May

Helianthus annuus 'ProCut White Nite' is a professional, pollenless cut-flower variety that is used by florists all over the world. The cream petals mature to white and contrast beautifully with the dark brown centre. They plants are uniform and vigorous in growth even under low temperatures.

Looking a little like a solar eclipse, ‘Ring of Fire’ is a dark centred sunflower that blooms with glowing red petals that gradually flare outwards to golden-yellow tips. Growing to a manageable 100 to 120cm (3½ to 4ft) tall with a branching habit, the flowers are pollenless. It is considered one of the best varieties for use as a cut flower.

Helianthus annuus 'Ruby F1' has a dark centre is surrounded by a dense array of rich deep ruby-red petals that form large 15cm (6in) flowers, on plants that are 150cm (5ft) tall. Suitable as a bouquet flower, cut the flowers as soon as all the petals unfurl. sown directly where they are to grow, they are very easy to grow and fast to flower.

Helianthus ‘Solara’ is a professional quality sunflower and one of the longest lasting cut flower varieties available. A pollenless, uniflora type that grows to around 130 to 150cm tall. It has a dark centre, surrounded by a dense array of rich golden yellow petals that form large 15cm flowers.

A new introduction that can be grown for use as a patio plant or as a cut flower. Early blooming and growing to just 100cm (3ft) with golden-orange petals and dark brown centres 'Sonja' produces a spray of flowering side branches that surround the main stem. Durable in the garden and long lived in the vase.

Sunflower 'Soraya' is the first Sunflower ever to win an AAS award. It produces lovely rich tangerine-orange flowers with dark brown centres The vigorous, self-supporting plants stand 150 to 180cm (5 to 6ft) tall. Prized for cut flower arrangements, they produce 20 to 25 flowers from each plant.

With most sunflowers, the beauty is in the flower petals, but the multi-layered, green outer calyxes of Helianthus 'Sunfill Green' create the show. This fast growing annual source of cut fillers for bouquets produce geometric flower heads for use as bouquet greenery. Sow successionally, mid spring right through to mid summer.

Helianthus 'Sunfill Purple' is a novel purple sunflower with sumptuous dark centers and petals tipped with edged hints of purple. These fast-growing sunflowers produce geometric flower heads for use as bouquet greenery. Just 50 days to maturity, sow successionally, mid spring right through to mid summer.

Helianthus debilis 'Italian Green Heart' produces creamy white flowers with contrasting green centres. Growing 100 to 120cm tall, the flowers are perfect for fresh, cut flower arrangements - especially if gathered while they are still in bud.

Helianthus ‘Vanilla Ice’ is one of the prettiest sunflowers varieties available. With clusters of delicate pale creamy-yellow flowers with dark chocolate centres this compact variety grows to just 120 to 150cm (4 to 5ft) tall is suitable for the border or can be left add a naturalised charm to a wildlife friendly garden.

Perennial sunflowers typically don’t grow quite as tall and large as their annual friends. However Helianthus maximiliani is a wonderful exception. It grows slowly through the summer months as a group of short stems, until late summer when the stems bolt and the flowers head for the sky.

Most gardeners are familiar with the annual sunflower, however, it is the perennial varieties that coexist most happily with other garden plants. Helianthus mollis is a lovely perennial with butter-yellow flowers. It grows 120cm tall and requires little more attention than an annual cutting to the ground.

From the Tian Shan Mountains of northern China comes this tough little subshrub that is among the finest expressions of silver foliage to be found. Helichrysum thianshanicum is a superb silver leaved evergreen, subshrub that forms a tight mound of eye-catching silver foliage.

Heliopsis is a great plant for the busy home gardener. ‘New Hybrids' is a selection of the newest forms, they will bloom the first year from seed with a profusion of blooms in shades in lemon, golden yellow and orange-yellow. The plants will produce arm loads of flowers all summer long and never once ask for decent soil or proper care.

Herniaria glabra is a relatively unknown perennial that deserves to be used more often in our gardens. The nursery industry calls it ‘Green Carpet’ and well they should. This lovely bright green creeper spreads effortlessly in all directions. An excellent choice for between flagstones or as a lawn substitute.

Gorgeously scented pure white flowers are held above rosettes of dark green leaves. Like all sweet rockets it is highly attractive to bees and other beneficial insects, the fragrant flowers perfume the air in late spring and early summer evenings. The night-scented stock is a close relative.

Dames Rocket produce flowers varying in colour from deep rich purple, through all the paler lilac shades to white. Highly attractive to bees and other beneficial insects, the fragrant flowers perfume the air in late spring and early summer evenings.

In spring, Dame’s Rocket lights up the woodland edges with her blossoms, providing nectar for hummingbirds, moths and butterflies, and fragrance for the soul. Very easy to grow, sow seeds directly where they are to flower in early summer.

Hosta are grown predominantly for their outstanding foliage, from leaves as small as a teaspoon up to those larger than a dinner plate, colours range from deep blues to silvers, darkest shiny greens to bright yellows, from a single solid hue to the myriad of variegations the choice is almost overwhelming.