The true valerian makes a lovely, pure white alternative to ever- popular Verbena bonariensis. Heads of tiny flowers are a magnet to pollinators and are held on a stiffly branched skeletal structure about 1.2m high above ferny leaves. In good soil this perennial will seed about and light up dark corners. Great weaving its way between taller roses. Ht 1,5m

Slender spires of pure white flower appear in July and August above neat whorls of deep-green leaves. This perennial never needs staking and slowly forms substantial clumps. Ht 1.5m

Mexican Ponytail grass. This small textural mass of blond leaves is popular with garden designers. Great in sunny places such as gravel gardens Year-round interest. Just cut off at the ground in Spring to refresh. Ht 30cm

Unusual and dainty shrub that only reaches a meter high but decks itself in Chamaeleon-like leaves which change from shrimp-pink in spring to cream and finally green by summer when attractive, white spirea-like flowers appear on the branches. Will slowly sucker about in sun or part shade. May - Jul Ht 1m

Perennial Campion Choice, lacy white campion perfect in those difficult dry and shady areas such as at the base of trees. In May and June clumps are covered with the delicate fringed flowers and attractive seed pods follow on 60cm

Only discovered this marvellous little rose recently. With few thorns, a neat ,compact habit and a mass of creamy flowers from May to Christmas this is a great 'doer'. The lack of meaningful scent is its only drawback. (Grown on its own roots) 80cm

Old-fashioned but elegant plant with unique rows of ivory bell flowers hanging from ranks of lustrous leaves in May. This is a tough perennial which is best in shade and a hearty soil. See it growing wild in the woods of the local Nettlebridge Valley 50cm.

Big name for a pretty little ground covering fern. This unusual variety is frilly and a fresh lettuce green all year-round making it a great companion for early spring bulbs and as a tight understorey to roses and shrubs. Ht 25cm. Spread 40cm after 2 years

Named The Obedient Plant because each flower is hinged and can be swivelled to left or right with the push of a finger. 30cm tidy clumps of white spires are at their best in July. Will spread and make large clumps in the heavy soils it enjoys.

Beautiful upright phlox making substantial clumps. This was found in an old garden near Bristol. The usual rich musky scent 1m July - Aug

All phlox are invaluable for their scent and shade tolerance. This variety has pure white scented flwrs which are great for picking with a musky, peppery scent in high Summer. A good upright perennial for sun or shade 50cm

Classic wild-meadow plant, yet this rare form found in a Priston garden is half the size and later and longer in flowering than the normal Oxe-Eye daisy making it a dainty edging perennial to weave through borders or gravel paths to enrich the wildlife value of your garden. 30cm (Leucanthemum vulgare)

Cape daisy. Huge, cheerful flowers in brilliant white backed in mauve are plentiful over a thick mat of evergreen leaves. This South African plant flowers for months from May until October in a sunny place - draping itself down sunny walls if so placed. A dependable front of border plant for full sun and good drainage Ht 20cm. Spread 80cm

This wildflower should be used more in gardens for it flowers for ages with brilliant white saucers all summer and in the sunny spots it loves - gently seeds about. 30cm

Incredibly decorative and elegant woodland sedge. In May, white frilly flowers dangle like cotton-wool wands above neat foliage. These make lovely seed heads through winter. Only 30cm high Evergreen.

Chilean Iris. Unusual evergreen perennial. Makes a grassy mound 80cm high. In spring wiry wands of pure white flowers rise above the leaves. Will eventually seed about and can get quite large. Ht 80cm. Fertile, well-drained soils.

Bounteous shrub with enormous mop-headed creamy flowers which last for months transforming from lime green to ivory white in Autumn then parchment through winter. Easier to prune than conventional hydrangeas. Just cut all stems back by half. For part shade 1.2m

Like a cloud of white butterflies taking to the air - this is a loose and wand-like perennial with a super-long flowering period. June to October Give it space , drainage and good light to shine. Will seed about gently in gravel gardens or containers 30cm (pic with sedums and stipa)

Essential plant for flower arranging. The lime green bracts shine out through any border bringing all the colours to life. Though a short-lived plant this loves to seed about and mingle. Trim back after flowering and it will give a second performance all summer long. Great value and the perfect mixer to give a border sparkle Ht. 30cm (9cm pots supplied)

Dramatic biennial plant that will seed about and pop up in unexpected places. Set in bold, prickly ruffs, the flowers attract myriads of insects and bees in summer. Long flowering and very architectural if a bit prickly! Good for picking Ht. 30cm. Nice winter seed heads (9cm or 1 ltr pot supplied)

Foxgloves in mixed colours with a good chance of a white. Nothing combines simplicity and grandeur to the June garden that these towering wild plants that in good soil will seed themselves readily. As biennials they take a year to grow their handsome leaves before shooting for the skies in year two. Dramatic and loved by wildlife. Ht 1.7m

A black leaved form of cow parsley and a welcome herald of early summer as it drifts and seeds about between other plants. Elegant and delicate and great for pollinating insects. Some seedlings come up green so be sure to weed them out in spring. Flowers May Ht 1.4m

Lovely subtle woodlander providing elegant spires of little ivory and lime green bells in April -to May. Lovely complement to geums and Geranium phaeum. For sun ir shade. Gently seeds about . 30cm

Classic variegated dogwood with bold cream-splashed leaves and red stems in winter. Occasional white flowers and blue berries are a bonus. Ht 1.8m Avoid very dry soils

Garden designers love the elegant upright plumes of this grass. Good for adding accents along a border and the skeleton looks good all through winter. Upright marooon flowers in mid summer 1.5m