What vegetable grow above ground?
Common vegetables which grow above ground include:
Broccoli, cauliflower, brussels sprouts, asparagus, spinach,
lettuce, cabbage, various greens, celery, rhubarb.
Squashes (including pumpkins), tomatoes, cucumbers, peppers,
eggplant, okra, green beans and peas are technically fruits, but
they are used as vegetables. Peanuts are a special case: they are
legumes similar to beans and peas, the fruit pods form above ground
but they force their way into the ground to mature.
Vegetables that grow underground include:
Potatoes, carrots, parsnips, beets, radishes, turnips, onions,
garlic.
Onions do not grow underground an onion bulb is a swollen
stem.