Direct Sow In Spring

Achillea millefolium 'Proa' is an improved yarrow, a selected form that is higher yielding, with higher essential oil content, better flower production, and the flowers are more uniformly white. Preferred by those who use yarrow medicinally.

These native wildflowers have clustered flower heads of tiny white flowers that from a distance look like little patches of snow resting on the grass. This famous herb is terrific as a wildflower clump in a blooming meadow, they are also a favourite for cut and dried flower arrangements.

Until a few years ago you would never have seen wild garlic on a menu, but these days is definitely a chefs' favourite. The whole plant is edible, the flavour is softer, more pleasant than cloves from garlic bulbs. The leaves have a vibrant colour that brings food to life, use sparingly in salads, or add to sauces and dressings. It also makes splendid pesto.

Amaranthus caudatus viridis is the green form of the popular drooping amaranthus. The lime green flowers, which slowly fade to cream as they age, form dramatic tassel-like panicles which can grow to 60cm long and seem to drip from the branches in profusion throughout summer and early autumn.

Amaranthus tricolour is grown for its beautiful foliage. 'Summer Poinsettia Mix' is a colourful mix of tropical splendors. Juicy colour combinations: deep green leaves topped with creamy chartreuse, vivid yellow, purple with red, and a tricolor mix of red, green and gold.

Ammi visnaga 'Green Mist' is a new variety of Queen Annes Lace, with larger, darker green and more mounded umbels than its cousin Ammi majus. It flowers from June to September the blooms are initially flattened and lime green, turning white. The textured flower heads are a flower arrangers dream.

Perfect for any sunny spot that needs a burst of colour. Anchusa capensis ‘Blue Angel’ is prized for its long blooming flowers. The brilliant clusters of intense cobalt blue flowers will brighten up any space. Team with other annuals and perennials for eye-popping combinations.

Anchusa italica is a wonderfully statuesque plant with vibrant, gentian blue flowers, dense foliage and lance shaped mid green leaves. 'Dropmore' is a 1905 selection that is still available today. They will thrive in a sunny border and make a great companion to rich plums and purple tones.

Anchusa officinalis is noted for its deep sapphire-blue flowers that are extremely attractive to wildlife. This relative of borage blooms from late spring right through until first frosts. In the garden it can be used as part of wildlife friendly planting scheme, they are much loved by almost all bee species.

Incredibly easy to grow the Annual Dwarf Flowers Mix grows to around 30cm (12in) tall. Flowering just 10 to 12 weeks from sowing, these fast-growing plants provide an easy and cost-effective way to give naturalistic planting, plug gaps and fill the border with a summer full of colour.

With a range of interesting colours, heights and textures, annual ornamental grasses are very easy to grow. Many have graceful, pendant, nodding flowers which are extremely useful in the garden and are a dream for flower arrangers.

The Semi-Tall Flowers Mix is a richly flowering mixture of that produces large quantities of 50cm (20in) tall annual flowers for the border or for cutting. As well as being ornamental, they will provide nectar and pollen for bees, butterflies and other insects from early in the year to late in the season.

Composed of a finely balanced selection of annual flowers designed to provide a long succession of flowers from June to September, the Tall Flowers Mix grows 60 to 70cm (24 to 28in) tall and produces large quantities of flowers that are ideal for the border and for the vase.

The corn chamomiles are lovely plants for a sunny well-drained border, covered with bright, single daisy-like flowers and attractive ferny grey-green foliage throughout the main summer season. An ideal plant for naturalised plantings, wild flower meadows or just a wild part of your garden.

Anthriscus sylvestris 'Ravenswing' is the most elegant and garden-worthy form of cow parsley. With stunning, almost black, finely cut ferny foliage the first year, it explodes the second year with delicate clusters of small white flowers held above the darkest of foliage. Use them for fillers in bouquets as you would Queen Anne’s lace.

Antirrhinum majus ‘Tetra Mix’ produce tall, stately plants with ruffled blooms in a rich variety of colours. The robust plants grow to around 90cm tall. Superb for contrast and for giving height to the border, they are grown year-round by florists as a cut flower and are an all-around excellent garden performer.

Arabis is a very popular and useful plant and one of the best for the rockery. It is related to Aubrieta and is used in a similar fashion. 'Grandiflora Rosea' is a pink flowered cultivar that makes a good groundcover, it can be used in borders and is excellent for trailing over the edges of containers, over stones or down walls.

Armeria Maritima 'Alba' is a beautiful white cultivar. One of the easiest grown perennials and a valuable rockery plant, and one that should always be included if choice is restricted. This compact, evergreen perennial grows in low clumps and sends up long stems from which globes of pure white blooms.

Asperula orientalis, commonly known as Blue Woodruff is a charming little plant. A versatile and easy to grow annual which forms spreading mounds of airy foliage smothered in sweetly scented, clusters of tubular, sky-blue flowers.