The following recommendations are based on the experience of many Colorado horticulturists over the years. Soil and Exposure Fruits are best grown in well-drained soil. If the soil is a heavy clay type, it is best to condition it to a depth of at least 12 inches with a coarse, organic material such as aged barnyard manure. Thoroughly mix the organic matter with the soil to help open the soil and allow air and water penetration. When planting a tree, dig the hole extra wide and improve the backfill before the tree is put in the ground.
Most fruits prefer full sun.
Raspberries require full sun but must be protected from drying winds. To reduce frost damage, locate trees away from low spots in the yard, particularly where there are fences or other obstructions that stop the flow of air. Avoid placing fruit trees too close to buildings, particularly south and west exposures, as these will tend to cause bloom to occur early, subjecting them to frost injury. Apples Many varieties of apples can be grown successfully in Colorado. Perhaps the biggest problem is fire blight, a bacterial disease that tends to strike crabapples.