-red flowers with yellow edges all above attractive blue-green foliage.

Tulipa 'Easter Surprise' has bold, lemon-yellow flowers with red, orange or peach highlights sitting just above the blue-green foliage.

Tulipa 'Mary Ann' is a gorgeous tulip in shades of white, pink, and raspberry red with yellow bases all above the blue-green foliage.

Tulipa 'Oratorio' has flowers that can appear reddish, salmony-pink, or salmony-orange depending on the light.

Tulipa 'Oriental Beauty' has beautiful red flowers above attractive blue-green foliage with burgundy-red markings.

Tulipa greigii 'Plaisir' has bold, coral-red flowers with white highlights sitting just above stunning blue-green foliage striped with burgundy and red.

Tulipa hageri 'Splendens' has 3-5 dark coppery red flowers per stem that deepen as they age.

Tulipa heweri is a new species of botanical tulip discovered in 2008 with yellow or ochre flowers and orange on the outer petals.

Tulipa humilis 'Alba Coerulea Oculata' is a rare and beautiful selection with pure white flowers with stelly navy blue centres.

Tulipa humilis 'Lilliput' is a petite botanical tulip with bright, rounded red buds that open to reveal blue centres.

Tulipa humilis 'Persian Pearl' is a petite botanical tulip with bright, magenta flowers with yellow centres.

Tulipa humilis 'Samantha' is a stunning botanical tulip with double flowers of rosy red up to six per bulb!

Tulipa humilis Violacea 'Black Base' has deep magenta-pink flowers with black bases in the interiors.

Tulipa 'Fashion' is a kaufmanniana hybrid with lovely deep pink flowers edged with white.

Tulipa 'The First' is a kaufmanniana hybrid with lovely tricolor flowers in shades of white, red and yellow atop bluish foliage.

Tulipa kolpakowskiana is a botanical tulip with yellow flowers streaked in carmine red atop narrow, undulating leaves.