Tree & Shrub Planting and Care in San Antonio, TX

Quick answer

Healthy trees and shrubs in San Antonio start with correct planting depth, a wide loosened planting area, mulch and deep watering through the first summer. Fall is generally the best time to plant. For oaks, avoid pruning or wounding from February through June because of oak wilt, and paint any fresh oak wound right away.

Last updated October 22, 2026

Trees and shrubs are the long-term backbone of a San Antonio landscape, and shade is worth a lot in a Texas summer. The two things that matter most here are planting them so roots can survive heat and thin soil, and protecting oaks from oak wilt, a fungal disease that has killed many live oaks and red oaks across Central Texas.

Oak wilt: the timing rule that matters

Texas A&M Forest Service advises against pruning or wounding oaks from February through June, when the beetles that carry oak wilt spores are most active and fresh wounds are most vulnerable. The safer times to prune oaks are the heat of summer and the cold of winter. At any time of year, fresh cuts and wounds on oaks should be painted right away with a thin coat of latex or pruning paint. That includes damage from string trimmers, mowers and construction. If a company proposes spring oak pruning that isn't for an immediate safety problem, ask why.

Planting it right

Plant at the right depth. The root flare should sit at or slightly above grade. Planting too deep is a leading cause of slow decline.
Dig wide, not deep. In clay, a deep hole can hold water like a bathtub. On rocky lots, a wide, loosened area gives roots more room than a narrow hole chipped into limestone.
Loosen circling roots on container plants.
Mulch a few inches deep, pulled back from the trunk. Mulch keeps roots cooler and holds moisture.
Water through establishment. New trees need regular deep watering through at least their first summer. Hand watering and drip are generally treated more flexibly than sprinklers under drought rules; check your provider.

Best time to plant

Fall is generally the best time to plant trees and shrubs in the San Antonio area. Roots keep growing through the mild winter and are better established before summer. Planting in late spring or summer is possible but needs much more water.

Choosing trees and shrubs

Pick species suited to alkaline soil and heat. Plants that need acidic soil often turn yellow here.
Mix species instead of planting only live oaks, which limits the damage if oak wilt reaches the neighborhood.
Plan for deer on the north and west sides; deer browse rules out many shrubs.
Skip invasive species such as ligustrum, nandina and chinaberry. Texas A&M Forest Service publishes invasive plant fact sheets for Central and South Texas.

Pruning basics

Prune with a purpose: dead, damaged, crossing or rubbing branches first.
Avoid shearing every shrub into a ball. It thins the plant and reduces flowering.
Never top trees.
Crape myrtles don't need to be cut back to stubs each winter.

Large trees and removals

Landscaping companies commonly plant trees and care for shrubs and small trees. Large tree pruning, removals and work near power lines are better suited to a tree service with the right equipment and insurance, ideally with an ISA Certified Arborist. Some cities in the area, including San Antonio and Alamo Heights, have tree preservation rules, particularly for larger trees and development projects. Check with your city before removing a sizable tree.

Defensible space in the Hill Country

On wooded lots in Boerne, Helotes and the far north side, dense brush and Ashe juniper close to the house add wildfire risk. Texas A&M Forest Service recommends keeping the area nearest the home lean, clearing dead plant material and spacing shrubs. A landscaper can thin and replant with that in mind.

When you're ready, request a landscaping company for planting or shrub care.

Frequently asked questions

When should I prune live oaks in San Antonio?

Texas A&M Forest Service recommends avoiding oak pruning from February through June, and pruning instead in the heat of summer or the cold of winter. Paint any fresh oak cut or wound immediately, any time of year.

What trees do well in San Antonio?

Trees adapted to heat and alkaline soil do best. The Bexar County AgriLife Extension office and Texas A&M Forest Service publish recommended tree lists, and mixing species reduces the risk of losing everything to one disease.

Do I need a permit to remove a tree?

It depends on the city, the tree's size and species, and whether it's part of a development project. San Antonio and Alamo Heights both have tree preservation rules. Check with your city before removing a large tree.

Sources and further reading

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