Trees create green
spaces in communities. The right trees in the right places benefit you, your
home, and your community now and in the future. It is essential to select
living trees to create a sense of place within communities. This publication helps citizens create community green spaces. It encourages both experts and amateurs to plant and grow trees correctly, and to properly maintain new and older plantings. It is designed to be used in contract planting specifications for all public and private tree planting projects. Trees growing in small parks and commons, along streets, and in the yards and gardens of neighborhoods provide a mosaic of green landscapes within a community. As well as providing beauty, trees moderate the effects of heat, sound, air pollution, excess storm water runoff, and soil erosion. Trees also provide a living space for wildlife, enhance property values, and contribute to the economic vitality of communities. Greening and maintaining a community landscape is a long-term commitment that depends on people! Designed, built landscapes with living trees require an infusion of human energy to survive. Parks and other built landscapes need people for completion. CHECKLISTS FOR SUCCESS Presented here are the current recommendations and ecological guidelines for tree selection, planting, and after-care based on good science and cutting edge research. For detailed information refer to sources listed at the end of the guide. Six checklists help you select, plant, and care for trees: Checklist 1: Site Selection (where to plant) Checklist 2: Tree Selection (what to plant) Checklist 3: Useful Tools (planting correctly) Checklist 4: Preparing a Site (planting correctly) Checklist 5: Planting (planting correctly) Checklist 6: After-Care (long-term maintenance plan) Other information includes "Pruning Guidelines" and "Resources: Tree Selection and Care." Take this guide with you as you select a site and the correct tree for it. Mark as many boxes as necessary in each checklist. Use the center section when planting. We live in and among ecosystems. Let's help trees grow to be safe, healthy, and attractive in sustainable, living community landscapes. WHY PLANT A TREE? Decide why you wish to plant. The reasons will help you choose the site. The site you select, whether in your own yard, in a community park, or on the street, affects the choice of tree. |
memorial/gift | increase property value | ||||
privacy | spring bloom/fall color | ||||
reduce soil erosion | fruit nuts | ||||
winter windbreak | landscape design | ||||
summer cooling | wildlife habitat | ||||
reduce air pollution | sight or sound barrier | ||||
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CHECKLIST 1: SITE SELECTION | |||||
Where will you plant your tree? | |||||
public land | park | ||||
private land | parking lot | ||||
lawn | landfill | ||||
rooftop | municipal building | ||||
by a patio | golf course | ||||
garden | school/playground | ||||
along streets | town green of common | ||||
Describe the site: | ||||
underground utilities | sunny | |||
near heavy traffic | shady | |||
overhead utility wires | dry | |||
near winter salted roads | wet | |||
near walkway, driveway, or sidewalk | ||||
Check soil conditions: | ||||
severely disturbed/building rubble | sandy | |||
shallow soil to bedrock | rocky | |||
clay | ||||
silt/loam |
Estimate: |
Space between curb and sidewalk _________________________________________ |
Lot size _____________________________________________________________ |
Fitting the tree to the site: | |
A tree's mature size and shape must be of the proper scale to fit the site and surrounding buildings. | |
Trees have roots. Roots spread beyond the branch area of the tree. Most roots are found in the top 18" of soil; most absorbing roots are found in the top 6" of soil. | |
Trees crowded in small street spaces may crack sidewalks and paved areas. | |
Avoid planting under overhead wires and above under-ground utilities. | |
Do not plant trees near building foundations or walls. | |
If you plan to plant near the street or in a parking lot, know the snow removal plans. | |
Do not plant trees that produce nuts or large fruit
in pedestrian areas. |
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Determine the necessary root growth space for the species you select. Think of clustering trees in a park setting or a parking lot to provide larger soil volumes for safe root growth. Grouping spaces as contiguous pits to provide shared soil volumes is recommended, rather than digging several individual pits. Groupings create their own small environments and may survive better. | |
Identify legal restrictions for planting for both
public and private property. |
CHECKLIST 2: TREE SELECTION |
Which species? |
Show Checklist 1 to the nursery or garden center professional and request a choice of trees appropriate for your site. Ask if the nursery or garden center guarantees its plant material. Note responses in given spaces. |
What is tree's mature height? ______________________________________________ |
What is tree's projected longevity? __________________________________________ |
How fast will this tree grow? ______________________________________________ |
What is tree's mature shape? ______________________________________________ |
Is it cold hardy for your area? _____________________________________________ |
What are its soil requirements? ____________________________________________ |
Does it require a shady or sunny site? _______________________________________ |
Does it require wet or dry site? ____________________________________________ |
Is it sensitive to salt? ____________________________________________________ |
Describe flowers and fruits _______________________________________________ |
What is the autumn/spring color? __________________________________________ |
Is the species unusually susceptible to certain insects or disease, or to storm damage? ___ |
___________________________________________________________________ |
Note: In a community setting be sure to choose a variety of species. Do not plant large numbers of the same species. |
