Lemon balm

Lemon balm (Melissa officinalis) is a perennial herb in the mint family Lamiaceae, native to southern Europe and the Mediterranean region. It is a bushy plant growing up to 90cm (3ft) tall and can spread like mint so may have to be kept in check. It is grown for its oval leaves which emit a strong lemon aroma when crushed.

Location
Lemon balm tolerates light shade and thrives in most average soils.

Sowing
Sow seeds 1cm (½in) deep in late April or early may.

Thinning
Thin seedlings to 15cm (6in) apart. Alternatively you can by a pot from a garden centre. It can be grown in containers to stop the roots from invading other areas of your garden.

Aftercare
Keep the plants well watered during their first summer.

Harvesting
Pick leaves sparingly until the plant is well established.

Continued care
In subsequent years, cut the stems back to 15cm (6in) above the ground each June to encourage the growth of new shoots. Each October cut them back to just above ground level. Store the cuttings, tied, by hanging in a warm, airy location.

Preserving
If you are picking leaves for drying, do so before the plant starts to flower in June and July.