Care for a Leyland Cypress


The Leyland cypress (x Cupressocyparis leylandii) is a pyramid-shaped evergreen that is a hybrid of the Alaskan cedar and the Monterey cypress. The Leyland cypress is a fast-growing tree, gaining up to 3 feet in height each year, often used for privacy hedges and even Christmas trees. Growing to a mature height of 75 feet or more and width of up to 25 feet, the Leyland cypress tolerates annual minimum temperatures down to about -10 to 0 degrees Fahrenheit. You should plant your Leyland cypress tree in full sun to light shade and in well-draining soil.

Step 1

Pull out and remove all weeds or grass growing within 3 feet of your Leyland cypress right after planting the tree. Spread a 2- to 3-inch layer of bark mulch around this area to control weeds and retain soil moisture.

Step 2

Apply a tree-root stimulator to your Leyland cypress right after planting to help the tree establish itself quicker. Follow the dosage and application instructions on the fertilizer's package.

Step 3

Stake your newly planted Leyland cypress to protect it from damaging winds while the roots are becoming established. Insert a stake beside the cypress that is the same height as the tree and tie the tree loosely to the stake using three evenly-spaced twist ties or soft string.

Step 4

Feed your Leyland cypress once per year in early spring. Select a slow-release fertilizer made for evergreen trees that has a nine- to 12-month release and follow the dosage directions on the package.

Step 5

Water your Leyland cypress to supplement rainfall once per week during its first one or two years, or more often during dry spells or droughts. After that, cut back on water to two or three times each month during the growing season.

Step 6

Prune your Leyland cypress once or twice each year after the new growth has hardened off and has a rougher texture. Remove all dead, diseased or damaged branches first, and then thin out any crowded, crossing or inward-growing branches, cutting the limbs back to the trunk.

Step 7

Spray your Leyland cypress tree with a fungicide after pruning or shearing to prevent the open wounds from being infected by a fungal disease. Apply the fungicide once every seven to 10 days for about six weeks, according to the directions on the label.

Tips and Warnings

  • Watch out for insects that can infest and damage your Leyland cypress tree, such as bagworms, scale and spider mites. Spray your tree with dimethoate between March and late May to get rid of bagworms. Treat scale infestations with a similar systemic insecticide, and get rid of spider mites using an approved miticide.

Things You'll Need

  • Bark mulch
  • Tree-root stimulator
  • Stake
  • Twist ties or string
  • Slow-release fertilizer
  • Garden hose
  • Pruning tools
  • Fungicide


  • SavATree: Leyland Cypress Tree
  • Fast Growing Trees Nursery: Leyland Cypress Trees Planting Instructions

Who Can Help

  • Aucker's Nursery: Leyland Cypress
Keywords: Leyland cypress care, plant Leyland cypress, Leyland cypress tree

About this Author

Sarah Terry brings 10 years of experience writing novels, business-to-business newsletters, and a plethora of how-to articles. Terry has written articles and publications for a wide range of markets and subject matters, including Medicine & Health, Eli Financial, Dartnell Publications and Eli Journals.