Allium tuberosum (Garlic Chives)

A vigorous, clump-forming, bulbous perennial with linear, keeled, edible, mid-green leaves and erect stems bearing umbels of fragrant, star-shaped, white flowers from summer into autumn. Height & Spread 50cm (1.5ft).

Aloysia triphylla (Lemon Verbena)

An upright, bushy, borderline hardy, deciduous shrub or sub-shrub with narrowly lance-shaped, lemon-scented, rough, bright green leaves and slender panicles of tiny, white or pale lilac flowers in late summer.

Artemisia dracunculus 'French' (French Tarragon)

A deciduous shrub with narrowly lance-shaped, aromatic leaves and small, pale-yellow flowerheads in late summer. Height 1m (3ft), Spread 50cm (1.5ft).

Chamaemelum nobile 'Treneague' (Chamomile)

A tufted, mat-forming, hairy, aromatic, non-flowering perennial with finely-divided, bright green leaves. Height 10cm (4in), Spread 50cm (1.5ft).

Diplotaxis muralis (Wild Rocket)

A erect, branching annual with lance-shaped, deeply lobed, edible, peppery, mid- to dark green leaves and, from late spring to early autumn, racemes of fragrant, bright yellow flowers with four rounded petals.

Foeniculum vulgare (Common Fennel)

An upright, clump-forming biennial or short-lived perennial with finely-divided, pinnate, mid- to blue-green leaves and branching stems bearing flat umbels of tiny, yellow flowers in summer followed by aromatic seeds.

Lavandula angustifolia 'Hidcote' (English Lavender)

A compact, bushy, evergreen shrub with linear, silver-grey leaves and upright stems bearing dense spikes of fragrant, purple flowers in summer. Height 60cm (2ft), Spread 75cm (2.5ft).

Lavandula angustifolia 'Munstead' (English Lavender)

A compact, bushy, evergreen shrub with upright stems bearing linear, grey-green leaves and dense spikes of small, strongly fragrant, purple-blue flowers in summer. Height 50cm (1.5ft), Spread 60cm (2ft).

Lavandula angustifolia 'Vera' (English Lavender)

A bushy, compact evergreen shrub with narrow, grey-green leaves. In summer it bears spikes of fragrant, deep blue-purple flowers. Height & Spread 60cm (2ft).

Lavandula angustifolia (English Lavender)

A bushy, compact evergreen shrub with narrow, grey-green leaves. In summer it bears spikes of fragrant, deep blue-purple flowers. Height & Spread 60cm (2ft).

Melissa officinalis 'All Gold' (Lemon Balm)

A bushy, clump-forming perennial with wrinkled, ovate, golden-yellow, lemon-scented leaves and irregular spikes of purple-flushed, white flowers in summer. Height 1m (3ft), Spread 50cm (1.5ft).

Melissa officinalis (Lemon Balm)

A bushy perennial with ovate, lemon-scented leaves, and creamy-white or pale purple flowers spikes in summer. Height 1m (3ft), Spread 50cm (1.5ft).

Mentha spicata (Garden Mint/Spearmint)

A spreading perennial herb, with aromatic bright green leaves and dense spikes of pink, lilac or white flowers in summer. Height 1m (3ft), Spread 1.5m (5ft).

Mentha x piperita (Peppermint)

A clump-forming perennial with lobed leaves, and tall stems carrying large, light mauve flowers in summer. Height 50cm (1.5ft), Spread 1m (3ft).

Nepeta mussinii (Catnip)

An erect perennial with aromatic foliage, producing spikes of blue, tubular flowers in summer. Height & Spread 50cm (1.5ft).

Origanum 'Hot and Spicy' (Oregano)

A mound-forming, rhizomatous, deciduous perennial with rounded to ovate, finely hairy, edible, spicy, grey-green leaves and whorls of tiny, two-lipped, white to purple-pink flowers in summer. Height & Spread 50cm (1.5ft).

Origanum vulgare 'Gold Tip' (Marjoram/Oregano)

A bushy, spreading, woody-based perennial with ovate to rounded, aromatic, yellow-tipped, dark green leaves and, from midsummer to early autumn, small terminal clusters of tubular, purple-pink flowers.

Origanum vulgare (Marjoram/Oregano)

A bushy, woody perennial with upright stems bearing fragrant, oval, dark green leaves and clusters of small pale pink to white flowers in midsummer to early autumn. Height & Spread 1m (3ft).

Petroselinum crispum 'French' (French Parsley)

An upright annual culinary herb, with flat, pinnate, strongly aromatic, edible dark green leaves and small, creamy-white flowers in summer. Height 60cm (2ft), Spread 50cm (1.5ft).

Petroselinum crispum (Parsley)

A bushy biennial, often grown as an annual with crisped, pinnate, aromatic, bright green leaves and flat-topped clusters of tiny, star-shaped, yellow-green flowers the second year. Height & Spread 50cm (1.5ft).

Rosmarinus officinalis 'Prostratus' (Prostrate Rosemary)

A dense, low-growing, evergreen shrub with linear, aromatic leaves and clusters of blue flowers in summer. Height 50cm (1.5ft), Spread 1.5m (5ft).

Rosmarinus officinalis (Rosemary)

A dense, bushy, upright to rounded, evergreen shrub with linear, leathery, aromatic, dark green leaves and spikes of whorled, blue or white flowers in mid-spring and early summer. Height 1.5m (5ft), Spread 60cm (2ft).