Fill deep pots, Rootrainers or the cardboard tubes from kitchen and toilet paper with seed compost. It’s important to use deep pots, as broad beans develop long roots.
Use your finger to push a single bean seed, on its edge, into the top of each module. Then cover the seed with a little extra compost – the seed should be about 5cm deep.
Water, soaking the compost thoroughly. Stand the Rootrainers or pots in a cool but frost-free, sheltered place, such as a cold frame, unheated greenhouse or cool windowsill.
Plant broad beans in well-drained soil that has had plenty of organic matter incorporated.
Once the roots have filled the pots, harden off the plants by standing them outside during the day but bringing them under cover at night. Soak the compost before planting out.