Lemon Balms in Barnes

Sow seed thinly on the surface of moist seed compost around 2nd March - 15th April. Barely cover it, because light helps germination, and keep the compost just damp until seedlings appear.

When the seedlings are large enough to handle, thin them or prick them out into small pots. Keep them growing in bright light and water carefully so the roots do not dry out.

Move the young plants outside gradually over 1st April - 15th April if you started them under cover. This helps them adjust to wind and cooler air before planting out.

Plant into a sunny or lightly shaded spot once the soil is workable and the plants are sturdy. Water in thoroughly at 15th April, then keep them moist while they settle, or pot them on into a larger container with free-draining compost.

From 23rd April, water during dry spells and pinch out the tips regularly to keep plants bushy and delay flowering. If the weather turns very dry, give container plants extra attention so growth stays soft and leafy.

Start picking once plants are well established, from 9th June, by snipping the top growth just above a leaf pair. Harvest often through 9th June - 5th November, and cut back any flower stems to keep the flavour best.