Crocus chrysanthus 'Blue Marlin' is a delicately coloured cultivar with white to palest lavender interiors and grape purple striped petals.

Crocus chrysanthus 'Fuscotinctus' is a beautiful cultivar with deep golden yellow flowers striped with burgundy red.

Crocus chrysanthus 'Gipsy Girl' has lovely yellow to deep yellow petals with deep purple to purplish-brown feathing on the outer tepals.

Crocus chrysanthus 'Herald' has lovely yellow to deep yellow petals with deep purple reverses.

Crocus chrysanthus 'Romance' sports two colours of yellow: light, creamy yellow and rich, deep buttery yellow.

Crocus corsicus flowers are bright lilac-pink on the inside and light pink on the outside with dark purple feathering.

Crocus korolkowii has orange-yellow flowers with burgundy black bases and the outer petals flecked with burgundy.

Crocus malyi has icy white petals with yellow centres, yellow stamens, and orange pistils.

Crocus minimus hails from Corsica and Sardinia with lavender flowers, the reverses feathered with royal purple.

Crocus sieberi 'Firefly' has striking bicolour buds of orange-yellow and lavender opening to lavender and white petals.

Crocus sieberi 'Ronald Ginns' is a rare and stunning cultivar with white flowers streaked inside and out with purple.

Crocus sieberi ssp. sublimis 'Tricolor' is a spring crocus with vivid purple, yellow and white flowers.

Crocus vernus 'Flower Record' is a giant Dutch crocus with large, grape purple and mauve flowers with orange stamens.

Crocus 'Early Gold' has rich butter yellow flowers with bold purple stripes on the petal reverses. The

Crocus 'Jeanne d'Arc' is a Dutch crocus with large, pure white flowers with a hint of purple at the base and orange stamens.

Crocus 'King of the Striped' has purple bases opening into large white petals variably veined with purple.

Crocus 'Jeanne d'Arc' is a Dutch crocus with large, pure white flowers and orange stamens.

Crocus 'Vanguard' is a distinctive Dutch crocus with large, two-toned flowers with alternating lavender purple and pale soft grey-blue to white petals.

Crossyne flava has huge round spheres of light yellow flowers followed by impressive leaves that look like a starfish.

Crossyne guttata produces huge round spheres of dusky pink to dark red flowers and starfish-like foliage.

Cryptanthus 'Elaine' has deep green-brown leaves with pink margins all overlain with waves and zigzags of white.

Cryptanthus 'Pink Starlight' has olive green to brownish leaves with hot pink margins.

Cryptanthus 'Ruby Red' has stunning foliage in deep coral red with darker centres.

Cryptanthus 'Zebrinus' has rich brown-black leaves overlain with waves and zigzags of white.

Cuphea 'Hummingbird's Lunch' has masses of red and yellow tubular flowers popular with hummingbirds.