How to Manage a Yard Full of Pine Trees

Grow pine trees in a yard that gets full sun. The trees thrive in well-draining, acidic soil.

Space pine trees so there is at least 25 feet between them. They will grow lopsided if shaded by other pine trees. The air circulation among a yard full of closely planted pines may not be sufficient, and the trees can become afflicted with disease. The only exception is if you want the trees in a row to provide a wind break.

Fertilize the trees if your soil is alkaline. Apply a food with a 9-9-9 nitrogen-phosphorus-potassium ratio in the spring. Dig holes with a steel rod 8 inches deep and 3 feet apart. Space them in a ring around each pine tree, just under the tree drip line. Pour 1/4 lb. of the solution in each hole.

Water pine trees regularly as they grow. If you notice brown needles or premature needle drop, the heat and dry weather are affecting the trees. Give pines a long, deep watering once a month, allowing the water to soak the top 2 feet of soil.

Prune pine trees in early June to early July. This is when new buds are in the "candle" stage. Make pruning cuts just above a side bud or branch. Snap off 1/2 to 2/3 of each candle to control the tree's growth and keep it smaller. If there are unwanted branches growing on the lower portion of the pine tree, cut them off in late winter.

Remove volunteer seedlings as they sprout up beneath the pine trees. They will cause competition for water and other nutrients. Pull them up while their roots are still weak. Use a trowel to lift them from the ground if needed.