Summer Tree Care

How To Keep Your Trees Happy In The Heat!

Watering Trees

To keep trees healthy in the summer heat proper watering in crucial. Water trees deeply and less frequently, not shallowly and often. Lawn irrigation does not provide enough water to maintain a good soil moisture. Heat stress from high temperatures and sunlight can cause leaves to wilt, turn brown, or fall off entirely.

For young trees (ages 1-3 yrs. after planting) water 2 to 3 times per week. For established trees (ages 3+ yrs. after planting) water once a month. Provide a slow, deep watering. Be sure to target the drip line rather than watering at the base of the trunk. This is where the trees feeder roots are located and will allow for better absorption ow water.

Overwatering trees is just as damaging as underwatering. Overwatering can lead to root rot and diseases that thrive in moist soil conditions. Early morning is a good time allowing the water to penetrate deeper into the soil.

Do apply mulch around trees to retain moisture. Choose organic mulches like bark and spread in a circle around the base of the tree 2 – 3 inches deep. Avoid piling mulch around the trunk of the tree which can lead to rotting.

Pruning Trees

Removing dead or damaged limbs can be done at any time of the year. They pose a safety hazard and can attract pests and diseases. However, do not prune healthy limbs during the summer heat. It stresses the trees and can impede its growth and ability to hydrate. Leave any structural pruning for the Fall or Winter. If you are unsure of proper pruning techniques please consult with an Arborist.

Fertilize Trees in Early Summer

Fertilizing trees in early Summer helps them maintain their health. Choose a slow- release fertilizer which will provide nutrients through the season. Spread it evenly around the trees drip line, avoid contact with the trunk. Water well before applying fertilizer to avoid root burn.

Over-fertilization is one of the most common mistakes homeowners make with their trees. Always follow the directions on the package for the proper amount.
Newly planted trees need time to get established before fertilizing.

Different trees have different fertilizer needs. Consult with an Arborist if you are unsure of what to use. However, in general, slow-release fertilizers are preferred in the summer months. They are designed to provide nutrients over a longer period of time.

When choosing a fertilizer, look for one with a balanced NPK ratio (nitrogen, phosphorus, potassium). Nitrogen is important for leaf growth, phosphorus is important for root development, and potassium is important for overall tree health.

If you are fertilizing Fruit trees make sure the fertilizer is for Fruit trees. Using a fertilizer made for Ornamental trees on Fruit trees is unsafe for food consumption.

Protecting Trees from Insects

Summer is a time when trees are vulnerable to insects. Keep your trees well-watered and fertilized. Inspect your trees regularly for signs of insect damage. Look for holes in the bark, discolored leaves, and other abnormalities. Consult an Arborist if you are unsure what is causing the damage.

Consider using insect repellents or natural insecticides. There are many products that are very effective and will protect your trees without harming the environment.