Hamamelis intermedia is a witch hazel hybrid, made by crossing the H. japonica witch hazel from Japan and China's H. mollis witch hazel variety. Typically grown for ornamental purposes, the plant is prized for its fragrant, long-lasting yellow, red or orange blossoms. Provide the Hamamelis intermedia shrub with the growing environment it needs to achieve its full ornamental potential.
The Hamamelis intermedia shrub can handle temperatures as low as -15 to -20 degrees Fahrenheit and thrives in USDA hardiness zones 5 through 8. This means that the plant can be grown in several cooler states, including northern Pennsylvania, Illinois and Maine's coastal regions.
The plant requires full sun to partial shade. You will typically see the most vibrant colors when the plant is given more sunlight.
Though the Hamamelis intermedia shrub can handle alkaline soil, it does best in slightly acidic dirt, according to the University of Illinois. Soil testing kits are available at most garden stores and nurseries to help you determine your soil's pH. Whatever the pH, the shrub needs well-drained dirt.
Food and Water
Regular feeding with a standard shrub and tree fertilizer--applied according to the product's label, since potency varies widely by manufacturer--ensures proper growth of the shrub. The shrub also requires regular watering so that the soil is consistently moist. Watering frequency varies by climate. Using a spade to check soil moisture at a depth of 6 to 8 inches can help gardeners determine whether more water is needed.
Gardeners should give the Hamamelis intermedia lots of space and avoid crowding the plant, according to the University of Connecticut. The shrub can reach a height of up to 20 feet and a width ranging from 15 to 20 feet.