When to plant Nasturtiums in Liverpool

Sow seeds into individual modules around 19th March - 2nd April. Cover with 1 cm of compost and keep the compost just moist while seedlings emerge.

When seedlings have a couple of true leaves, from 2nd April to 30th April, move them into individual pots if their modules are crowded. Handle them by the leaves, not the stems, and keep them in bright light so they do not become leggy.

From 16th April to 7th May, move plants outside for longer each day before planting them out. Protect them from cold nights and strong wind, and keep them in a sheltered spot at first.

Once the soil has warmed and frost risk has passed, plant out your hardened-off seedlings around 30th April - 14th May. Space them 30 cm apart, water in thoroughly straight after planting, and give them a sunny spot with free-draining soil.

From 30th May to 12th November, remove fading flowers regularly so the plant keeps producing new blooms instead of setting seed. Water only in dry spells, because rich soil and heavy feeding usually mean more leaves and fewer flowers.

Pick flowers and young leaves from 30th May until 12th November. Harvest in the morning for the best flavour, and take only a few leaves from each plant so it keeps flowering well.