Step 1: Pick Out Your Pot
Choose a container that is at least 24 inches in diameter so there’s room for the plants to develop strong roots and grow as large as possible (bigger plants mean a more abundant harvest). Another benefit of a big pot: The large volume of soil will stay damp longer, requiring less frequent watering. Terra-cotta containers are always excellent options because their porosity allows air and water to move through the walls. Or consider repurposing a plastic trash can or bin and poking drainage holes in the bottom. If you live in a hot climate, avoid metal planters—the sun may heat up the soil temperature.
Step 2: Plan Your Arrangement
A 24-inch container can fit five to seven seedlings of varying sizes. Think of your planting as you would flowers in a vase. Choose an anchor—a large plant like a tomato, a pepper, a blueberry, or an eggplant. Add a plant with height—say, a tall, graceful fennel, an okra, or a dill. Then fill in around the edges with lettuce, spinach, and smaller herbs like parsley, basil, or rosemary. Try to include a plant that will dangle over the edge like nasturtium, strawberries, or even a small squash.
Step 3: Buy the Best Varieties
Visit your local nursery or farmers’ market to pick up the seedlings. Select varieties that are bred to be compact: Look for words like “dwarf,” “tiny,” “bush,” and “patio” in the plant names and descriptions. Pay attention to leaf colors and textures; to keep the arrangement looking attractive all season, you might want to plant golden oregano, purple kale, African basil, pink chard, and red or chartreuse lettuces. Also, seek out edible flowers like pansies, violets, chives, thyme, and lavender. Check the care tags to make sure the seedlings are compatible and can grow in the same pot.
Step 4: Prepare Your Container
Plant after the last frost (usually in April or May, depending on where you live). You’ll require just a trowel and gloves; there’s no need for any special tools. In the bottom of the container, place a layer of gravel or shards of broken terra-cotta pots; this will aid drainage. Top with a bag or two of regular potting soil, a mixture of materials like peat moss and vermiculite. Pat the soil down lightly with your fingers to get rid of air pockets. Soak the soil with water (from a hose or faucet) before planting so that it settles.