Why does my viburnum have red leaves?
Why does my viburnum have red leaves?
If the spots on your viburnum leaves are more rust-colored than brown, the plants may have a rust infection. This is also caused by various fungi. Viburnum leaves infected by rust will wither and die. This is a contagious disease, so you’ll want to destroy diseased plants in the spring before new growth starts.
Do viburnum leaves turn red?
European cranberrybush viburnum is great for a moist site. Its maple-shaped leaves turn bright red along with red fall fruit. Creamy white spring flowers. Grows to 10 feet tall.
How do you treat rust on viburnum leaves?
Dissolve two 325-milligram uncoated aspirin tablets per quart of lukewarm water. Pour the mixture in a spray bottle and thoroughly coat both sides of the leaves and stems of the viburnum plant with the solution as an organic treatment for rust. Treat the viburnum a second time 7 days later.
Does viburnum like sun or shade?
sun
Viburnums are evergreen or deciduous, depending on the species and the location. Most prefer sun, but some do well in partial shade. Their hardiness is well suited to the cold winters of USDA hardiness zone 7. They are adaptable to a range of soil types and moisture conditions.
What is wrong with my viburnum?
One of the most damaging diseases of viburnum is Armillaria root rot, also known as shoestring root rot or mushroom root rot. This is another fungus, but it affects the roots of the plant and can lead to death. Initially, the leaves and stems of the plant will appear stunted, yellow and leaves may drop to the ground.
Can you over water viburnum?
Over watering viburnum can lead to root rot or other plant diseases. A deep watering each week is a general rule to follow. With more than 150 species of viburnum, some varieties may need more water while others are more drought tolerant.
How do you treat viburnum fungus?
If chemical control is needed, most fungal leaf spots and anthracnose can be controlled with fungicides containing chlorothalonil, thiophanate-methyl, myclobutanil, or mancozeb. Apply when symptoms first appear and repeat every 10 to 14 days as needed.
Does viburnum lose leaves in winter?
Some Viburnums are semi-evergreen – which means in a mild winter they will keep their foliage, but in a harsh winter they will be deciduous. Viburnum burkwoodii, for example, will lose about half of its leaves every winter.