May

Native to the meadows and woods of the mountains of Europe, Centaurea montana flowers from late spring with large flowers that are fringed in an intense violet-blue with deep purple centres and most attractive, very deeply cut petals. Easy to grow, it is an excellent garden plant as well as cut flower.

Cephalaria gigantea is a gentle giant that has an informal look that is perfect for looser planting styles. With pretty pale butter-yellow scabious shaped flowers, use it as you would Verbena bonariensis planted at the back of a mixed or herbaceous border. The stems are tall but airy and 'see-through'.

'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!

This uncommon Clematis is a graceful, vigorous and very floriferous climber. During summer and all the way through to autumn the plant is covered with golden yellow nodding lanterns. In the autumn the flowers of 'Radar Love' turn into beautiful large tufts of long silvery, silky seed heads that are just as ornamental.

Over the past few years, the new breeding of Coleus has exploded them into hundreds of wild and crazy types of colours and forms. Overwhelmingly the favourite is the Kong series for its sheer presence, each leaf is easily as big as your palm, and probably twice as large as the next biggest Coleus you can buy.

Grown for its outstanding foliage colours, the Kong series of coleus boasts extremely large leaves with irregular edges, each leaf is easily as big as your palm, and probably twice as large as the next biggest Coleus you can buy. 'Kong Red' displays a broad vein of brilliant red down the centre of each leaf.

Featuring huge leaves that are coral in the centre and edged in bright green, Coleus 'Kong Salmon-Pink' is a 'Premium Shade' variety, that are great for large containers and mass plantings, performing best and showing the most intense colour in full shade, they also work well for indoor plant programs. It's hard to go wrong with this plant.

The 'Wizard' Series is an excellent example of the new developments of coleus, it is the best seed raised strain for bedding and containers. From the brilliant apricot-bronze Sunset, to red-veined maroon Velvet Red, each is a distinctive work of art. The heart-shaped leaves show their colour early and keeps its hues right through the worst summer heat and humidity. Available in single colours or as a mix.

Cosmos ‘Antiquity’ is a completely unique colour of Cosmos in the colours of a beautiful faded tapestry. It is a very dwarf variety, growing to only 15in tall and teeming with 2in flowers. The flowers are rich burgundy on opening and change to an antique bronze-salmon when ageing.

In adorable shades of apricot, peach with a soft rose centre, the new Cosmos bipinnatus 'Apricotta' will soon become a firm favourite amongst florists and gardeners. The tall plants are early to flower, they make a wonderful display in borders and the long stems are perfect for cutting .

Cosmos bipinnatus ‘Cosimo’ is a series of colours and forms that and give a wonderful effect when planted in combination or in large drifts. 'Cosimo Collarette' blooms with voluptuous semi double flowers, in light pink with white stripes to pure white edged with pink.

Cosmos "Daydream" is a superb new colour, palest pink with a deep rose pink centre makes this a unique and delicate addition to any garden. The flowers are very early and are freely produced over a long period. Very easy to grow, making it a perfect choice for children or the less experienced gardener.

Cosmos 'Double Click Cranberries' has fabulous eye-catching carmine-red coloured double flowers with some single variations. It is easy to grow and is such a lovely ‘cut and come’ again variety that just flowers and flowers over a long season.

The latest colour in the Cosmos 'Double Click' series, 'Snow Puff' has spectacular white, pom-pom flowers that sit on sturdy stems and make a gorgeous cut flower Perfect for wedding work, this award winning variety will flower over a long season and provide a vibrant display all summer long.

Dwarf cosmos are very easy to grow, quick to flower from seed and thrive even on poor soil. 'Dwarf Sensation Mix' bloom over an extended period of time in shades of carmine, pink, pink blush and white. Growing to only 60cm they can be grown in beds or even large containers.

Feathery petals burst from the golden centres, adding another flounce to the velvety, red-purple silks and satins of this new cosmos. The fantastic strong colour paired with a very early flowering period and medium-high growth earned 'Fandango' a well deserved Fleuroselect award.

Cosmos 'Purity' is a well-named newer hybrid, pure white large blooms on a plant that grows only 3 to 4 ft. tall. From June to October the large, graceful, saucer-shaped flowers are handsomely offset by the masses of mid-green feathery foliage. An excellent addition to the cutting garden.

'Rosetta’ is an outstanding new variety of Cosmos that has earned the Fleuroselect Award for colour pattern, flower size and shape. Subtle, delicately striped blooms in romantic shades of blush pink and rose, some with an inner collarette of smaller fluffy petals, over light airy foliage.

Cosmos bipinnatus 'Xanthos' is a new cosmos that's causing rather a stir in horticultural circles. It adds a completely new colour to the Cosmos range. Unique soft-yellow blooms are produced in profusion on compact dwarf plants. Growing to a height of 60cm tall, this truly exceptional Cosmos has already been granted one of the most prestigious horticultural awards, a Fleuroselect Gold Medal.

This unique variety of cosmos are early to flower with unusual blooms that have a magical iridescence. Magenta, rose and raspberry pinks are overlaid with an apricot- peach undertone. As each flower matures, the colour fades to a warm, antique rose. This variety works well in creating a gentle vintage look in the garden or vase.