Perennials

Looking to buy perennials online? We find you perennial garden plants from reputable online garden centres and nurseries offering UK delivery.

Shasta Daisy     Position: full sun or partial shadeSoil: moderately fertile, moist but well-drained soilRate of growth: average to fastFlowering period: June to SeptemberHardiness: fully hardyA striking variety of the ever-popular Shasta daisy. This robust, clump-forming perennial has glossy, almost fleshy, dark green leaves and bright white flowers arranged round a yolk-coloured central disc borne on top of long green stems.` The flowers appear over a long period, usually from early summer to early autumn, and have unusual, ragged petals that look as if they have been shredded. This easy-to-grow daisy looks best planted in bold drifts in a sunny border alongside any yellow Achillea or with ornamental grasses. It also makes a good cut flower. Garden care: Divide congested plants in early spring or late summer. Protect young plants from slugs and snails. Cut down to the ground in autumn....more From: £6.95 Source: Crocus

multibuy 3 plants     Position: full sunSoil: moderately fertile, moist, well-drained soilRate of growth: average to fast-growingFlowering period: June to SeptemberHardiness: borderline hardyTightly packed clusters of lilac-purple flowers on tall, stiff, branching stems from June to September. This stylish perennial has been enjoying a resurgence of interest in recent years. Perfect for a sheltered, sunny, well-drained spot, its open, transparent shape means that it can easily be used at the front or middle of the border despite its height.Garden care: In cold conditions Verbena bonariensis can suffer dieback if cut back in autumn, so it's best to leave the plant until spring and cut back the old growth when you see the new shoots emerging at the base. Also it's a good idea to mulch around the base of the plant with a deep, dry mulch in winter to help protect the plant. Where the plant is grown in partial shade the stems may need to be supported - if this is necessary use natural materials such as brushwood or twiggy pea-sticks....more From: £14.00 Source: Crocus

Dahlia     Position: full sunSoil: fertile, humus-rich soilRate of growth: average Flowering period: June to SeptemberHardiness: half hardyShowy, flamboyant and available in a range of brilliant colours and strong shapes, dahlias are becoming popular again, as a way of adding bold splashes of colour to the garden in summer. 'Arabian Knight has masses of fully double, dark wine-red flowers with slightly incurved petals from June until the first frosts. Under certain light the petals of this small dahlia appear almost black. An ideal companion for plum-coloured flowers and foliage plants, it needs a sheltered, sunny site with fertile, humus-rich soil.Garden care: Stake with canes or brushwood as it becomes necessary.Deadhead and feed regularly to prolong flowering. Provide ahigh-nitrogen liquid feed each week in June, then a high-potashfertiliser each week from July to September. Once the first frosts haveblackened the foliage, carefully lift and clean the tubers and allowthem to dry naturally indoors. Place the dry tubers in a shallow tray,just covered with slightly moist potting compost, sand or vermiculite.Store in a frost-free place, checking frequently over the wintermonths. In warmer areas, tubers may be left to overwinter in theground, although they may suffer from slug damage, particularly inheavy clay soils....more From: £6.95 Source: Crocus

Black Lilyturf     Position: full sun or partial shadeSoil: moist, well-drained, slightly acidic soilRate of growth: averageFlowering period: June to AugustHardiness: fully hardyThis small, easy to grow, clump-forming evergreen perennial has strappy, inky purple, grass-like leaves. In summer, small spikes of bell-shaped, pale mauve flowers appear, followed by spherical, dark blue fruit. This unusual plant looks fantastic with other grasses, especially if grouped in tubs or planted into gravel, and it provides a brilliant contrast with silvery plants in sun, or bright green ferns in shade.Garden care: Top-dress plants in autumn with leafmould....more From: £5.95 Source: Crocus

False Goatsbeard     Position: full sun or partial shadeSoil: moist, humus-rich soilRate of Growth: vigorousFlowering period: JulyHardiness: fully hardyDelicate, feathery, vivid pink plumes appear in midsummer above serrated, bronze- tinted, mid-green leaves. This astilbe is one of the taller varieties. It's ideal for a moist bog garden or moist border, and the foliage contrasts particularly well with plants like rodgersia which have bolder, coarse-textured leaves. Although it can grow in drier soils it does need to be in a shady spot.Garden care:Newly planted astilbes need to be kept well watered until they are established. Lift and divide large clumps every three or four years, discarding old, woody rhizomes. Mulch with well-rotted organic matter in spring....more From: £4.95 Source: Crocus

