Fast-growing evergreens are among the more popular ways to create privacy screens and hedges. The most privacy is provided by evergreens with low branches and dense foliage like Nellie R. Stevens holly and Dwarf Burford.
Other common choices for fast-growing evergreens include the Leyland Cypress, Thuja Green Giant and Eucalyptus.
The eucalyptus is among the fastest growing evergreen shade trees. The tree grows up to 3.6 m (6 feet) per year, is drought tolerant and highly aromatic. The evergreen foliage is a dusty blue green and the peeling bark is just as aromatic as the leaves. Eucalyptus tree stems are frequently used in flower arrangements. Eucalyptus trees grow to a mature height of up to 12 m (40 feet), with a 3 to 3.6 m (10 to 12 feet) width. The trees are adaptable to a wide range of soil condition and are highly drought tolerant. The aroma of the eucalyptus repels fleas and ticks from the garden. Plant in full sun or partial shade for optimal growth.
Thuja Green Giant
The Thuja Green Giant is a fast-growing evergreen that grows 90 cm to 1.5 m (3 to 5 feet) every years once it is established. The trees are drought-tolerant and highly resistant to insects and diseases. Thuja Green Giants have a uniform shape and height. They are easy to grow and are adaptable to different soil and climate conditions. The trees resist snow and ice damage and grow well in sandy loam and heavy clay soils. The trees reach a maximum height of up to 9 m (30 feet), and the foliage stays green and thick all through the year. Plant the Thuja Green Giant in full sun to partial shade. Add mulch to help the tree retain moisture and control the growth of grasses and weeds.
Nellie Stevens holly
The Nellie Stevens holly is among the most popular evergreen varieties chosen for privacy screen and hedges. The plant grows up to 90 cm (3 feet) per year and retains its lush green colour even in winter. The colour and growth of Nellie Stevens is not affected by summer heat or drought. The plants reach a mature height up to 7.5 m (25 feet) but are often pruned heavily to desired height. Nellie Stevens bears red berries during winter. The plant is adaptable to a range of growing conditions, including poor soil, and grows best in full sun and partial shade. Nellie Stevens is considered among the easiest plants to grow.