Long Bloom

Pennisetum alopecuroides var. viridescens has broader leaves and darker flower heads than the regular species and, growing to around 60cm tall, it is also slightly smaller. It has graceful smoky purple-black plumes that contrast nicely with the slender arching, glossy, deep green foliage.

Awarded a Fleuroselect Medal for striking colour, plant habit, and flowering performance, Penstemon barbatus 'Twizzle Blue' is a first year flowering perennial that will add height and high-impact colour to the border, giving superb flowering performance from mid to late summer.

Penstemon barbatus 'Twizzle Coral' adds a graceful twist to the garden. A first year flowering perennial, that is hardy and vigorous, it boasts twice the length of flowering stems, giving longer, more elegant wands for the vase while preserving the natural elegance of Penstemon barbatus.

A winner of both an AAS and Fleuroselect Awards, Penstemon ‘Twizzle Purple' is a first year flowering perennial that boasts twice the length of flowering stem. Strong, trouble-free plants produce trumpet shaped magenta-violet blooms that flutter all along tall, slender stems.

Considered by many gardeners as the most complete border flower, when Rudbeckia ‘Cherry Brandy’ was first introduced, it took the plant world by storm. This stunning cultivar is the world’s first red Rudbeckia, it produces a mass of spectacular cherry-coloured blooms all summer long.

Rudbeckia hirta 'Denver Daisy' has large, golden daisies with chocolate brown centres and marks at the base of each petal. Growing to around 75cm (30in) tall, this lovely variety performs well, is exceptionally heat tolerant and blooms for a long time in summer.

Rudbeckia hirta ‘Maya’ is a fabulous award winning variety, bearing beautifully doubled golden daisies with petals so dense they almost look like pincushions. Golden yellow, with a kiss in the centre — almost like a Zinnia in appearance. An outstanding cut flower and wonderful in mixed containers.

Semi-double and double velvety blooms in subtle shades of pale cappuccino, deep caramel, copper and dusty raspberry and everything in between. Rudbeckia 'Sahara' is one of the most spectacular blooms in the late summer border, coming to its peak just as others are starting to fade.

Salvia farinacea ‘Fairy Queen’ is an attractive new variety that bears multiple spikes of bicolour blue and white flowers on dark distinctive flower stems from June to October. With a bushy, compact habit and thick stems. A small white spot on each sapphire blue flower creates the illusion of fairy dust.

Salvia Victoria White is a companion to the more well known Victoria Blue. Flowering in less than four months from seed, it produces its white flowers from summer to autumn. Like all Salvia, it brings butterflies into the garden by the dozen, and makes a wonderful cut or dried flower.

Salvia patens is undoubtedly one of the very best blue flowering plants and one of the truest blues found in nature. 'Patio Deep Blue' is a compact variety that is perfect for containers or for the front of the border, there is little else that can compete with the richness of its colour.

Salvia sclarea var. turkestanica 'Vatican White' is a choice white cultivar that is not that easy to find. A nobly architectural Sage, each of its branched stems is topped with a profusion of blossoms with brilliant white bracts. The flowers are attractive and are boosted in impact by the large petioles that surround them.

This hardy biennial Sage has been grown in almost every botanical sanctuary in human history and has many plus points: it grows well in poor soil resists slugs and other beasties, and doesn’t slump or need staking. It copes well in sun or light shade and the blooms are a magnet for bees and butterflies.

Salvia verticillata 'Purple Fairy Tale' is a spectacular first year flowering perennial. The irresistible deep purple petals gather like raindrops in tiered pools to form whorled flowers. Easy to grow, it will begin to bloom just a couple of months after sowing. The plant flowers abundantly and continues right through to September

Salvia x superba 'Blue Queen' is one of the finest Salvias we know. This plant is a spectacular source of dark, intense colour and narrow, vertical form. Masses of pencil-thin, vibrantly colourful bloom spires, so densely set that they present a solid wall of colour in the border.

The royal sister of ‘Blue Queen’, ‘Rose Queen’ is a wonderful, long-blooming cultivar with slender spires and beautiful mulberry-rose flowers, which open from dark pink buds in early and mid-summer. This tall, easy-to-grow variety with lance-shaped green leaves possess a pleasant aromatic scent.

Sanguisorba officinalis is a native of Europe and an old-world herb that is currently enjoying a resurgence in popularity thanks to the revival of interest in perennial gardens and naturalised form of planting. Perfect for natural style planting schemes, it looks right at home in a swaying sea of grasses.

This Japanese species of Burnet has infiltrated our psyche and somehow manipulated us so that we can find no fault with this most refined of perennials. Flowering in the first half of summer, the highly tactile flowers float like dainty ghosts at the tips of their slender stems.