Don't let lack of a garden space be a deterrent to enjoying garden produce. Be an urban farmer and plant in containers/ planter boxes. Find out things you can grow in it.
Who would not want a small kitchen garden of their own? Apart from the assurance that pickings will be fresh, devoid of any pesticides, a lot cheaper than market-price, just to see them grow is a source of achievement and joy. Let limitations of space not rob you of that sentiment. You do need to choose to appreciate containers, know basic maintenance tips and a source to procure starter plants/seeds and preferably transition progressively. Here's how you grow garden-produce without having one.
Herbs
For container-potting beginners, starting with herbs will provide the necessary fillip to roll with positively. Do remember not to pair those that need water aplenty (like coriander, parsley, basil, mint, chives, chervil) with those that don't (like bay, sage, thyme rosemary and oregano) together. Plant catnips, in fast-draining potting soil, to prevent root-rot. Do rhubarbs later.
Leafy Greens
Having shallow roots, a wide and about 6-8 inch deep container with decent drainage will do fine. Add some fertilizer for robust growth.
Tryouts: spinach, lettuces (all kinds), kale, collard greens, mustard greens, arugula, Swiss chard, Mesclun greens and Kohlrabi.
Edible Plants like Pole Beans, asparagus, etc. and mushrooms, may be difficult but not altogether impossible.
Root Vegetables
Not very challenging either but do fortify the potting soil with a good dose of organic fertilizer.
Tryouts:
radishes, carrots, onions, beets, potatoes, sweet potatoes, Jerusalem Artichoke, Turnips, Rutabagas, Celeriac, and Parsnips.
Sprouts
In general, sprouts grow well in a warm and moist condition. Some like Brussel sprouts, require 12 inches wide & deep planter box. You can add a little organic fertilizer to the soil. For vining sprouts like Adzuki, insert a foot-long stick for support.
Tryouts: alfalfa, baby mung bean, Chinese mung, lentil sprouts, snow pea shoots, Adzuki bean, blue pea sprouts.sugar snap peas
Botanical Fruits
Graduate to greater gloried with what most think as vegetables. Containers/ hanging baskets are bigger ( 20" wide, 24" deep) to accommodate lengthier root-system. Fertilizers will be helpful.
Tryouts: tomatoes, summer squash, squashes, like acorn and pumpkin, hot peppers, sweet peppers & cucumbers.
Citrus Fruits
They are easy to grow as well as to gain experience. Situate them in ample sunlight with fertilizer-added, free-draining potting mix and water steadily but not excessively.
Tryouts: Limes, Meyer lemons, Dwarf oranges, Tangerines & Grapefruit.
Plant Fruits
Tryouts: melons like small cantaloupe, Jenny Lind melon & golden midget Watermelon.
Tree Fruits
Though not so difficult, you may have to acquire fruit-specific knowledge.
Tryouts: apples, avocados, blueberries blackberries, cherries, pomegranates, pears and figs.
Tropical Fruits
You can not only grow them scaled-down but also in non-tropical climes.
Tryouts: aloe vera, guava, papaya, banana, pineapple, strawberries
