If the weather and soil are suitable, fork over the area where sweet peas are to be planted. Break up any clods and pulverise the top few inches of soil. Treading helps to provide a firm, settled soil structure beneficial to rooting.
  If you plan to grow plants on the cordon system, erect the supporting framework of wooden posts and cross-pieces, with stout strands of wire connecting them. Through design details are usually determined by the materials available, the structure must be sufficiently firm and rigid to withstand strong winds.
 Make sure you have adequate canes for supporting the plants. Bamboo canes, 8 ft. long, are ideal.
  Towards the end of the month, soil and weather conditions permitting, sow seeds outdoors in their flowering positions.