Absolutely! Combining flowers and vegetables in urban planter boxes is a fantastic way to maximize beauty, productivity, and ecological benefits in a small space. This practice, often called edible landscaping or companion planting, can lead to a healthier and more vibrant garden. Here are some practical tips to ensure your mixed planter thrives.
First, consider compatibility. Choose plants with similar needs for sunlight, water, and soil depth. For example, pair sun-loving tomatoes, basil, and marigolds together. The marigolds help deter pests, while basil may improve tomato flavor. For shadier spots, try leafy greens like lettuce or spinach with shade-tolerant flowers like impatiens or begonias.
Think vertically and structurally. Use the "thriller, filler, spiller" design principle. A tall "thriller" like a pepper plant or snapdragon creates height. Mid-sized "fillers" like kale, Swiss chard, or petunias add bulk. Finally, let "spillers" like nasturtiums (which are edible!), trailing herbs, or sweet potato vine cascade over the edges.
Prioritize soil and feeding. Use a high-quality potting mix, not garden soil. Vegetables are heavy feeders, so incorporate a slow-release organic fertilizer at planting and use liquid feeds periodically during the growing season to keep both flowers and veggies nourished.
Invite pollinators. Flowers like zinnias, cosmos, and borage attract bees and butterflies, which will significantly increase the pollination and yield of your vegetable plants like beans, cucumbers, and squash.
Practice succession planting. As you harvest quick-growing vegetables like radishes or lettuce, have young flower seedlings ready to plug into the vacant space, ensuring your planter looks full and beautiful all season long.
With thoughtful planning, your urban planter can become a stunning and delicious showcase of nature's harmony.