Pea

Lore & Background

Peas are annual plants with a life cycle of one year. They are a cool-season crop grown in many parts of the world; planting can take place from winter to early summer depending on location. The immature peas (and in snow peas and snap peas the tender pod as well) are used as a vegetable, fresh, frozen or canned; varieties of the species typically called field peas are grown to produce dry peas like the split pea shelled from a matured pod. These are the basis of pease porridge and pea soup, staples of medieval cuisine; in Europe, consuming fresh immature green peas was an innovation of early modern cuisine. Peas have both low-growing and vining cultivars. The vining cultivars grow thin tendrils from leaves that coil around any available support and can climb to be 1 to 2 metres high. A traditional approach to supporting climbing peas is to thrust branches pruned from trees or other woody plants upright into the soil, providing a lattice for the peas to climb. Branches used in this fashion are called pea sticks or sometimes pea brush. Pea plants can self-pollinate.

Reader's Guide

Peas are significant as a widely cultivated cool-season crop, providing both fresh and dried food products. Their historical importance is evident in medieval staples like pease porridge and pea soup, and their cultivation dates back thousands of years in the Near East and Europe. The species has a disputed taxonomy, with some sources reclassifying it as Lathyrus oleraceus, though the change is not universally accepted. Peas are also notable for their role in early modern cuisine, where fresh green peas became a novelty. Their ability to self-pollinate and adapt to cooler climates makes them a reliable crop in many regions. The term 'pea' itself is a back-formation from the older plural 'pease', reflecting linguistic evolution.

Did You Know?

• The name 'Pea' is also used for other edible seeds from the Fabaceae, such as pigeon pea, cowpea, and Sturt's desert pea.
• Botanically, pea pods are fruit, since they contain seeds and develop from the ovary of a pea flower.
• The pea karyotype consists of seven chromosomes, five acrocentric and two submetacentric.
• The term 'pea' originates from the Latin word pisum, a latinisation of the Greek πίσον (pison).