70cm. Upright habit, with long spikes of mauve-pink flowers in summer Attracts bees and butterflies. Well-drained but slightly moisture-retentive soil in sun. Tolerant of drought and rain! Hardy in milder areas..

Up to 120cm. Lemon-scented foliage, and dozens of whorls of red-purple flowers in summer, attractive to bees and butterflies. Good cut flowers. Well-drained soil in sun. Drought tolerant. Probably not hardy. Can be used to make a herbal tea.

60-70cm. Bushy light grey-green foliage, with flowers light orange-pink with darker lower lip, from mid to late summer. Particularly attractive to butterflies. Dead-head to prolong flowering,Well-drained soil in sun. Drought otlerant.

Up to 180cm. Dark bronze foliage, with red flowers.

100cm.  Rose-pink flowers with green foliage.

Up to 180cm. Bronze leaves. Tangerine flowers, with darker, frilled edges 

75 x 100cm. Arching light brown leaves, and brown flowers on arching stems in summer. Good in a container. Moist soil in sun or part shade.

30-40cm. Spherical 'flowerheads' in summer, preferring drier conditions than C. longus. Good in a container. Self seeds.

Bushy habit, with light pink flowers over a long period in summer. Moderately hardy.

Upright habit, with strawberry red flowers over a long period in summer. Moderately hardy.

Deep pink-red buds open to white flowers with pink centres and spotting. Very pretty. Long flowering, good container plant, or well-drained soil in sun.

15cm. Rich pink flowers for months in summer.

20 x 30cm. Forms a mat covered in spikes of lilac flowers in summer.

Upright habit with a long display of lilac flowers, from July onwards. Moderately hardy. Good in containers, or well-drained soil in sun.

30cm. Soft pink flowers all summer. One of the hardiest diascias.

60 x 60cm. Creamy lemon trumpet flowers with dark maroon blotch at the base, from mid-summer to autumn. Fertile, humus-rich soil in sun. Sometimes overwinters if kept frost free, but always best to collect some seed.

30cm. Yellow-margined leaves. Deep lavender flowers to 75cm.

10cm. Foliage chartreuse to yellow, gradually greening. Purple flowers to 35cm. Needs full shade

10cm. The smallest hosta. Dark green leaves, lavender flowers to 20cm.

20cm. Large white flowers.

15cm. Brilliant mid-blue flowers, more rounded than the others listed here. Also slightly less hardy.

15-20cm. Violet-blue flowers, late winter to spring.Hardy to -10C, but prolonged frost may damage.

Light blue flowers. Hardy to -10C, but prolonged frost may damage.

20-30cm. Bulb. Summer-dormant, producing spotted leaves in autumn, and bearing spikes of narrow, tubular, pendent yellow flowers during winter. Keep frost free, but cool, in a cool greenhouse or conservatory.

60-90cm. Good silvery foliage, with heads of lilac flowers from mid-summer. Needs a warm sunny spot.

75cm. Mid-green foliage, turning grey later in season. Profuse spikes of blue-purple flowers late July-August. Strongly fragrant. Rounded habit; good as ornamental or as hedging plant. Prune autumn.  Sorry, none available this year.

70-100cm. Deep pink, upward-facing flowers, early to mid-summer. Good in a container.

60-200cm. Sturdy stems bear numerous fragrant trumpet flowers, white with purplish-red reverse, in July. Grows in most well-drained soils, except very alkaline. Full sun.

As above, but with pure white flowers.

Similar to above, but bearing deep rose flowers.

1-2m Tuberous perennial climber or trailer, needing protection from frost in winter, (can be treated as an annual). Large rose-pink, trumpet shaped flowers, summer to autumn. Moist but well-drained soil in full sun. Good in a container.

longifolia *** 80 cm. Long grey-green leaves with a musty-mint scent. Long purple flowers resembling Buddleia. Good for flower arranging.

45-60 cm. Moroccan mint. White flowers in summer. A very well-flavoured culinary mint.

45-60cm. Pretty cream and green leaves. Rarely flowers. Culinary herb.

45 cm. Very dark leaves, with pink-purple flowers. Good culinary herb

45 x 100+cm. Basil Mint. Leaves green with reddish tinge. A sweet and spicy mint scent, good with tomato dishes.

