Sowing: Because peas thrive in cool weather and do not transplant well, they should be planted outside 4-6 weeks before the last frost or when the average soil temperature reaches at least 40 degrees F. If planting later, remember that most peas won’t tolerate weather above 75 degrees F. If planting peas in your soil for the first time, keep in mind that a powder inoculant of beneficial bacteria should coat the seeds. Plant the peas 2″ apart and 2″ deep in light soil and full sun; plant in double rows 6-8″ apart to allow for a trellis. For an early spring crop, plant in the same manner in the fall. Peas do not do well when planted near onions or garlic.
Growing: As the vines begin growing, a trellis will support their climbing habit; any kind of support 5-6′ tall should be sufficient. Before they bloom, pea plants need to be kept moist but not wet; after blooming, slightly increase the watering. Remove weeds carefully to avoid disturbing the plants; mulch may be helpful to conserve moisture and control weeds. Mammoth Melting Sugar is wilt resistant, and gives its best yields in cool weather.