A planting plan should be prepared before trees are ordered or planted. The planting plan will show the proper location for the planting, the best species for your site, spacing between rows, spacing between trees in the row and the correct number of trees and shrubs needed. The plan will also point out requirements for proper planting to gain initial survival and how to keep trees in a vigorous growing condition.
During the planning phase you should consider the climate you live in. What region and zone do you fall? Check your hardiness zone at http://planthardiness.ars.usda.gov.
Soil is the second most important consideration. Soil properties can limit species selection. Some trees prefer dry, sandy soils while others are better suited for wet, clay soils. Other factors like salinity and pH levels can interfere with the ability of trees and shrubs to absorb nutrients. Map out your soil type at http://websoilsurvey.nrcs.usda.gov.
For planting plan assistance contact the Conservation District at 307.532.4880, ext. 101.