Rhodohypoxis come in reds, pinks and white, but we bet you've never seen a yellow one before! Thin, grassy stalks hold a long succession of distinctive bright yellow stars from spring to late summer. This little gem comes from the cold, high, wet mountains of South Africa. ... Learn More

"White Hyssop". Snow white flowers smother this popular old bushy plant which doubles as both a minty herb and a lovely garden flower, and is especially loved by bees. ... Learn More

A very low-growing, evergreen cushion with dark green leaves and large, fragrant white flowers in spring that sometimes fade to lilac. It does best in full sun with very well-drained soil and is very hardy. In the wild it grows in Spain, France, Italy, Switzerland, Greece and Romania. ... Learn More

Domed clusters of fragrant flowers in all shades of pink, mauve or white, open all summer long. A popular and easily-grown plant, it is particularly useful for providing colourful ground cover in poor soil. This species is native to the Mediterranean region, but is also present in most of Europe, especially along the coasts, from Spain to Greece and also in northern America. ... Learn More

I. umbellata is a small, bushy annual to 30cm, with slender leaves and sweet-scented white, pink, purple or crimson flowers in flattened clusters in late spring and summer. ... Learn More

Garden balsam is a frost-tender annual. The sparsely branched succulent stems can grow up to 30" tall but frequently exceeds this height in the wild. The vibrant cup-shaped flowers come in various shades of white, pink, red, and a bicolor version. It prefers a moist setting and has a low tolerance for drought conditions. An ideal plant for containers and areas along walks or paths. ... Learn More

This fantastic, incredibly rare, fast-growing plant has flowers of the most remarkable sapphire blue with a contrasting white throat, amidst attractive serrated leaves the colour of polished jade. No photoshop-colour needed! Hidden in a remote part of Tibet in the Himalayas lies the world's deepest canyon, the uninhabited Tsangpo gorge, twice as deep as the Grand Canyon! And discovered there as recently as 2003, in the barely-explored Namcha Barwa Canyon was this unbelievable beauty, the first ever deep blue impatiens, that also happens to be easy to grow! Unlike the traditional flat-disk sha ... Learn More

Clusters of exotic-looking, trumpet-like, yellow throated white flowers open from early to midsummer, whilst the thick, bold, divided leaves of this attractive plant form a backdrop for the large, showy blooms. This easy-to-grow gem will bloom for many weeks, beginning in late spring, if regularly deadheaded, and is ideal for adding an exotic touch to a sunny herbaceous border, and is even perfect for growing in a container on a sunny patio. ... Learn More

This new, larger, white form has six petalled, star-shaped, sweetly fragrant white flowers, each petal with a faint green central stripe, flowering in late winter and spring, all on thin stems over grass-like foliage. ... Learn More

This showy climber produces a seemingly endless succession of huge, 10-13 centimetre, white-throated blue trumpets. Plants climb to more than 4.5 metres, producing flowers which open in the morning before fading in the afternoon, from July until October. ... Learn More

Violet, blue or purple flowers open with a large violet-veined and speckled yellow or white patch on the falls, deeply coloured blue standards opening above slender foliage. Making superb strong clumps this is one of easiest-to-grow irises. It comes from West Bengal, near the border with Nepal in the Himalaya region. ... Learn More

This AGM Winner is a vigorous clump-forming, rhizomatous plant, having narrow leaves and branched stems bearing very dark, purplish-blue flowers, each fall having a large white patch and yellow haft. It is closely allied to I. sibirica, its range including Central and Southern Europe to Eastern Siberia and Japan. Few seeds collected. ... Learn More

Plum-scented, reddish-purple flowers with white falls strongly veined with violet, open in June and July. This beardless dwarf spuria iris is native from Spain to Russia and throughout the Caucasus. The name 'Graminea' means 'grass', referring to the grass-like clump of leaves. Few seeds collected. ... Learn More

Rather resembling a dwarf Iris setosa, this lovely iris has large, reflexed, blue-purple flowers, white-blotched at the centre, and all attractively pencilled in deeper purple, with small standards. It does best with ample moisture, but must have adequate sun to flower well. These plants are native to the coastal states of north-east USA and Canada, where they grow in damp places. ... Learn More

These flowers are usually a rich purple, each fall with a narrow white flash at the base, but they can also be blue, purple or violet and generally have unique colour patterns, often being completely white with attractive markings. They are usually grown in shallow waters and seem to prefer marshy or wet soil, although they also do perfectly well in ordinary soil as long as it does not dry completely out ... Learn More