If you're wondering whether you can grow a small smoke bush (*Cotinus coggygria*) in an outdoor plant box, the answer is yes—with the right care. Smoke bushes are known for their striking purple or green foliage and wispy, smoke-like flowers, making them a stunning addition to any garden. While they typically thrive in open ground, smaller varieties can adapt well to container gardening if given proper attention.

Choosing the Right Variety

Opt for compact cultivars like *Cotinus coggygria 'Young Lady'* or *'Royal Purple' Dwarf* to ensure they fit comfortably in a plant box. These varieties grow slower and stay smaller, making them ideal for confined spaces.

Plant Box Requirements

Select a sturdy, well-draining plant box at least 18-24 inches deep and wide to accommodate the root system. Terracotta or wooden boxes work well, but ensure they have drainage holes to prevent waterlogging.

Soil and Sunlight

Use a high-quality potting mix with good drainage and slightly acidic to neutral pH. Smoke bushes love full sun (6+ hours daily), so place the plant box in a sunny spot for vibrant foliage and healthy growth.

Watering and Fertilizing

Keep the soil consistently moist but not soggy. Water deeply when the top inch feels dry. Feed with a balanced, slow-release fertilizer in spring to support growth.

Pruning and Winter Care

Prune lightly in late winter to maintain shape and encourage bushiness. In colder climates, protect the roots by mulching or moving the plant box to a sheltered area during frost.

With these tips, your small smoke bush can thrive in an outdoor plant box, adding a touch of elegance to patios, balconies, or small gardens. Happy gardening!