September

Achillea ‘Cerise Queen’ is a carefree and generously blooming perennial which requires little maintenance to create an explosion of late summer colour. The large, flat-topped clusters of vibrant, pink flowers with tiny white centers are irresistible to butterflies, and also make excellent cut flowers.

Achilleas are traditional border flowers valued for their feathery foliage and striking flat, circular heads of flowers ‘F2 Summer Berries’ is a compact variety growing to only 60cm tall at maturity. This beautiful improved mixture includes the richer tones of red, cerise and pink in addition to many pastel shades.

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.

Achillea sibirica var. camtschatica 'Love Parade' is an upright, tufted, perennial yarrow that is native to Siberia. Very different from the common yarrow, with dense clusters of large flat-topped soft pink flowers and glossy, dark green, fern-like leaves, they remain attractive throughout the growing season.

Agastache are very seductive. You start with one, and the next thing you know, you’ve got ten different plants in the flowerbed and are wondering where you can find space to sneak another one in. ‘Apache Sunset’ is one of the best and most durable - coral-peach blooms with rose and violet buds. Just gorgeous and, of course, extremely tempting.

It is only within the past decade that a number of new noteworthy members of the genus Agastache have emerged from botanical obscurity. ‘Apricot Sprite’ is an outstanding perennial that provides a sizzling blast of tubular, peachy-apricot flowers. Compact and quick growing, they flower in the first year from seed.

Agastache cana 'Heather Queen' is a dynamic landscape plant and a particularly beautiful form. Dark pink tubular flowers on tall stiff stems from mid-summer until late autumn. Pollinators are drawn to its fragrance, the intense coloration and their sweet nectar.

Originally bred by and developed in Japan, Agastache 'Golden Jubilee' was named to honour Queen Elizabeth II's 50th year of rule, celebrating the Golden Jubilee in 2002. This bright gold-chartreuse beauty has one of the most remarkable leaf colour of any plant. Offering late season punctuation the flowers are a powerhouse source of nectar and pollen for bees, butterflies and other beneficial insects.

Agastache ‘Arcado Pink’ is a magnificent first year flowering perennial. An extremely floriferous variety with lovely purple-pink flower spikes and fresh green aromatic foliage. This Fleuroselect Novelty Award Winner is both vibrant in colour and stamina. The aromatic leaves are edible, young growth can be sprinkled in salads, used to decorate cakes, to make a tea or floated in drinks. Agastache added to your Pimms lifts it to a higher sphere altogether.

The Arizona Agastache Collection has been specially bred for their compact habit, extensive flowering time and strong heat tolerance. In three fabulous colours, 'Arizona Sandstone' produces delicate golden yellow flowers. The elegant spires and delicate foliage create a haze of colour all summer and into autumn.

The Arizona Agastache Collection has been specially bred for their compact habit, extensive flowering time and strong heat tolerance. 'Arizona Sun' produces elegant spires of golden yellow. Pick a sprig or two and bring indoors to enjoy in a vase. The flowers are also edible, and will colour a salad beautifully.

The Arizona Agastache Collection has been specially bred for their compact habit, extensive flowering time and strong heat tolerance. 'Arizona Sunset' produces delicate blooms in sunset colours of pink, lavender and peach. The elegant spires are ideal for providing long lasting colour and act like magnets to bees and butterflies.

Agastache 'Astello Indigo' is just about the most exciting breakthrough yet and it's got the award to prove it - Europe's coveted Fleuroselect Gold Medal. Compact and quick growing, they flower in the first year from seed with fabulous, upright spikes that are fully covered with deep indigo-blue flowers. The masses of fragrant blooms throughout the summer are ideal for cutting. They produce copious amounts of nectar for bees and butterflies to feast upon.

Agastache pallidiflora produces a continual mass of lavender-rose, scented flowers from June to September. The soft, touchable flower spikes must be one of the prettiest flowers of all this pretty family. Exceptionally long-flowering, they will flower in the same year given an early sowing and can be used as an annual.

Agastache ‘Liquorice White’ has tall spikes of white lipped flowers and like all Agastache produces copious amounts of nectar for bees and butterflies to feast upon. Flowering late in the season, it is a boon for building up bees’ honey reserves before winter and will produce a honey surplus where drifts are grown.

Agastache 'Liquorice Blue' has tall spikes of lavender to rich purpley blue lipped flowers, above toothed dark green arrow shaped foliage. When brushed past or crushed, the foliage emits a sweet liquorice perfume. A wonderful plant for attracting bees and butterflies to the garden.

Ajuga genevensis is used throughout the world yet this relatively uncommon form is less well known. This very well behaved, evergreen groundcover has deep gentian blue flower spikes and is by far the showiest of the species. It is often the plant of choice for smaller areas or along edges and pathways.

For most of the year Ajuga is a pleasant, quiet achiever, a very versatile low growing ground cover, with evergreen, rosette-like foliage that hugs the ground like an evergreen carpet but those weeks in spring when the blue flowers appear are simply quite magical.

Alcea ficifolia is reliably perennial and unlike the biennial forms which produce a single spire, they produce many upright stems, resulting in a bushy form. ‘Happy Lights’ is a beautiful strain, a bold blend of white, pink, purple, red, and yellow blooms. If sown early they will bloom in their first year.

Alcea rosea ‘Chater's Rose’ is a dramatic, upright plant, with a spike-like inflorescence that is covered with large buds that open, in a staggered manner, from June to September, from the bottom to the top. Fully double and almost pom-pom in appearance, the fine crepe texture of the petals is so delicate that it allows light to pass through.