Question: I have an oriental arborvitae, and it has developed these brown patches over the last few years. What causes that? MORE: Find past Master Gardener Q&As. The fungus produces spores in ...

Like most evergreens, arborvitae will struggle and usually die if planted in too-wet soil -- or if other suffocating factors are involved.

Emerald green arborvitae makes a great choice if you are looking for a tight, sleek privacy screen, which is a desirable trait for smaller yards or suburban environments.

There are a few serious pests that infest established emerald arborvitae, such as mites and webworms. Take sealed foliage samples to your local garden center expert to verify the diagnosis.

Emerald green arborvitae (Thuja occidentalis 'Smaragd') is known for its bright emerald green foliage that retains its color year-round.

Arborvitae can thin out from lack of sun, bug problems or stressful weather that causes more of an annual needle drop than usual. Pruning them also can prevent them from pulling apart in ice storms.

Low-maintenance and versatile, arborvitae, also known as "tree of life," has many uses in the home landscape, including as a hedge or screen.

Space trees 3 to 4 feet apart. Some cultivars of arborvitae will turn a washed-out brown in winter, though the most ubiquitous ‘Emerald Green’ doesn’t have that characteristic.

I have eight arborvitae trees for a screen. Most are turning brown. What might be causing this? - G.R., Tulsa Arborvitaes are native to America and are one of our most beautiful needled evergreens ...