Make sure that you have well-drained, humus-rich soil.
Poke in any seeds that wash out. (A chopstick is an ideal tool for this.)
Be sure, too, that you don’t fertilize the soil too much. Peas are especially sensitive to too much nitrogen, but they may like a little bone meal, for the phosphorus content.
Though adding compost or manure to the soil won’t hurt, peas don’t need heavy doses of fertilizer. They like phosphorus and potassium.
Water sparsely unless the plants are wilting. Do not let plants dry out, or no pods will be produced.
For tall and vine varieties, establish poles or a trellis at time of planting.
Do not hoe around plants to avoid disturbing fragile roots.
It’s best to rotate pea crops every year or two to avoid a buildup of soil-borne diseases.