Peas are cool weather crops so they should be grown in spring & fall. Sugar Snaps are vining and need a trellis or other support. Peas are normally sown outdoors once the soil temp is at least 40° (around March 27th). Plant along a trellis. Sow seeds in a band 3” wide (3 rows that are 1½ inches apart), with seeds planted 1½” apart and 1” deep.
This creates a denser planting than a single row planting and will produce more peas per square foot. Pea seeds germinate very slowly or may rot in overly cold & wet soils. Days to germination: 6-21. Seeds can be started indoors in biodegradable pots at 75° (around March 1st) & transplanted outdoors pot-and-all around March 27th. Plants will finish early (June) so you can sow pole beans below the peas 5/20 or fill space w/ basil or beets.
For fall harvest, sow peas July 15th – Aug. 1st. Peas grow best if seeds are inoculated with a pea inoculant at planting.