The pea is grown as a field crop for the production of grain for stock-feeding and for the manufacture of “split peas” for culinary use, for canning in the factories, for forage and green-manuring and to supply the seed trade. The field- or stock-pea differs from the garden pea usually in its violet or purple rather than white flowers, its smaller and more uniformly smooth seeds, but chiefly in the less tenderness and sweetness and lower quality of the green seeds.
For those not familiar with this tasty, nutritious weed, purslane can be a real challenge to manage in vegetable crops for a number of reasons. The seeds of this weed remain viable for many years in the garden, and generally do not germinate until hot weather — that is, after many of the market garden crops have already been planted. To make matters worse, this succulent plant often reroots after cultivation. Purslane also grows so close to the ground that it is impossible to control by mowing.