Buxus harlandii (Harland Boxwood)
Description:
Buxus harlandii, commonly known as Harland Boxwood, is a slow-growing, evergreen shrub native to China and Taiwan. It is known for its distinctive, deeply-lobed, glossy green leaves and compact, dense growth habit. Harland Boxwood has an attractive rounded form and is often used in formal gardens, as a low hedge, or in topiary due to its ability to be easily pruned and shaped. This species is also particularly resistant to heat, making it a good choice for warmer climates.
Light Requirements:
Harland Boxwood thrives in full sun to partial shade. It performs best in partial shade, especially in hotter climates, where protection from the intense afternoon sun can prevent leaf scorch. In cooler climates, it can tolerate full sun but prefers some afternoon shade for optimal growth.
Soil:
This boxwood prefers well-draining, fertile soil with a slightly acidic to neutral pH (6.0-7.5). It can tolerate various soil types, including loamy, sandy, or clay soils, as long as they drain well. Amending the soil with compost or organic matter will improve both fertility and moisture retention, which is important for healthy growth. Harland Boxwood does not tolerate soggy conditions, so proper drainage is essential.
Height/Spread:
Buxus harlandii typically grows 3 to 4 feet tall and wide, making it an ideal choice for small hedges, foundation plantings, or as a specimen plant in a formal garden. Its naturally compact and rounded shape makes it perfect for topiary and other garden designs requiring structure.
Hardiness Zones:
This plant is hardy in USDA Zones 6-9. It tolerates both cold winters and hot summers, although it may require some protection from harsh winds in colder regions.
Winter Care:
In regions with cold winters, Harland Boxwood may benefit from some winter protection to prevent leaf burn caused by strong winds or frost. Mulching the base of the plant in late fall helps insulate the roots and retain moisture. Wrapping the plant with burlap in particularly cold or windy areas will protect it from winter damage. In milder climates, no special winter care is required.
Watering:
Harland Boxwood prefers consistently moist soil, especially during the first few years of growth. Water regularly to keep the soil evenly moist, but allow the top inch of soil to dry out between waterings to prevent root rot. Once established, it is moderately drought-tolerant but will benefit from deep watering during prolonged dry spells.
Fertilizing:
This plant benefits from light fertilization in early spring. Apply a balanced, slow-release fertilizer to encourage healthy growth and vibrant foliage. If the soil is already rich in organic matter, additional fertilization may not be necessary. Over-fertilizing should be avoided, as this can lead to excessive foliage growth with reduced resilience to environmental stresses.
Pruning:
Pruning is important for maintaining the desired shape of Harland Boxwood. It responds well to pruning and can be trimmed in early spring or summer to shape the plant and remove any dead or damaged branches. Light, regular pruning will promote dense growth and maintain its compact form, making it ideal for formal hedges or topiary. Avoid heavy pruning in late fall, as it may stimulate new growth that could be damaged by winter cold.
Propagation:
Buxus harlandii can be propagated by softwood cuttings taken in early summer. Cuttings should be 4 to 6 inches long and placed in moist potting soil. Keep the cuttings in a shaded, humid environment until they root. Harland Boxwood can also be propagated by seeds, but this method is slower and less commonly used.
Pests and Diseases:
Harland Boxwood is relatively pest-resistant, but it may occasionally suffer from boxwood leafminer, scale, or spider mites. Treat infestations with insecticidal soap or neem oil. Root rot may occur in poorly drained soil, so ensure proper drainage. Harland Boxwood is generally more resistant to boxwood blight than other species, but good air circulation and avoiding overhead watering can further reduce the risk.
Summary:
Buxus harlandii (Harland Boxwood) is a compact, evergreen shrub known for its distinctive, deeply-lobed green leaves and dense growth habit. Thriving in full sun to partial shade and well-draining soil, it grows 3 to 4 feet tall and wide. Hardy in USDA Zones 6-9, this low-maintenance plant requires regular watering, light fertilization, and pruning to maintain its shape, making it an excellent choice for formal gardens, hedges, topiaries, or foundation plantings.