Tender, evergreen climber. Bright yellow, tubular flowers to 4 inches (10cm) across, are borne from spring to summer followed by slender bean-like seed pods.

Rhizomatous perennial sometimes referred to as ‘Plume poppy’. Glaucous, oak-like leaves and large panicles of pinkish-tan coloured flowers.

Tender, woody-stemmed climber from South America. Racemes of very fragrant, tubular, white or cream flowers borne from early summer. Long, slender, bean-like seed pods.

Half hardy climber. Mid-green ivy-shaped leaves on thin stems and numerous purple trumpet-shaped flowers with white throats throughout summer.

Shade loving, perennial ‘Welsh poppy’. Single, cup-shaped, yellow or orange flowers in late spring. Self-seeds freely.

The ‘Paper-bark tree’. A tender, evergreen tree, though more usually making a large shrub in this country. Peeling, tan coloured bark and cream coloured bottlebrush-like flowers. Best grown in a warm position, it benefits from some protection in winter, but will tolerate winds.

Evergreen South African shrub. Exotic looking, deeply toothed, aromatic foliage on somewhat lax, woody stems. Long spikes of greenish flowers are produced from early summer.

Deciduous perennial grass. Lustrous, deep purple spikelets in summer.

Perennial grass. Pale green foliage with bold central golden stripe. Small, golden yellow spikelets are produced from late spring.

Evergreen shrub from Oregon and California. Slender, glossy, deep green leaves and trumpet-shaped, almost frilled flowers of rich orange-yellow on lax woody stems.

Creeping perennial. A variety of the scarlet flowered M. Cardinalis but with the inner throat heavily marked dark brownish-red.

Evergreen shrub. Creamish-yellow, trumpet-shaped flowers with a white throat marked deep yellow.

Deciduous grass. Slender mid-green leaves turning deep red in autumn. Pinkish-silver flowers.

Deciduous clump-forming grass. Slender, arching, blue-green leaves each with a distinctive white midrib. Silvery, pinkish-beige flowerheads produced in early autumn.

Perennial, clump-forming grass. Fine, arching, green foliage with white midribs. Pink flowerheads produced in early autumn, ageing to silver.

Neat, aromatic perennial, producing whorls of small pinkish-lilac flowers on slender stems.

A compact variety of this aromatic perennial. Large, bright pink flowers from midsummer. Very attractive to bees.

Perennial, producing a basal rosette of glossy, dark green, thistle-like leaves, and upright stems bearing whorled clusters of white flowers ageing to deep pink.

Aromatic, evergreen shrub. Creamish flowers with conspicuous tufts of white stamens from late summer.

Evergreen shrub commonly known as ‘Heavenly bamboo’. Panicles of star-shaped white flowers with prominent yellow anthers, followed by long-lasting, spherical, red fruit. Dark green foliage tinged red when young.

Golden yellow variety of the ‘Hoop-petticoat daffodil’. Funnel-shaped trumpets and very thin, almost non-existent perianth segments.

Dwarf variety producing golden-yellow, double flowers in early spring.

A short variety producing pale yellow, cup-shaped flowers surrounded by white perianth.

Bulbous perennial. Arching, pendent, cup-shaped, creamish-white flowers flushed pink.

Deciduous shrub from West China, producing arching, terminal racemes of rose-pink flowers in early summer.

Vigorous, aromatic, perennial. Broad, grey-green leaves and large heads of violet-blue flowers throughout summer.

Aromatic perennial producing masses of deep violet- to lilac-blue flowers in summer.

Autumn-flowering bulbous perennial. Stout stems bearing clusters of reflexed, reddish-orange flowers.

Evergreen tree or shrub. Single, salverform salmon pink flowers in summer. Requires full sun and some winter protection.

The tall, cottage garden ‘Evening primrose’. Scented medicinal herb with a profusion of pale yellow flowers opening in succession in the early evening.

Vigorous perennial sometimes referred to as O. Missouriensis. Very large, cup-shaped, golden yellow flowers throughout summer.

Carpet-forming perennial. Open, saucer-shaped pink flowers produced over a long period.

Orange buds open to warm, pale yellow flowers. Dark green, strap-shaped leaves with red veining.

Creamy-yellow flowers ageing to pale peach-orange. Slender foliage on reddish stems.

Very exotic looking. Soft yellowish-orange flowers, mature to deep orange, arranged around strong, woody stems.

Evergreen shrub. Sm othered in dense heads of white daisy-like flowers from late spring. Dark green leaves silver-grey on the undersides.

Evergreen perennial. Tufts of almost black, grass-like foliage. Purplish-white flowers.