Yarrow     Position: full sunSoil: well-drained, including dry soilRate of Growth: fast-growingFlowering period: June to AugustHardiness: fully hardyAchilleas are in vogue again, thanks in part to the many different colours and cultivars that have become available in recent years. Achillea was named by Linnaeus, the modern father of horticulture, in honour of the Greek hero Achilles. They are generally short-lived perennials, with flat, plate-like flowerheads held high on tall stems, and ferny foliage beneath. This one has has masses of tiny, orange-red flowers with yellow centres which fade with age. It is long flowering and drought-tolerant. Try it in a sunny spot towards the back of an herbaceous border, in a border of hot colours or among grasses. It makes an excellent cut flower.Garden care: Achilleas do not like wet soil. Stake using bamboo canes or brushwood before the flowers appear. Cut down to the ground in late winter, but resist the urge to do this earlier, as the seed heads look lovely in the winter light. Pull out seedlings as they appear, as they rarely match the host plant. Lift and divide large clumps in late autumn or early spring....more From: £5.95 Source: Crocus

Sneezeweed     Position: full sunSoil: fertile, moist but well-drained soilRate of growth: average Flowering period: June to AugustHardiness: fully hardyA succession of dark copper-red daisy-like flowers up to 8cm (3in) across with prominent, dark brown centres from June to August. This beautiful sneezeweed is ideal towards the back of a sunny, moist but well-drained border. It makes a wonderful companion for ornamental grasses and yellow, white or earth-toned flowers. Bees and butterflies love it and it makes an excellent cut flower too.Garden care: Heleniums are versatile plants that love plenty of sunshine and moist soil. They rarely suffer from pests or diseases, however young plants do need to be protected from slug attack. Tall varieties need to be staked. To encourage the plant to repeat flower deadhead back to side shoots that have flower buds emerging. Cut back by half after flowering to help prevent mildew. Cut down to the ground in late winter. Every two or three years divide the plants in spring to keep them in top condition. When replanting add loads of well-rotted organic matter to the soil to feed them and keep them moist....more From: £5.95 Source: Crocus

White Snakeroot     Position: partial shadeSoil: prefers moist, alkaline soilRate of growth: average Flowering period: July to SeptemberHardiness: fully hardyLong-lasting, pure white flowerheads appear from July to September above attractive bronzy-chocolate foliage. This lovely clump-forming perennial is easy to grow and manage and the flowers are attractive to bees and butterflies. A versatile plant for a mixed border, where it looks great with ornamental grasses and will extend the season of interest.Garden care: Cut back and compost the stems after flowering....more From: £5.95 Source: Crocus

Corsican Hellebore     Position: partial shadeSoil: heavy, neutral to alkaline soilRate of growth: average Flowering period: January to MarchHardiness: fully hardyBowl-shaped, nodding, pale green flowers hang above leathery, prickly-edged, silver leaves from January to March. This Corsican hellebore is mainly grown for its remarkable leaf colour, which catches the winter sun and is perfect for lighting up a woodland garden. It is best grown in partial shade, as sun will scorch the leaves.Garden care: Add lots of well-rotted leaf mould, manure or compost to the planting hole. Apply a generous 5-7cm (2-3 in) mulch of well-rotted organic matter around the base of the plant in autumn....more From: £9.95 Source: Crocus

Meadow Clary     One of the earliest of the salvias to flower. Each slender upright stem carries a series of comparatively large hooded flowers in candyfloss pink, which open in succession up its length. Large rosette of grey green leaves form a dense groundcover canopy. A fine Salvia exhibiting strong and vigorous growth and producing a second flush of flowers later in July and August. Attractive to bees and butterflies. Position: full sunSoil: moderately fertile, moist but well-drained soilRate of growth: average Flowering period: May to July Flower colour: pale pinkOther features: useful early flowering formHardiness: fully hardyGarden care: To prolong flowering, cut out spent flower spikes as soon as they start to fade, leaving foliage to mature into rich autumn tones. Alternatively, cut back the whole plant after early flowering in late May/June to enjoy a second flush of blooms in July and August. Apply a generous 5-7cm (2-3in) mulch of well-rotted garden compost or manure around the base of the plant in spring....more From: £5.95 Source: Crocus

Showing results 1 to 10 of 565