Blue moss cypress, known also as boulevard cypress, is a very nice tree on first glance. Sold in garden centers as small trees and maturing in the landscape, they have unusual foliage texture and a vibrant blue color. But on closer inspection, or after a few years, dead foliage that has built up in the tree is seen, and it can be unsightly. This is most pronounced in blue moss cypress topiaries. This article will detail how to get rid of the brown foliage buildup in blue moss cypress.
The dead foliage only becomes a problem when it can be seen, so there only is a need to remove what can be seen. Put on a pair of gloves and rub the dead foliage, causing the dead material to break down and fall. Shake the branches to cause particles stuck to dislodge and fall to the ground. This does not clean up all brown but gets rid of the majority, and is satisfactory for most trees to look good, especially trees seen mostly from a distance.
On spiral, pom-pom, and poodle topiaries, some brown can still be visible after rummaging it out of the tree. With clippers, trim out any dead material from the tree. It takes about an hour to thoroughly and meticulously clean all the dead material from the tree, but is worth it as it keeps the tree looking good. Because cleaning foliage makes a mess, carry potted trees out of the way before cleaning. If the tree is in the ground, either spread a tarp to catch the mess or clean it afterwards.
To minimize further development of brown foliage, keep tree well-watered but with sufficient drainage, never letting it dry out. In most planted situations, the tree will maintain vigorous growth and new foliage will cover brown foliage. Unfortunately, brown foliage is one of the drawbacks to this otherwise very reliable and versatile tree, and will have to be dealt with. By properly dealing with brown foliage, your blue moss boulevard cypress will look good throughout the season, minimizing time needed to be spent cleaning the foliage.