Evergreen, glossy, dark green, grass-like foliage streaked grey-green. White flowers in summer.

Evergreen, slender, dark green, grass-like foliage and pendent, blue, bell-shaped flowers.

The native perennial ‘Wild marjoram’ with strongly aromatic, dark green leaves and domed heads of small pink flowers.

Deciduous ‘Tree peony’. Large, cup-shaped, single yellow flowers borne in early summer on stout, open branches. Deeply cut, dark green leaves.

Large, dusky plum-coloured flowers with pleated petals marked darkest burgundy at the base.

Semi-dwarf perennial variety. Black blotched petals in shades of white, pink, orange or red.

Clump-forming perennial. Large, salmon-pink flowers marked with black in the centre.

Clump-forming perennial. Large, white flowers with a black blotch at the base of each petal.

A Spanish native ideal for a dry garden. Blue-grey, coarse haired foliage and a multitude of orange-red flowers.

Vigorous, evergreen, climbing perennial producing creamish-white flowers with the coronas conspicuously ringed purplish-blue and white.

Evergreen climber. Pinkish-purple flowers from early summer. Requires some protection in winter.

Deciduous tree from China. Large, downy leaves and fragrant, lilac, foxglove-like flowers in late spring.

Fragrant, shrubby, evergreen perennial. Mauve flowers borne in clusters. Aromatic foliage heavy with the scent of ‘Turkish delight’.

Tender perennial. Very dark burgundy flowers with the petal edges marked dark red.

Deciduous grass. Slender, arching, mid-green leaves. Soft, feathery, creamish-beige spikelets.

Large, open-mouthed flowers of rich, carmine red, heavily marked with a brownish-red band on the lower lobes extending to stripes in the throat.

Long-flowering border perennial, bearing masses of large, trumpet-shaped, pastel-mauve flowers throughout summer.

Bushy, vigorous perennial, producing wine-red flowers from June to October.

Clusters of creamy-white flowers suffused rose-pink.

Tall variety with deep maroon-purple flowers with red streaked throat. Dark green leaves.

Strong, dark red stems and broad, dark green leaves topped with large, open trumpet-shaped, dark maroon flowers.

Originally collected on Cerro Potosi, Mexico in 1994. Lax, branching stems bearing masses of white, tubular flowers, heavily marked purple on top.

Slender, red flowers with white throats strongly marked with magenta stripes on the lower lobes.

Pure red flowers with a white throat streaked red, and large mid-green leaves.

A tall vigorous variety. Pink flowers with a white throat lightly pencilled in deeper pink. Early to flower.

Large purple flowers with contrasting white throats. Large, dark green foliage.

A burgundy-red leaved form of P. Digitalis with slender white flowers.

Masses of slender, long-tubed flowers. White blushed pink, stronger pink towards the front of the lobes. White throat pencilled pink.

Clusters of slender, tubular, white flowers. A good ground cover habit.

A lower-growing species from Alaska and the Yukon. Tubular, sticky, lavender-coloured flowers.

Long, slender-tubed, ivory-white flowers. Mid-green foliage and bushy habit.

Glowing, bright blue flowers suffused reddish-purple at the base. Slender dark green foliage.

Large, salmon-pink flowers with white throat pencilled deep red.

Soft salmon-pink flowers with white throats streaked crimson. A fine border perennial.

Slender stems bearing loose sprays of slender, pinkish- to purple flowers. Dark olive-green foliage.

A dwarf variety suitable for an alpine garden. Bronze tinted foliage and tight clusters of small pinkish-mauve flowers.

An erect form of this Mexican species with deep red, slender-tubed flowers and bright-green finely notched leaves.

Broad leaved variety with large, glowing deep coral-red flowers heavily striped in the throat.

Vigorous variety with large, open-mouthed, clear cerise-pink flowers with contrasting white throat.

One of the darkest purples, flowering over a long period. The flowers identical to P. ‘Russian River’ but with a slightly more open, spreading habit. Dark green foliage. 

Clusters of 1 inch (2.5cm) long, slender, intense blue flowers and glossy, dark green, oval leaves.

Clusters of large, deep burgundy flowers each with a white throat heavily streaked with deep burgundy.

Narrow-tubed, flame-orange flowers and needle-like foliage. A dwarf perennial for a sunny and well drained position.

Cerise pink flowers with a white throat. Large, glossy leaves and a bushy habit.

Deep purple flowers on dark purple stems.

A very free-flowering form with glowing, warm-red flowers.

Purple flowers with a white throat.

Bright red flowers with a white throat.

Large, deep pink flowers with a white throat very attractively marked with fine pencilling.