45cm. Dense spikes of purple-blue flowers from mid-summer to autumn. Cut back after first flush of flowers to encourage further flowering and a compact habit. Sun or part shade. Good in a container too.

90cm. Rich blue flowers from mid to late summer. Sun or part shade. Prefers a drier spot.

45cm. Pale pink flowers in autumn.

45 x 10cm. Heads of bright pink flowers produced in autumn. Leaves appear in spring, and die off before flowering. Ideally, grow at the base of a sunny wall. Mulch in cold areas in winter.

20-30cm. Heads of pink, crinkly-petalled flowers in late autumn. Winter foliage. Summer dormant.

30-40cm. White flowers, Oct-Nov. Winter foliage. Summer dormant.

15-20cm. Apple-green bracts with small pink-purple flowers, mid-late summer. Needs very well-drained soil. Suitable for a rock garden or pot culture.

30cm. Stellar-type, with salmon-pink flowers in summer.

30-40cm. Small, creamy-white and green variegated foliage, pine-scented. White flowers. May be grown outside in summer. Good in a container.

45cm. Variegated green and white foliage, mint-scented. Small pink flowers throughout summer. May be grown outside in summer. Good container plant.

Profuse lilac flowers over deeply cut, scented foliage.

60cm. Deeply divided, lemon-rose scented leaves, with pink flowers, veined darker, in early summer and again later. Use leaves in pot pourri. May be grown outside in summer. Good container plant.

45cm. Good foliage, citrus-scented. Pink flowers, with deep purple-pink blotches on upper petals. May be grown outside in summer. Good in a container.

45-60cm. Strongly lemon-scented leaves. Mauve flowers with deeper veining. Upright growth. Can be grown outside in summer. Good in a container.

Angel pelargonium.  White flowers with purple-pink markings produced all summer. 

30cm. Rounded, rose-scented leaves, with pink flowers. May be grown outside in summer. Good in a container.

45cm. Delicate pink flowers, with grey-green, lemon-rose scented leaves. May be grown outside in summer. Good container plant.

60cm. Pale flowers with deep pink markings. Leaves are rose-lemon scented and deeply divided, said to be the best to use in cooking.

30-40cm. Attractive scented leaves,oak-shaped with a darker central zone, producing mauve flowers in summer. May be grown outside in summer. Good in a container.

60-100cm. Rose Geranium. Evergreen. Rose-peppermint scented leaves, deeply cut. Pink flowers. Can be grown outside in summer. Good in a container.

30cm. Clusters of small burgundy-red flowers throughout summer, over a mound of very attractive, aromatic, soft, grey-green foliage. Well-drained soil in sun. Good container plant. Has survived frosts here, dying back but re-sprouting from base as temperatures rise.

70cm. Dusky purple flowers.

100cm. Evergreen. Silvery hairy leaves. Pale blue flowers in summer. Minimum 10˚C. Good in a container.

75cm. Attractive foliage, with panicles of blue-mauve flowers in summer. Best in light shade. Good in a container. Keep frost free in winter.

15cm. Rich brown flowers with yellow centres. Humus-rich, fertile, gritty soil in sun or part shade.

15cm. Evergreen or semi-evergreen perennial. Lavender blue flowers with white-mealy eyes. Grow in part shade or full sun, with some shelter from midday sun. Moist but very well drained, gritty, slightly alkaline soil.

90 x 60cm. Not a true mint, so it does not spread. Mint-scented leaves, with heads of small pink flowers, attractive to butterflies, etc.. Best in part shade. Use for peppermint flavouring, or to make a refreshing footbath!

75cm. Deep violet flowers on a bushy shrub, from July to November. Hardy in warmer areas, in fertile, well-drained soil in sun.

70cm. Rich purplish-red flowers in summer. Well-drained soil in full sun in a sheltered spot.

80cm. Deep red flowers all summer. Very floriferous.

60-90cm. Deep blue-purple flowers in candelabra-shaped inflorescences. Main flowering in early to mid-summer, with some flowers produced into autumn. Fertile, well-drained soil, sun. Photo shows frosted foliage.

