Evergreen

A Passiflora that produces very fragrant, unusual flowers. The flowers are white, except the base of the corona which is purple; the filaments are curly, as long as the petals, 5 to 7cm across. The edible fruits possess pleasant flavour, kind of sweet and a little tart.

'Emerald Chief' is a good Panicum virgatum selected seed strain. Hardy with sturdy upright deep green growth and great autumn colour. The panicles open red pink in late summer and its foliage turns from green to a lovely deep gold. This chief stands up tall throughout the winter months.

Despite its American provenance Panicum virgatum was originally taken up by German landscapers and gardeners. Renowned for its steely coloured blue-grey to blue-purple leaves, but it is the contrast between the rigid, stainless-steel foliage and purple-pink froth that really charms.

Lavendula angustifolia is an excellent plant for low informal hedging and as a specimen evergreen for borders and formal gardens. Flowering generally begins from mid to late June to early July. The flowers have a rich sweet scent and are highly attractive to bees and other beneficial insects.

The Kniphofia hybrids have extended both the flower colour and height range. The usual fiery reds and oranges work particularly well in a planting scheme based on 'hot' colours - use them to light up sultry August borders. The cooler yellow, cream, ivory and sometimes green flowers is more restful.

Herniaria glabra is a relatively unknown perennial that deserves to be used more often in our gardens. The nursery industry calls it ‘Green Carpet’ and well they should. This lovely bright green creeper spreads effortlessly in all directions. An excellent choice for between flagstones or as a lawn substitute.

One of the grandest of plants, Euphorbia characias 'Wulfenii' has upright stems clothed with whorls of fleshy, mat grey-green leaves that lend the whole plant a textural quality that is unparalleled. From March to June the plants are topped with intense chartreuse-green flowers'.

Long sword-shaped leaves that launch an architectural wonder of tight set thistle-style, white spheres, the flowers of Eryngium yuccifolium are borne on tall branching stems. The unique structure and colour make it highly desirable to gardeners as accent plants in borders and wildflower meadows.

Eryngium variifolium ‘Miss Marble’ is a spectacular evergreen perennial. The neat mound of basal leaves are attractively marbled with silver veining. In summer upright stems bear silvery-blue flowers, each thimble is surrounded by long, slender bracts which splay outwards, adding to the prickly appearance.

Eryngium maritimum is an evergreen perennial plant native to Europe. Often found on sea shores, it is a protected species in many parts of the world. Highly ornamental, it is grown in gardens for its metallic bluish flowers and intensely whitish-glaucous leaves, it is very attractive to bees and butterflies.

Cyperus alternifolius is a very popular both as a house plant and pond plant. The bracts are symmetrically arranged in an umbrella formation and held atop elegant stems that sway with the breeze, giving a tropical touch to the garden. They are also excellent when used in fresh or dried floral arrangements.

'Snow in Summer' lives up to its name in late spring when the foliage is smothered in luminous white flowers. Beautiful used as a path edging, in a stone wall or cascading over containers. Try it amongst your spring bulbs - tall lily flowering tulips above a dense carpet of white Cerastium… Breathtaking!

Carex Prairie Fire is an outstanding specimen plant. A very ornamental grass, in full sun the fine leaved foliage erupts into colour like burning embers. In late summer, panicles of rosy flowers appear just above the foliage. For glorious colour, plant in full sun to partial shade.

Aubrieta has long been treasured for its delightful spring show of brightly coloured flowers. ‘Whitewell Gem’ is smothered by large, intense reddish-purple flowers for several months. Lovely spilling out of crevices or over rock walls, the plants can also be used in paving with other ground hugging plants.

Commonly called ‘Rock Cress’, Aubrieta is a traditional rock garden plant that is lovely spilling out of crevices, growing over rock walls or placed in stonewalls. 'Leichtlinii' forms a low cushion of leaves that is, throughout the summer months, smothered by wonderful deep-carmine flowers.

Aubrieta 'Hendersonii' is a vigorous variety that is smothered by rich lilac-purple flowers for several months in spring. It grows to only 10 to 15cm tall at maturity, but with a spread of around 45cm it makes a lively edging to a sunny border, growing over rock walls or placed in stonewalls.