Evergreens stay green all year because they have tough and leather-like leaves that are not prone to drying out like the leaves of other trees. Evergreens have these leaves because they are often located in cold climates and have to endure cold winters.Know More
Evergreens, unlike other trees, are able to continue performing the photosynthesis process despite the cold temperatures. They can do this at or below freezing levels and have no trouble getting the energy to their leaves, as long as they have water. Evergreen trees store water and energy throughout the year to ensure they will be able to survive the dry parts of the winter.
Evergreen trees will occasionally go dormant in extreme temperatures, when there is no usable form of water for them to survive. Snow will sometimes help to keep them hydrated throughout the winter, but it is often not enough for them to thrive.
The needles on an evergreen tree are its best defense against the cold temperatures and lack of usable water in the winter. Unlike other leaves, the leaves and needles of an evergreen tree are rolled up into tight tubes, which enable them to conserve water that has been left over from the growing season. They can store water in their leaves for the entirety of the winter and will be able to use it in the event that there is no water available from their environment.Learn More
According to the University of Minnesota Extension, the best time to fertilize evergreens is in early April, prior to the expansion of new growth. Fertilizer may be applied until about mid-July.Full Answer >
Hemlock trees and yews are varieties of shade-tolerant evergreens that are able to thrive in areas receiving little to no direct sunlight. Shade-tolerant shrub varieties include gardenia, Japanese privet and Kohuhu. Available shade-tolerant plant species vary according to geographical region and planting zone.Full Answer >
The best time to prune dead limbs on blue spruce evergreens is in the spring, when new, light green growth appears. Dead limbs should be removed with a hand saw or pole saw 1 inch from a green shoot to encourage vigorous growth.Full Answer >
Weeping evergreens are plants that have green foliage throughout the year. They also have branches that droop to the ground as they grow. These plants are often grown as ornamentals by gardeners and home owners.Full Answer >