(Image from: https://hudsonvalleyseed.com/products/sugar-daddy-snap-pea?_pos=1&_sid=bb885ed2f&_ss=r)
Growing Instructions for Sugar Daddy Snap Pea :
Direct sow as soon as soil can be worked until last frost date. Trellising not required, though all peas prefer it. Harvest pods when plump but not bursting. Frequent and steady harvests help plants to continue to produce. Saving seeds is easy: just let some peas dry on the vine.
(from Hudson Valley Seed Company website)