Like most tender greens, arugula is perishable and needs to be used within a few days of purchase. Look for crisp leaves without mushiness.
Asparagus comes in green, white, purple and wild varities. Look for the thinnest stalks possible; these are the most tender. Steer clear of limp and wilted asparagus.
Beet roots, stems and leaves are all edible. Beets should feel heavy for their size, with no mushy areas. If greens are attached, they should not be wilted or have yellow spots.
Red and green cabbage should have a firm, tight head and feel heavy for their size, with no black or soft spots. Savoy and Napa cabbage are generally a bit "looser".
Also known as Swiss chard or rainbow chard, you can eat both the leaves and stems. You want crisp, perky and glossy leaves, with firm and healthy stems.
Cherries can be sweet (even the sour ones), delicious, and eaten raw or cooked. Look for cherries that are firm and have no bruises or browning.
Look for leaves that are dry and free of dark green goop. No yellowing or wilted leaves, which are signs of decay.
Collards are a versatile and delicious member of the brassica family, and can be used both cooked and raw. Look for firm leaves and stems with no yellowing, spots or wilted leaves.
Scapes are the curled shoots of hardneck garlic varieties. Scapes should be firm but somewhat flexible and free of blemishes or moldy spots.
This wild-foraged leafy green packs a nutritional punch with lots of protein, fiber, omega fatty acids and Vitamins A and C. Look for leaves that are perky.
Common leeks look like giant scallions and have a mild onion-y, sweet flavor. Look for leeks on the smaller side, 1-2" in stem diameter with very dark greens that have no yellowing or wilted spots.
There are many varieties of lettuce, from loose-leaf to those bought as a head. For all varieties, look for leaves that are intact and not wilting.
Morels are a wild, cone-shaped mushroom with honeycomb-like texture. When purchasing, avoid morels that are discolored, splotchy or slimy.
There are several varieties of mushrooms and they can be purchased fresh or dried. Look for fresh mushrooms without slimy, moldy or black spots.
When purchasing dried onions, avoid brown or mushy spots and choose onions that feel heavy for their size without any signs of sprouting.
Parsley is available in both curly and flat-leaf varieties. For both, look for firm, perky leaves, firm stems and no wilting or yellowing of any kind.
Parsnips are a root vegetable that look like a pale carrot, usually a shade of pale yellow or ivory. Look for parsnips that are firm but not tough.
Pea shoots are very young pea plants. They can be eaten like a green - braised, sauteed or tossed into salads - or made into pesto. Look for bright green pea shoots that are not wilted.
Peas are a type of legume and come in a variety of sizes and colors including green, yellow and purple. Look for pods that are plump and bright green.
Purslane has the most omega-3 fatty acids of any green vegetable. Its flavor is slightly tart and a bit lemony - perfect for summer salads.
Most radishes are sold with the tops attached: look for vibrant greens and firm roots. Don't forget you can saute the tops or use them in pesto!
Ramps are definitely delicious — a peppery and pungent cross between onion and garlic — and their ephemeral nature adds to their appeal. Make sure to select ramps without slimy or discolored patches.
Rhubarb is a tart, spring-time vegetable with rosy, celery-like stalks. Look for thinner stalks with good color for the best taste and texture — thicker stalks may be more fibrous.
Sorrel comes in both red and green varieties, but both resemble spinach. Sorrel has a sharp, tart, green apple taste that adds a tang to salads and cooked greens.
Fresh spinach leaves can be sold as loose leaves or still attached to the stem. Look for perky, evenly colored leaves with no mushy spots. Smaller leaves will be the most tender while larger leaves can be stringy in texture.
Although you can sprout many seeds, the two most common sprouted types are bean and alfalfa. Look for sprouts that are perky and smell fresh. Avoid any that smell off or that appear slimy or wilted.
Bigger isn't always better when it comes to strawberries: look for berries that are glossy, fragrant and deeply colored all the way up to the stem.
Fresh thyme imparts a bright, almost lemony flavor to soups, roasts and other dishes. When buying thyme, leaves should be fresh, green and firmly attached to the stems. Thyme with lots of wilted leaves is less fresh.
Watercress is a leafy green vegetable with a peppery flavor that pairs really well with duck and other game meats. Try to avoid any mushy leaves, as they can spoil the others in storage.
Winter squash is actually harvested in autumn before a hard frost and stored for later. Squash comes in many sizes and colors and may even have decorative warts. Avoid squash with visibly broken skin.