Tuesday, January 25, 2011

Raising your own trees

The National Arbor Day Foundation has provided tips and steps on how to have a successful experience planting and caring for trees in your area.


  • Finding the correct tree. Picking the right kind of tree for your wants and needs is vital. Look at where you want to plant your tree-- do you want a tall, full tree? Or a smaller ornamental tree? When you're buying a tree, look at the size it will be at maturity and plan for that much space. Think about it this way-- if you were buying a puppy, you wouldn't buy a great dane puppy and expect it to stay the same size! Why do this with your tree? Also consider the type of light and soil this tree will receive. Some trees can thrive in sandy soil while others need more loam. Some trees prefer full sun, while others prefer some shade. Just like people, trees have their preferences!
  • Picking a healthy tree. When buying a tree, inspect it closely before planting it. If it is balled and burlapped, the rootball should be appropriate to the size of the tree and firm, particularly around the trunk. Bare-root seedlings should have moist, fibrous roots. Containerized plants shouldn't be tall or spindly-- pick one with a well-developed root system and the height will come later. Roots are more important. The soil plug should be moist and firm. Potted trees should not contain large, circling roots (a sign they have been in there too long!) and the soil and roots should be joined tightly. When choosing a tree to plant along a city street, you'll want an older tree with a significant calliper (trunk width). It should have a strong leader, healthy bark, an uninjured trunk, good trunk taper, wide-angled crotches, and low branches. These will all promote a more successful tree as it grows and matures.
  • Planting your trees. Here is a link to videos, supplied by the National Arbor Day Foundation, that show you, step by step, the best way to plant your trees. Click here to see instructional videos!
  • Mulch is important. Mulch insulates soil, providing a buffer from extremes, retains water, keeps out weeds, prevents soil compaction, and helps prevent damage from lawn-mowers and other yard equipment. To add mulch to your tree, remove grass around a 3-5 foot space around the trunk. Place 1-2 inches deep mulch around the tree, leaving space around the trunk. 
  • Watering your tree correctly. Water newly-planted trees regularly. Not enough water is harmful (especially during the first two years of its new location while it's putting so much energy into rooting!) but too much can cause equally detrimental damage. Too much water can virtually drown the tree-- roots need oxygen. Soil should be damp, not muddy. Some great drought-tolerant trees for our area are the Arizona Cypress, Japanese Zelkova, Mugo Pine, and Thornless Honey-locust.
  • Pruning. Pruning can help promote flowering, new growth, and healthier roots. Pruning during dormancy is a common practice, though spring and summer pruning are also acceptable as long as it is done correctly. Pruning in the fall can put too much stress on the tree before it goes into winter, so it's best not to prune during the fall. To learn how to prune your tree, go to this link.
  • Identifying pests and disease. If you are seeing signs of stress or damage on your trees that you suspect may be pests or disease, contact your local Cooperative Extension Service. 
Knowing how to care for your trees isn't hard, with all the resources you need just at your fingertips!

Benefits of Urban Trees

There are many reasons to love trees. Here are just a few of the reasons we should love them even more here in the city!
  • Trees reduce air pollution. Pollutant particulates (ash, dust, smoke) cause significant damage to our air quality. The valleys in Utah especially seem to suffer from bad air quality. Trees are able to settle out and trap these irritants, thus improving the air quality. Not only this, but they also take the abundant CO2 emitted by vehicles, lawn mowers, motorcycles, etc. and exchange it with oxygen. Each acre of trees produces enough fresh air for 18 people each day.
  • Trees reduce erosion and conserve water. With so much of our city paved, groundwater recharge is cut drastically. Trees increase the groundwater recharge, and help to decrease the negative effects of paving. They also hold soil in place, reducing wind and water erosion and holding back more sedimentation from streams.
  • Trees conserve energy. Strategically planted shade trees can reduce energy costs by as much as 30%.  They can reduce the need to use as much heating or cooling in your home by serving as windbreakers and shade-givers.
  • Trees make the weather better. By providing shade, humidity, reducing wind speed, and reducing sun glare, trees give us an all-around more hospitable local climate.
  • Trees are good for the economy. People are attracted to trees, whether they notice it or not. Homes and apartments with trees sell faster than those without, and people stay longer. Shopping areas with healthy trees encourage shoppers to stay longer, and so spend more. Businesses with trees surrounding them have better employee attendance and have happier employees. Homes with trees around them can have their value go up as much as 15% because of those trees.
  • Trees create sound barriers and create wildlife habitats. Song birds make a much prettier background than street sounds do, and trees dampen the sound from the street while promoting wildlife well-being by providing them a place to live.
When you take into account all the reasons there are to love trees, you realize... there's no reason not to love trees!