Trees!!

Arbor Day Blog Post 3

Trees are a wonderful addition to any landscape and have a great deal of benefits. I love trees, all trees! As an ISA Certified Arborist, I have a passion for planting trees and keeping our existing trees healthy. With Arbor Day coming up, it is a great time to begin planting trees.

2016-04-02 10.11.52Trees are vital to our lives. They provide us with oxygen to breathe, they increase the value of our homes, and they make us happy and healthy. There are many great trees to choose from that will do well in Nebraska. If possible, a native tree will do much better in our growing conditions because they are adapted to the weather conditions common in Nebraska. At the very least, the tree you choose must be suited to live in your hardiness zone, Southeast Nebraska is in zone 5b.

Good tree choices include:

2014-06-12 16.10.39

  • White pine
  • Norway spruce
  • Colorado Blue spruce
  • Black Hills Spruce
  • Ponderosa Pine
  • Jack Pine
  • Eastern Red Cedar
  • Concolor Fir
  • Douglas Fir
  • Baldcypress
  • Catalpa
  • Gingko
  • Cottonwood
  • River birch
  • Sycamore
  • Linden
  • Kentucky Coffeetree
  • Elm Hybrids
  • Maples
  • Oaks
  • Tree Lilac
  • Hackberry
  • Black walnut
  • Shagbark Hickory
  • Pecan
  • Chestnut
  • Sweetgum
  • Chanticleer or Cleveland Select Pear (not Bradford)
  • Serviceberry
  • Honeylocust (thornless)
  • Redbud
  • Black Locust
  • Pawpaw
  • Horsechestnut

When looking for trees for your landscape, remember to utilize diversity. Increasing species diversity prevents us from “putting all our eggs in one basket” and prohibits any single insect or disease from destroying a community’s entire forest resource. Pine wilt, Dutch elm disease and the approaching emerald ash borer (EAB) all reinforce the importance of species diversity. In fact, forestry experts recommend that no single species make up more than 10 percent of the entire community forest resource. This comes from the ReTree Nebraska page. ReTree Nebraska is an affiliate of the University of Nebraska-Lincoln that focuses on “raising public awareness of the value of trees and reverse the decline and improve the sustainability of community trees and forests”. ReTree has been working on a list of great trees for Nebraska, each year adding more trees to that list. In 2016, they added American Linden to that list.

For care of any tree, water is a vital element to health and growth. Always water newly planted trees, shrubs, or any other plant immediately after planting. Trees should be watered every 10-14 days throughout the growing season and even some during the winter on warmer days. Each watering should give the tree 1-2 inches of water. The best way to determine if a tree needs to be watered is to insert a soil probe or 12-inch-long screwdriver into the ground around the tree. If it goes in easily there is no need to water, if it is difficult at any point then water is necessary for the tree.

tree mulchA mulch ring should be established and maintained around every tree. Mulch helps to keep the roots cool in the summer and regulated to a uniform temperature through the winter rather than the temperature fluctuations we often see during the winter months. Mulch will also help keep weeds down and reduce competition from those weeds for water and nutrients. Mulch also reduces damage to the trunk of trees from lawn mowers and trimmers. Finally, mulch is a way to hold moisture for use later by the tree. Mulch rings should be only 2-3 inches deep and in a circle around the tree at least 2-3 feet out. Organic mulches are a better choice than inorganic mulches. This mulch will need to be renewed every 1-2 years to maintain an effective layer because it will break down and improve the soil over the growing season.

 

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