Violet-blue flowered species. Prefers dry conditions.

Large, reddish-purple flowers with a white throat conspicuously streaked with purple.

White flowers, tinged pink in bud on fresh-green foliage. Long-lasting and of neat habit.

Large, bluish-purple flowers with a white throat strongly marked with burgundy-red stripes. Very dark green foliage.

Heart-shaped, pointed leaves change from deep maroon with a silvery-white V-shaped mark in spring, to dark green with a maroon V-shape in summer. Attractive burgundy stems. Pinkish-white flowers in summer.

Upright perennial with dense, sage-like, grey-green leaves. Strong stems bear whorls of pale yellow, hooded flowers.

Herbaceous perennial. Open, loose clusters of pink flowers from early summer.

Tall herbaceous perennial. Large flowerheads opening pale blue and ageing to deep violet-blue edged red.

Upright, clump-forming perennial. Large heads of lilac-pink flowers from late summer.

Evergreen perennial. Broad, upright, bronze-green leaves striped deep pink at the margins.

Large, clump-forming, perennial ‘New Zealand flax’. Variable, leathery, dark green, sword-shaped leaves. Tall, rigid stems bearing panicles of dusky, brownish-red flowers.

Evergreen, upright shrub, bearing clusters of pendent, tubular, creamy-yellow flowers from midsummer.

Clusters of pendent, tubular, rich-purple flowers on a compact plant.

Evergreen, open shrub from South Africa. Orange-red, slender-tubed, flowers with yellow throats.

Evergreen upright shrub. Short panicles of cream, tubular, pendent flowers produced from July to late autumn. Compact habit.

Deciduous shrub. Dark bronze-red foliage and dense clusters of contrasting, pink tinged, white flowers.

Herbaceous perennial forming dense clumps of upright stems bearing spikes of pink or white trumpet-shaped flowers from July to September.

European perennial. Slender stems bearing spherical clusters of deep blue flowers with very prominent slender bracts. Dark green basal leaves.

Dense clusters of orange-red, daisy-like flowers borne in summer above a basal rosette of blue-green foliage. Tolerates dry positions in full sun.

Semi-evergreen, open shrub. Glossy, dark green leaves and bright yellow, pea-like flowers. Can be trained against a wall.

Evergreen small tree or shrub from New Zealand. Glossy, oval leaves and small, dark red flowers borne in the leaf axils. Wind resistant and tolerant of maritime conditions.

Tender, evergreen shrub from Australia, producing large, ovate, downy, silver-grey leaves and large racemes of bluish-white, tubular flowers throughout summer.

Trailing, spreading perennial. Coarse, dark veined, dark green leaves with striking, purple undersides. Small white flowers spotted purple. A very effective foliage plant for hanging baskets or containers. Requires some protection over winter.

Variegated bamboo with broad, yellow and green striped foliage.

Elegant clusters of deep blue, trumpet-shaped flowers with fresh-green fern-like foliage.

Lilac flushed, apricot-coloured flowers. Mid-green, fern-like foliage. Clump-forming perennial.

Slender flower trumpets of orange, blending to yellow. Silvery, grey-green, fern-like foliage.

Tender evergreen shrub. Large, purple-veined, deep rose-pink, pea-like flowers with prominent whitish fringes.

An evergreen native fern with glossy, leathery, mid-green, leaves. Tolerates alkaline soil.

Border perennial type. Coral-red and cream, saucer-shaped flowers on long, lax stems.

Long, lax stems, bearing loose clusters of small, white, saucer-shaped flowers. Border perennial.

Deep red, saucer-shaped flowers with darker red centres. Border perennial.

The ‘Giant cowslip’. Large, deep-yellow, vanilla scented flowers on tall stems.

Choice double primrose. Deep purple flowers with each petal finely marked with a white margin.

A variety of the native ‘Cowslip’ producing flowers in a range of colours from mid-spring.

Aromatic, bushy, evergreen shrub from Australia. Masses of purple, bell-shaped flowers borne from late spring. Small dark green leaves, grey-green on the underside.

Evergreen shrub or tree with glossy, red stemmed, dark green leaves. In early summer, racemes of small white flowers are followed by small, red, then black fruit.

Large evergreen bamboo. Olive-green canes maturing to pale beige. Broad dark green leaves to 14 inches (35cm) long.

Perennial ‘Pasque flower’. Feathery leaves and stems. Large, cup-shaped, purple, pink or white flowers with bright yellow centres in late spring. Attractive, feathery seed heads.

Deciduous perennial producing from late spring, large, deep ruby-red, cup-shaped flowers with bright yellow centres. Prominent, ornamental, feathery seed heads.