Agapanthus africanus ‘Albus’ (African lily) £14.99
Position: full sun Soil: fertile, moist, well-drained soil (or John Innes no 3 compost for containers) Rate of growth: average Flowering period: July to September Hardiness: half hardy (will need protection in winter) A wonderful white form of African lily, with globes of trumpet-shaped flowers from July to September. This bold perennial provides a perfect focal point for a sunny, well-drained border or in a patio container. Where temperatures fall below zero, container-grown specimens should be overwintered in a frost-free place. Garden care: Keep well-watered during the growing season, applying a balanced liquid fertiliser each month from spring until the plant flowers. Overwinter container-grown specimens in a cool greenhouse or conservatory, watering sparingly.

Eryngium agavifolium (sea holly) £7.99
Position: full sun Soil: moist but well-drained, fertile soil Rate of growth: average Flowering period: August Flower colour: greenish white Other features: superb foliage Hardiness: fully hardy An unusual sea holly, which (as the name suggests) closely resembles an agave. The sword-shaped leaves produce a basal rosette and are edged with soft spines. In late summer, upright branching stems carry greenish white flowerheads. This wonderful perennial is valued for its interesting silhouette and architectural foliage. Garden care: Lift and divide large colonies in spring. Avoid the temptation to cut back the flowerheads in autumn as they provide interest in the winter garden.

Bulb starter with rootgrow £6.99
Treats upto 50 bulbs * of bulbs such as crocus and snowdrops treats slightly less for larger bulbs such as Tulips and daffodils. Designed to specifuically help bulbs grow and flower it is based on mycorrhizal fungi with vermiculite to provide good drainage in the root zone and a seaweed meal as a source of natural auxin’s to stimulate root development the product contains humates as a source of organic acids for both the treated bulb and the soil microbes around it. This is the first and currently the only plant or soil treatment to be licensed by The Royal Horticultural Society.

Centaurea montana ‘Jordy’ (knapweed) £6.99
Position: full sun or partial shade Soil: well-drained soil Rate of growth: average Flowering period: May to July Hardiness: fully hardy Magnificent, deepest plum-purple flowers top upright stems in late spring and early summer above bushy clumps of foliage. The flowers have a shaggy appearance and mix well with a whole host of colours including rusts, reds, purples and pinks. A new twist on a cottage garden classic, the seedheads will provide interest for several months after the flowers have faded. Garden care: Stake with brushwood or bamboo canes before the flowers appear. Cut back to the ground after flowering and a second flush may appear. Lift and divide large clumps every three years in spring.

Ammi visnaga (bishop’s weed) £5.99
Position: full sun or partial shade Soil: any moist but well-drained soil Rate of growth: average Flowering period: June to September Flower colour: white Hardiness: hardy annual From amongst ethereal mounds of finely dissected foliage, slender stems arise in summer bearing beautiful clusters of small, white flowers. As these die off, attractive seedheads form, producing tiny fruits, which have been harvested and used in herbal medicines since Egyptian times. A native to the Mediterranean region and the Middle East, this short-lived perennial or hardy annual creates a very soft effect in the border, and will self-seed in good conditions. Garden care: Resist cutting the seedheads back for as long as possible as they will remain interesting well into autumn.

Geum rivale (water avens) £5.99
Position: full sun or partial shade Soil: fertile, reliably moist soil Rate of growth: fast Flowering period: May to July Flower colour: red Other features: rosettes of scalloped, fresh green leaves Hardiness: fully hardy Nodding, bell-shaped, dusky pink to dark orange red flowers on mahogany tinted stems from late spring to midsummer above rosettes of scalloped, fresh green leaves. Water avens is an excellent and attractive groundcover plant for a bog garden. The seed-heads, which resemble little raspberries, are an important decorative feature, retained on the plant all summer. Garden care: Lift and divide large clumps every year in early spring or late autumn.

Euphorbia seguieriana niciciana (spurge) £5.99
Position: full sun Soil: fertile, well-drained soil Rate of growth: average Flowering period: June to September Hardiness: fully hardy A stunning, late-flowering semi-evergreen Euphorbia with open sprays of intense, lime-green flowers held on red-bronze stems in late summer to early autumn. The foliage is handsome, too, with strappy, grey-green leaves held in whorls on the upright stems. This magnificent perennial forms a natural mound, bringing all-year structure to the garden. In the fading autumn light, it glows and looks fabulous among late-flowering perennials and grasses, or with spiky plants. It is drought tolerant once established. Garden care: After flowering remove the faded flower-heads. When working with spurges always wear gloves since the milky sap is poisonous and a potential skin irritant. Euphorbias do not like waterlogged soil.

Luzula nivea (snowy woodrush) £4.99
Position: partial to full shade Soil: poor to moderately-fertile, humus-rich, moist but well-drained soil Rate of growth: slow-growing Flowering period: June to July Hardiness: fully hardy Providing attractive ground cover throughout the year, the slender, hairy leaves form loose clumps, which in midsummer are topped with tall stems carrying elegant clusters of white flowers. It self-seeds freely, so prompt dead-heading will be required if you want to keep the clump small. Garden care: Lift and divide congested colonies between April and June. Remove tatty foliage in autumn.