Leyland Cypresses are famous for their lightning-fast growth, and if left to their own devices, they can tower up to 100 feet tall! Of course, that takes some time, and how you handle your annual pruning plays a huge role in their development. If you’re wondering how much growth to expect each year or how to keep your hedge looking top-notch, I’ve got you covered with these tips.
Leyland Cypresses: The Ultimate Natural Privacy Screen
These popular evergreens are incredibly hardy; they handle city life like pros and aren’t bothered by smog or exhaust. This makes them a go-to choice for urban gardeners. Because they grow so quickly, planting them side-by-side creates a lush, evergreen wall that works perfectly as a privacy screen or a windbreak.
But don’t think they’re just for hedges! Leyland Cypresses look stunning when planted as standalone specimen trees. They naturally develop a beautiful shape and their rich, deep green color adds a touch of elegance to any yard. You can even grow them in large containers to spruce up a sunny balcony or patio.
Expect Up to 3 Feet of Growth per Year
If you give them a bright, sunny spot that’s somewhat sheltered from harsh winds, your cypresses will really take off. You can expect them to put on anywhere from 2 to over 3 feet (60 to 100 cm) of growth annually. Keep in mind they don’t just get taller—they fill out horizontally, too.
To keep all that vigor under control, regular pruning is key. Most gardeners prefer to keep their cypress hedges at a manageable height of about 15 feet. Plus, keeping them trimmed isn’t just about looks; it actually promotes better plant health and encourages the branches to grow nice and thick.
Aim for Two Trims a Year
If you’re using Leyland Cypresses for a hedge, you’ll want to prune them consistently. Late June is usually the sweet spot for the first trim, and you can head back out with the shears again in August.
Since these trees are such overachievers, some gardeners even opt for a third light trim in early spring. They handle pruning very well, so you can definitely get creative with topiary or specific shapes—just be prepared to touch them up often to keep that crisp look.
One golden rule: Avoid cutting back into the “old wood” (the brown, leafless interior). Like most conifers, Leyland Cypresses won’t sprout new green growth from old wood, which can leave you with permanent bare spots.
Here’s how to prune your cypress like a pro:
- Always use sharp, clean tools. Also, make sure to wear gloves, as Leyland Cypress sap can be an irritant and the plant is toxic if ingested.
- Start by trimming the sides first to establish a nice, straight line.
- Once the sides are set, trim the tops. This applies to young plants, too, to encourage them to fill out.
- A good rule of thumb is to prune back about one-third of the new growth each year.
