Leyland cypress tree spacing is dependent on the desired usage of the tree, which can include rows of Leyland cypress for a single hedge, or as a single garden planting.
A hybrid of the Monterey cypress and the Alaska cedar, the Leyland cypress tree, or Cupressocyparis leylandii, originated in England in 1888. Growing best in USDA Hardiness Zone 7, it can withstand temperatures no less than 0 degrees F and is adaptable to most soils.
When used as a property hedge, Leyland cypress trees are one of the most widely grown in the United States. Fast-growers, they climb 3 to 4 feet a year and provide a solid wall of privacy. When hedge-planting, space leyland cypress trees 6 feet apart.
Spacing for Height Control
At maturity, a single leyland cypress tree can grow up to 60 or 70 feet, but only 20 to 30 feet if planted in 6 foot-apart rows.
Spacing for Spread Control
Leyland cypress trees can grow up to 15 to 20 feet in diameter if planted individually, but will maintain a diameter of 6 feet if planted in rows 6 feet apart.
The Leyland cypress tree is known for a symmetrical, pyramid shape that does not require any pruning. However, if the size or shape needs more control, Leyland cypress are adaptable to pruning when used for hedging.