Container Vegetable Gardening: Grow More in Less Space with Less Work

Photo by the National Garden Bureau

Container gardening gives you control over growing conditions, reduces weeding, and lets you grow vegetables even without a yard. Follow these tips for a bountiful harvest.

Choosing Containers

Bigger Is Better

Large containers hold more soil, retain moisture longer, and accommodate more plants. Use barrels, buckets, baskets, boxes, or troughs—anything with drainage holes. A wooden half-barrel can yield an impressive amount of food.

Pot Material Matters

• Clay pots are attractive but dry out fast; plastic retains moisture better. Combine both by slipping a plastic pot inside a slightly larger clay pot.
• Black pots absorb heat in sun.
• Double-potting (small pot inside larger with sphagnum moss or newspaper between) keeps roots cool and moist on hot days.
• Hanging baskets utilize vertical space; herbs, cherry tomatoes, and strawberries thrive at eye level.
• Add 1 inch of coarse gravel at the bottom for drainage.

Soil, Water, and Fertilizer

Never use garden soil—it's too heavy and may harbor pests/diseases. Use a soilless mix or compost blend. Water daily or twice daily in heat; containers dry quickly. Feed with liquid fertilizer twice monthly, plus occasional fish emulsion or compost for trace elements.

Window Boxes

A large window box can supply a handy salad within arm's reach. Place containers where they get 6–8 hours of direct sun and are convenient to tend.

Plant Supports

Install trellises, stakes, netting, or cages at planting time to avoid root damage. A bamboo teepee supports pole beans or peas; cucumbers climb nylon mesh for straight fruit. Maximize space by combining root crops, low-growers, and tall climbers in one container—climbers go up, low plants spread below, shading out weeds. Pair quick-maturing crops (lettuce, radishes) with longer-season ones (tomatoes, broccoli). Group plants with similar sun/water needs: pole beans/radishes/lettuce; cucumber/bush beans/beets; tomatoes/basil/onions; peas/carrots.

Container-Friendly Vegetable Varieties

Choose varieties bred for containers. Here are recommendations:

• Beans, snap: 5-gal window box – 'Blue Lake', 'Romano', 'Tender Crop'
• Broccoli: 1 plant/5-gal pot, 3/15-gal tub – 'DeCicco', 'Green Comet'
• Carrots: 5-gal window box, 12"+ deep – 'Danvers Half Long', 'Short 'n Sweet', 'Tiny Sweet'
• Cucumbers: 1 plant/1-gal pot – 'Patio Pik', 'Pot Luck', 'Spacemaster'
• Eggplant: 5-gal pot – 'Black Beauty', 'Ichiban', 'Slim Jim'
• Lettuce: 5-gal window box – 'Ruby', 'Salad Bowl'
• Onions: 5-gal window box – 'White Sweet Spanish', 'Yellow Sweet Spanish'
• Peppers: 1/2-gal pot, 5/15-gal tub – 'Cayenne', 'Long Red', 'Sweet Banana', 'Wonder', 'Yolo'
• Radishes: 5-gal window box – 'Cherry Belle', 'Icicle'
• Tomatoes: Bushel basket – 'Early Girl', 'Patio', 'Small Fry', 'Sweet 100', 'Tiny Tim'

With the right container, soil mix, and varieties—plus 5+ hours of sun and consistent watering—you'll enjoy a low-maintenance, high-yield vegetable garden.