Japanese Boxwood
Japanese Boxwood (Buxus microphylla var. japonica)
Common Names: Japanese Boxwood, Japanese Littleleaf Boxwood, and Wax-leafed Boxwood.
Best Growing Environment: Japanese Boxwood is quite versatile and can adapt to a variety of soil types. However, it thrives best in well-draining soil with a slightly acidic to neutral pH. Before planting, it's advisable to work in some organic matter to enhance soil fertility and improve drainage.
Average Height: This shrub typically reaches heights of 6 to 8 feet, though some varieties may stay smaller, around 4 to 6 feet. Its spread is generally about 4 to 6 feet wide.
Growth Rate: Japanese Boxwood is known for its slow to moderate growth rate. While it won't grow rapidly, its steady growth results in a dense, compact foliage ideal for hedging or topiary shapes.
Sun Requirements: Ideally, Japanese Boxwood prefers partial shade but can tolerate full sun. In regions with particularly intense summer sun, it's best to provide some afternoon shade to prevent leaf scorch.
Cold Hardiness: This boxwood variant is hardy in USDA zones 6 through 9. While it can endure cold snaps, prolonged freezing temperatures can damage the plant, so it's essential to offer some protection in colder zones.
Water Requirements: While the Japanese Boxwood is relatively drought-tolerant once established, it benefits from regular watering during its initial growth period. It's crucial to avoid waterlogged conditions, as this can lead to root rot.
Fertilizing Guide: In general, Japanese Boxwoods aren't heavy feeders. Applying a balanced, slow-release fertilizer in early spring can promote healthy growth. If the soil is particularly poor, a second application in mid-summer can be beneficial. It's essential to avoid high-nitrogen fertilizers, which can lead to lanky growth and less hardiness during winter.
Planting Guide: When planting Japanese Boxwood, choose a location that ensures good drainage. Dig a hole twice as wide as the root ball and just as deep. Place the shrub in the hole, making sure it's at the same depth as it was in its original container. Refill the hole, water thoroughly, and mulch around the base to retain moisture and deter weeds. For hedging purposes, space plants about 1 to 2 feet apart, depending on the desired density.
USDA Zone: Japanese Boxwood thrives in USDA zones 6-9.
Japanese Boxwoods are a popular choice for formal gardens due to their ability to maintain a structured shape. They are frequently used for hedging, borders, and topiary designs. Regular pruning will keep these plants looking their best, and their evergreen nature ensures a vibrant garden presence throughout the year. Their resistance to pests and adaptability makes them a favored choice among gardeners seeking low-maintenance landscaping options.