1.2-2m. A handsome plant, with evergreen attractive foliage, and spikes of rusty red flowers from late summer to autumn. Fertile, moist but well-drained soil in sun or part shade. Keep frost-free in winter. Good in a container.

60 x 60cm. Very deep indigo flowers against pale green calyces, in summer and autumn. Fertile, moist but well-drained soil in sun or part shade. Keep frost free in winter. Good in a container.

75cm. Variegated foliage, with cherry red flowers, very long-flowering, from mid-summer through to autumn. Makes a bushy shrub, hardy in warmer areas(-5˚C) in a sheltered sunny spot in fertile, well-drained soil. Good container plant.

70cm. Pure yellow flowers. Habit and conditions similar to above.

60-90cm. Pink flowers over a long period in summer and autumn, on a bushy shrub. Prefers fertile, well-drained soil in full sun, and needs winter protection unless in a sheltered spot in a warm county. (If the top growth is cut back in these conditions, it usually sprout from the base, rather like a hardy fuchsia.) Makes a good container plant.

90cm. Vivid red flowers. Habit and conditions similar to above.

90cm. Deep pinkish-red flowers. Habit and conditions similar to above.

60cm. Rich reddish-violet flowers. Habit and conditions similar to above.

60-90cm. Pink flowers. The x jamensis salvias are hybrids between S. microphylla and S. greggii. They make bushy shrubs, hardy in warmer areas (-8C) in a sunny, well-drained, sheltered spot. They flower from mid-summer through autumn, and make good cotainer plants.

60-90cm. Creamy flowers with pink blush. Similar habit and conditions to above.

60-90cm. Pale pink with dark calyces. Similar habit and conditions to above.

30 x 30cm. Bulb. Virtually evergreen, clump-forming bulb, which produces a conical flower-head in early summer, bearing masses of star-shaped, deep purple-blue flowers. Excellent in a container.

15cm. Deep pink flowers.

10cm. Greenish-red flowers on 20cm stems in summer. As above.

8cm. Reddish-pink flowers on 20cm. stems. For sharply-drained soil in sun. Good in a container.

20-30cm. Neat clump, with spikes of white flowers in mid to late summer, contrasting well with the dark foliage.

90 x 100cm. Evergreen grass. Dark green leaves streaked orange in summer, and turning completely orange-brown in autumn/winter. Lax open panicles of flowers from mid-summer. A superb plant! Will withstand short periods to �10C. Well-drained soil, preferably in full sun. Self-seeds a little.

40-60 x 30cm. Clump of fine green leaves, with a cloud of pale feathery flowers above, from mid-summer. Moves in the slightest breeze. Well-drained soil in full sun. Self-seeds a little.

30cm. Annual nasturtium with variegated cream/white and green leaves, and orange-red flowers throughout the summer. Leaves and flowers make a colourful and tasty addition to salads.

20-25cm. White, slightly fragrant flowers produced over a long period. May be hardy in warm well-drained position. I have always over-wintered it in a cool greenhouse, where it flowers for much of the year. Well-drained soil in full sun.

45-60 x 25cm. Large umbels of lilac flowers from mid-summer to autumn. May be hardy in a warm sunny position in well-drained soil.

10cm. Red flowers with purplish base, mid to late spring.

15-20cm. Crimson red and deep yellow flowers in mid-spring.

10cm. Multi-flowered. Starry yellow flowers, with dark stripe on outside of petals. Good in a rock garden.

10cm. Magenta-rose flowers with a greenish tint, yellow base. Good in a rock garden.

15-30cm. Flowers bright yellow, with reverse olive green with red flush. Mid-spring.

15cm. Narrow undulating leaves; scarlet flowers with dark basal blotch. Late spring.

10-15cm. Sulphur yellow flowers flushed with orange, late spring.

10-15cm. Bright vermilion-red flowers, late spring.

15cm. Multi-headed, star-shaped flowers, yellow and white, in spring. Prefers humus-rich soil. Good in a rock garden.

30cm. Multi-headed stems of star-shaped, white flowers with yellow centres. Spring. Good in a rock garden.

10-15cm. Golden yellow flowers, spring. Good in a rock garden.