Tall evergreen shrubs is a plant that can grow to be over 15 feet tall. It has small, dark green leaves and can produce white or pink flowers in the spring. This shrub is often used as a privacy hedge or screen.
Related plant:
Tall Oregon Grape
Related plant:
Tall Flowering Shrubs
About soil condition, tall evergreen shrubs need well-draining soil that is rich in organic matter. The soil should be moist but not soggy, as the roots will rot in waterlogged conditions. A thick layer of mulch will help to keep the roots cool and moist in summer. You can amendment the soil with compost or manure before planting, and also top dress with a layer of compost every year or two.
So, like the other plants, evergreen shrubs need sunlight to grow. However, because they are taller, they may need more sun than other plants. They may also need more sun than other plants because they have more leaves. When choosing a location for your evergreen shrub, make sure it gets at least six hours of sun each day.
The temperature condition is critical to the growth of tall evergreen shrubs. If the temperature is too cold, the shrubs will not grow. If the temperature is too hot, the shrubs will not grow. The ideal temperature for tall evergreen shrubs is between 60 and 70 degrees Fahrenheit.
Ideal humidity condition for this plant is around 50%. If the humidity gets too low, the leaves will start to turn brown and drop off. If the humidity gets too high, the leaves will start to turn yellow and drop off.
For the fertilizer, this type of plant does best with a low-nitrogen fertilizer that is high in phosphorus. The root system is very important to the plant, so make sure it is well-established before transplanting.
Pruning is an important part of tall evergreen shrub care. By pruning, you can remove dead or diseased branches, control the shape and size of the shrub, and encourage new growth. When pruning, be sure to use clean, sharp pruning shears. Make cuts at a 45-degree angle, just above a bud.
Propagation is relatively easy for tall evergreen shrubs; stem cuttings can be taken from new growth in late spring or early summer. Cuttings should be at least 6 inches long and taken from the tips of the stems. The bottom leaves should be removed and the cuttings should be inserted into a moist soil mix. After a few weeks, the cuttings should have rooted and can be transplanted into individual pots.
Usually, the plant growth rate is pretty fast. If you are looking for a fast-growing shrub, you should consider one of these varieties. Some of the most popular evergreen shrubs include Leyland cypress, arborvitae, and juniper.
Common problems for this kind of plant include over-fertilization, which can lead to excessive growth and weak stems; incorrect pruning, which can result in bare patches; and sun damage, which can cause the leaves to turn brown or yellow. Proper care can prevent these problems and keep your tall evergreen shrubs looking their best.
Source:
Overview of Evergreen Shrubs - University of Illinois Extension
Selecting Evergreen Trees | Oklahoma State University
Selecting Landscape Plants: Broad-leaved Evergreens