May

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.

Japanese Anemones are among the best late summer and autumn border flowers. The flowers open from round, silk-covered buds and in summer rain, look like pearls glistening in the border. Blooming from August to late October, they help push the show into autumn and provide colour when most gardens begin to fade.

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.

Amaranthus 'Hot Biscuits' is a rather splendid ornamental addition to the garden and the vase. This gorgeous and graceful amaranth feature bold spikes of coppery-bronze branching plumes. They make an excellent cut flower and make exciting vase material that hold their colour longer than other amaranths.

Blending perfectly into the late summer and autumn landscape, the large plumes of Amaranthus 'Autumn's Touch' combine soft pistachio-green and bronze tones to create restful, airy beauty in the garden and make exciting vase material that hold their colour longer than other amaranths and delight the songbirds who flock to feast on their seeds throughout autumn.

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.

The blooms of Amaranthus caudatus 'Mira' have a unique ombre colour that transitions from light sage green, to lilac, to deep purple. The trailing locks are like jeweled necklaces, thick, pendulous tassels that extend 60 to 90cm long. They add exceptional texture and visual interest to gardens and floral designs alike.

This ever-popular annual is perhaps more versatile than you might imagine – good in the border, most effective as a cut flower in arrangements, a good pot-plant and, not often appreciated – if carefully dried, the colour of the spikes remains unchanged for a considerable time.

With cascading tassels of the most wonderful coral-pink. Amaranthus 'Coral Fountain' is a great addition to the garden and a superb filler for the vase. With generous treatment, specimens three or four feet or more with enormous drooping tassels of flowers can be obtained.

This gorgeous award winning Hollyhock has the distinction of being the shortest in the Alcea rosea family. 'Queeny' is a dwarf Hollyhock that reaches only 60cm in height with fully double blooms. Unlike the tall varieties, it is a perennial that can also be used as an annual as it will bloom in its first year.

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.

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.

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 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 '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.

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.

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. 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.

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.