Supports: Sweet peas are usually allowed to scramble up pea sticks, canes wigwams or trellis. Alternatively use post and netting supports. Use dwarf bush type sweet peas for pots, hanging baskets or as ground cover.
Pinching out: Remove the growing tips of autumn-sown seedlings when about 10cm (4in) high to encourage branching. It is not usually necessary to pinch out the growing tips of spring-sown seedlings although you can do if they get too long and leggy.
For a long and regular supply of blooms: cut flowers frequently, before they produce seed pods.
This method is used by professional growers to produce top quality blooms. Cordons are trained as single-stemmed plants to individual canes, with sideshoots and tendrils removed so that all the plant's energies are diverted into flower production. See the National Sweet Pea Society website for more information on this method.