In mild parts of the country you can sow some cultivars in sheltered sites in autumn, for a crop that should be ready to pick in about 30 weeks. During very cold weather it pays to cover the plants with cloches or other forms of protection.
The main sowing period is March and April, although they can be sown in February, under cloches or in a cold greenhouse, for an earlier crop. Spring sown crops will be ready to pick in about 15 weeks.
Sow seeds 5cm (2in) deep and 20cm (8in) apart. Dwarf varieties can be sown 15cm (6in) apart. They are best sown in double rows, with the rows 20cm (8in) apart. If a second double row is needed this should be positioned 60cm (2ft) away from the first.
Sow a few extra seeds at the end of the rows to fill in any gaps produced by seeds that don’t germinate.
Taller varieties will need supporting, so place a stout stake at each corner of the double row, and every 1.5m (5ft) round the rows, and run string around the stakes at 30cm (1ft) intervals from the ground.
Water plants when they begin to flower and again two weeks later – watering at other times is only needed during prolonged droughts.
Black bean aphid: Sap-sucking aphids will disfigure plants and cause stunting to leaves and stems.
Remedy: Pinch out the top 7.5cm (3in) of the stems when the first growth starts to form – this will also help produce an earlier crop.
More info on Black bean aphid
Chocolate spot: Common on overwintering plants or in damp, humid weather, this fungal disease causes brown spots on leaves and brown streaks on stems and pods.
Remedy: Ensure there is good air flow around plants by spacing them correctly and keeping the ground weed free.
More info on Chocolate spot
Pea and bean weevil: This tiny insect bites tiny U-shaped holes from around the outside of the leaf, resulting in a distinctive scalloped appearance.
Remedy: Although unsightly, damage is unlikely to have an impact on the harvest. Covering with fleece will boost growth and exclude the weevils.
More info on Pea and bean weevil
You can pick pods when they are 7.5cm (3in) long and cook them whole. When picking pods to shell, wait until the beans are visible through the pod, but don't leave them too long - the scar on the bean should still be white or green - not black, as the beans will become tough at this stage.
A lovely light lunch devised by Nigel Slater using young broad beans - Broad beans in their pods with dill and yogurt.
‘Witkiem Manita’ AGM:Sow in spring or autumn. Fast-growing with long pods.
‘Stereo’:Tender skinned variety that can be picked early and cooked like mangetout.
‘Aquadulce Claudia’ AGM:Long pods. Can be sown in spring or autumn.