Creating a lush, green oasis in the city starts with choosing the right plants. For new planter boxes, fast-growing varieties provide immediate impact, privacy, and a sense of established beauty. Here are the best performers to quickly fill your urban containers.
For vertical interest and quick screens, consider climbing vines. Sweet Potato Vine (Ipomoea batatas) is a superstar, offering vibrant chartreuse or deep purple foliage that spills over edges. Black-Eyed Susan Vine (Thunbergia alata) adds cheerful yellow, orange, or white flowers all season. For fragrant blooms in weeks from seed, Moonflower Vine (Ipomoea alba) opens its large white flowers at dusk.
Don't overlook vigorous annuals and grasses. Coleus provides stunning, colorful leaves in shades of pink, red, and green, growing bushy rapidly. Ornamental Millet (Purple Majesty) adds dramatic, tall purple plumes. Asparagus Fern (though a tender perennial) delivers soft, feathery texture that fills space beautifully.
For edible options, Nasturtiums grow quickly from seed, with pretty, peppery leaves and flowers that trail over sides. Leafy Greens like Swiss chard and kale grow rapidly, offering both food and bold foliage.
Tips for Success: Use high-quality potting mix, ensure your boxes have drainage holes, and water regularly as containers dry out fast. A balanced, slow-release fertilizer at planting will support their rapid growth. With these fast-growing plants, your urban planter boxes will transform from empty to overflowing with life in just a few short weeks.