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Evergreen trees and shrubs are generally more expensive than their counterparts, although many feel that they are well worth the extra expense not only for their year-round beauty, but also their reliability and longevity. Evergreens can range all the way from broadleaved shrubs like rhododendron to the tall pines and spruces that many people think of as simply "evergreens".

Perhaps the most common of evergreen trees is the pine. It's noted for its long, soft needles and its rapid growth. In fact, they often attain 60 to 80 ft. maturity very quickly.Red pine is popular as well and useful for creating textured backgrounds and windbreaks. The Ponderosa pine is a more compact tree that is often used for wind protection and ornamental purposes. The Austrian or black pine, with its spreading branches is very commonly used in the Midwest.

Perhaps the most widely planted evergreen that is used for a windbreak is the Norway spruce tree. It grows very fast, it's very hardy, has short dark green needles, and is shaped like a pyramid. The Black Hills spruce tree is also very tough and resistant to drought. It grows much slower than the Norway spruce but can still achieve a height of 40 ft. in time.

White spruce on the other hand, can mature close to 60 to 70 ft. in height and is often used in landscaping designs. Colorado blue spruce is generally hardy, however it does suffer some in extreme heat and drought conditions.

Red Cedar is perhaps the most popular of the evergreen Cedar trees. It's often used as an ornamental tree for both hedges and windbreaks. It tends to be very tough and hardy, and takes winter very well.

Perhaps the best overall Evergreen tree for windbreaks and screening is the Douglas fir tree. It's hardy and drought resistant, grows fast, has a pyramid shape, and looks great in most landscape designs. The Balsam fir, which is also known as the Christmas tree, is well-known for its fragrance and unique appearance. On the other hand, the white fir tree has an attractive silver color instead.

The Juniper family of Evergreen trees is often used in planting, with the tall types such as the upright Juniper being used as a textured background, and the spreading types like the Pfitzer juniper being used for groundcover and edgings.

Yew, has thick glossy needles and upward reaching branches, and can be used as both a shrub and a tree. In fact, they can even grow well in sun and shade, making it one of the most versatile evergreens.

Evergreens as a whole can be adversely affected by hot, dry weather conditions and need to be watered every couple of weeks or so at this time. Be sure to water it enough so that the moisture will reach deep into the ground at least 6 in. or so. Applying a layer of mulch in dry weather can also help protect against moisture loss during this period.

It's a good idea to prune evergreens in the late spring just before the new buds appear. And in the late fall give them a good deep watering to help prevent the branches drying out and cracking under the weight of snow or the force of wind during the winter.

As you can see, there are a lot of varieties of evergreen trees that accomplish many different tasks in a home landscaping design. Hopefully this article will help you choose the one that will work best for your home and help you care for it properly too.

Thad Pickering writes on many consumer related topics including home improvement. You can find free landscaping ideas and front yard landscaping ideas by visiting our Home Improvement website.

The art of growing plants without soil (hydroponic growth) is now so advanced that it can help humans to survive for long periods in previously inhospitable environments such as Antarctica.

Traditional plant growth relies on plants absorbing minerals and nutrients from the soil. Plants do not actually need to be placed in soil to obtain the nutrients they need. In fact the soil is simply there to support them. There are many areas on Earth which do not have the necessary soils to support plant growth, preventing humans from living there.

Over recent years, this restriction has been combated by growing plants hydroponically. Hydroponics uses nutrient solutions applied directly to the roots instead of soil, in order to allow the plants to grow in unlikely places.

One of the earliest hydroponic success stories happened on Wake Island in the Pacific Ocean. The island was first discovered in 1568 by lvaro de Mendaa de Nevra, who noted that it was a low, barren island. Later, when the island was surveyed in 1840 by the US Commodore Charles Wilkes, it was officially recorded as having no fresh water.

In the 1930s, Pan American Airlines began using the island as a refuelling stop between America and China. The airline constructed a village for its workers; the first time the island had been inhabited by humans. Because of the distances involved, it would have been expensive and impractical to import fresh food to the island, so the islanders relied on hydroponic methods for growing food instead for many years.

Hydroponic techniques are not as new or miraculous as some people may think; they have been developed over many centuries. However, perfecting the nutrient solutions which are used will really affect the success of hydroponic crops in remote or harsh conditions.

Perhaps the harshest environment of all is Antarctica. At the McMurdo station on Ross Island, a community of nearly 1000 people survive by relying on hydroponic techniques to grow food.

These techniques allow people at this icy station to enjoy fresh lettuce, spinach, tomatoes, peppers, cucumbers, fruit and herbs for use in cooking, throughout the year.

The Antarctic environment is unusual because it enjoys four months of continuous sunlight, followed by four months of darkness, not to mention high winds and extremes of temperature.

To survive this harsh climate, seeds are planted in a hydroponic mix of perlite and vermiculite and placed in a totally enclosed, insulated greenhouse at the station. Nutrient solutions are fed to the plants to ensure healthy growth and other environmental factors are dealt with by using hydroponic techniques. For example, artificial lighting is used to simulate a more normal day to night pattern in which the plants will grow best. The air is kept warm and humid by fans and hydroponic ventilation equipment, and at night an electric furnace is used to generate more heat. This gives the fresh fruit and vegetables ideal growing conditions to allow them to flourish.

Hydroponic techniques are now so advanced that we really are able to grow food anywhere on Earth, regardless of the external environment or the availability of light.

Growing food hydroponically is a fascinating process, making commercial sense for many growers who are now able to produce on a large scale without an enormous land investment.

In fact, the same techniques which keep people alive in Antarctica can be practiced in your own home using a hydroponic kit available online from Great Stuff Hydroponics. Kits and equipment for commercial growers are also available online, along with information downloads and expert advice.

Find out more about Great Stuff Hydroponics at http://www.hydroponics-hydroponics.com

About Great Stuff Hydroponics

Great Stuff Hydroponics is based in Middlesborough (UK) and supplies a vast array of hydroponic equipment for all your hydroponic plant cultivation needs. The Great Stuff Hydroponics showroom is open Monday to Friday 9am-5pm and Saturday10am-2pm. Sales can also be placed online at http://www.hydroponics-hydroponics.com

Please direct all media queries, requests for press information and editorial details, to Rebecca Appleton. Tel: 0208 123 5178 or email: press@topposition.co.uk