Note Species you choose: |
Choice 1 ___________________________________________________________ |
Choice 2 ___________________________________________________________ |
Which particular tree? | |
Now carefully inspect the trees to choose the healthiest ones with the best form. Reject trees that have: | |
double stems or multiple bunches of stems. Look for a straight, single stem. | |
severe pruning cuts. See "Pruning Guidelines." | |
dead bark, cankers, or signs of disease or insects on trunk or branches. | |
paint on wounds or pruning cuts. | |
tight, vertical branches where bark is squeezed between two branches or between trunk and branch. | |
For commercial municipal contracts, specify that plant material meets the American Standard for Nursery Stock. See "Resources: Tree Selection and Care." | |
Note: Branches of street trees should
be high enough for pedestrians to walk beneath. |
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CHECKLIST 3: USEFUL TOOLS | |
large spade or shovels | |
large tarp to hold soil | |
heavy duty wire clippers | |
small pruning saw | |
hammer or mallet | |
measuring stick | |
pruning shears | |
heavy duty scissors or sharp utility knife | |
gloves | |
stakes and strapping |
CHECKLIST 4: PREPARING A SITE | |
If possible, prepare the site before you bring in the tree. Keep the root ball well watered and keep the tree in a shaded place until you are ready to plant. It is imperative to expose the trunk flare on each balled and burlaped tree before the planting site is dug so that the depth of the planting site can be properly measured. The trunk flare is the point where roots begin to branch from the trunk. (The top of the root ball is not always the trunk flare.) Remove burlap from immediate trunk area of tree. Pull back excess soil around trunk of tree to locate trunk flare. Measure the height from the base of the trunk flare to the bottom of the root ball. Dig to the depth of the trunk flare. |
Trunk flare and top of root ball should be at grade. | |
Dig the space at least 3 times the diameter of root ball. | |
Break up compacted soil. Sides of planting space should not be packed. Leave bottom of space firm | |
Do not amend soil unless planting in building rubble, poor, or severely disturbed soils | |
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CHECKLIST 5: PLANTING | |||||||||||||||||||||||||||||||
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CHECKLIST 6: AFTER-CARE | ||
Water is the critical factor for tree survival after planting. Deep water regularly throughout the first growing season. Allow water to run slowly, soaking the soil, once or twice a week. Do not over water. Water at the perimeter or edge of planting site. | ||
Keep lawn mowers and string trimmers away from tree to avoid wounding trunk. Reduce herbicide use near tree and in surrounding lawn. | ||
Never fertilize stressed trees. Fertilizer is not tree food. It should be applied (if absolutely necessary) only after first year. When used, fertilizer should be applied at the perimeter edge of the planting site. | ||
Start an annual tree inspection program while tree is young to head off problems early. | ||
Replace mulch as needed. Keep grass and weeds out of mulched area. They compete for the same water and elements as tree. | |
Remove stakes and strapping after one year unless site is extremely windy. Do not stake longer than two years. | |
Prune dead or injured branches immediately | |
Prune while young to maintain size and shape beginning in the second growing season. | |
Do not top trees to reduce height. | |
Call an insured tree care professional for advice on large pruning jobs, hazard trees, and insect or disease problems. Nonprofessionals should never prune near utility wires | |
Do not plant flowers under a tree. Do not cultivate soil under the tree. | |
Continue deep watering for five years after
planting. |
PRUNING GUIDELINES |
Pruning should be done with a purpose and not as an automatic
routine. Remove dead and injured branches and those that are crossing and in
contact with other branches. Pruning to maintain size must start when the tree
is young. You can not cut a 50 foot tree back into a 30 foot tree in any way
that is healthy and safe for the tree. Good pruning doesn't show. Prune with particular care. Proper pruning cuts may make the difference between a tree having a long, healthy life or a short life. There is no mystery to pruning and once learned, it becomes second nature. Dead and injured branches can be pruned anytime. The best time to prune living branches is in late dormant season or very early spring before leaves begin to open. Use sharp tools. Make clean cuts. Use equipment safely. Never prune near utility wires. Call insured professionals for work near wires, for hazardous trees, or for pruning larger trees. |
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Before you dig! Laws in most states require you to contact utilities. Most have a central toll free number. If you damage any underground utilities, you are financially liable. See "Resources. Tree Selection and Care." | |
Plan in advance to protect established trees on new construction sites. Fence off wide areas around the trees to protect roots and avoid compacted soil. Don't allow equipment or materials to be stored near the trees. Don't change grade levels or cut tree roots when excavating. Don't top trees | |
Written By | |||
Mary K. Reynolds, Urban Forester State of New Hampshire Department of Resources and Economic Development State Forester's Office, Division of Forests and Lands P.O. Box 1856, Concord, NH 03302-1856 603-271-2214 |
H. Sharon Ossenbruggen, Urban Forester U.S. Forest Service State and Private Forestry Northeastern Area PO. Box 640, Durham, NH 03824 603-868-7600 |
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Resources: Tree Selection and Care Acknowledgments |
For toll free local information for all states, call 1-888-258-0808. |
Fill out this to receive one free copy of this pamphlet. |