The Mexican White Oak (Quercus polymorpha), also known as the Monterrey Oak, consistently ranks as the #1 shade tree for San Antonio. Its combination of fast growth, oak wilt resistance, and drought tolerance is unmatched. Alfaro Tree Sales has been the leading grower of Mexican White Oaks for nearly 50 years at our 40-acre Atascosa nursery.
The Mexican White Oak is classified as highly resistant to oak wilt by the Texas A&M Forest Service — making it the safest large oak choice for San Antonio, where oak wilt has devastated Live Oak and Red Oak populations.
SA’s #1 shade tree vs. the classic choice.
Expected height after planting a 4” caliper tree (20–24 ft at install).
Deep water 2–3×/week for the first season. After year 1, once per week. By year 2, rainfall is typically enough.
No amendments needed — adapted to SA’s alkaline soils. After year 1, apply a balanced 10-10-10 in early spring.
Minimal for first 3–5 years. Remove dead or crossing branches only. Best done mid-winter (Jan–Feb).
October through March is ideal. Summer planting works with extra watering for 60–90 days.
Choose your tree at our nursery or by phone. We deliver it to your property.
Machine-dug hole, native soil backfill, deep watering, and mulch ring installed.
Written care instructions plus a 30-day establishment check from our crew.
3–4 feet per year, reaching 30–40 feet within 10–15 years.
Yes — highly resistant, making them the safest large oak for San Antonio.
Yes — same species (Quercus polymorpha). Different common names for the same excellent tree.
Deep watering 2–3×/week during the first growing season. Drought-tolerant once established.
October through March is ideal.
We offer Mexican White Oaks from younger trees to large specimens. Field-grown at our nursery. Call (210) 202-4284.
Yes. Professional delivery and planting across the SA metro. Request a free quote.
Semi-evergreen. They keep most foliage in mild winters, dropping briefly in late February before flushing new growth in March.
