Once the seeds have been sown, they need to be kept in a moist (but not wet), warm environment. A heated or mist propagator are ideal for this purpose, although seeds can also be successfully grown on a warm windowsill. Avoid saturating the compost, as this will reduce the amount of oxygen available to the plants roots and may encourage diseases or rot.

When the shoots start to appear, remove the propagator lid. Although you will need to keep the seedlings in bright light, they will need to be protected from draughts and shaded from harsh sunlight. Keep the compost moist to ensure that the roots do not dry out.