How Much Do I Have to Water My New Tree?
A Guide to Watering Live Oaks in Central Texas
Planting a new tree is one of the best things you can do for your yard — especially when it’s a Texas live oak, one of the most iconic and hardy trees in the Austin and Georgetown area. But even a strong tree like a live oak needs the right start to thrive. At Brents Tree Service, one of the most common questions we get from homeowners is: “How much should I water my new tree?” Here’s what you need to know about watering new live oaks in Central Texas’ hot, often unpredictable climate.
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Why Watering Matters for Young Live Oaks
Newly planted trees are still developing their root systems. Unlike established live oaks, which can handle long dry spells, new trees depend on consistent moisture to take root and grow strong. Too little water can cause stress and leaf drop. Too much water, on the other hand, can suffocate the roots and lead to rot. The key is finding a balance — deep, consistent watering that encourages roots to grow down and out.
How Often Should You Water a New Live Oak?
First 2 Weeks After Planting Water every day — yes, every day. Give your new live oak about 5 to 10 gallons of water per day, depending on the size of the tree and how quickly the soil dries. This keeps the root ball moist and helps the tree adjust to its new home. Weeks 3–12 Cut back to watering every 2 to 3 days. Continue to water deeply, providing about 10 to 15 gallons each time. Focus on soaking the soil around the root zone — not just the base of the trunk. 3–6 Months After Planting Water once a week, depending on rainfall and soil conditions. Each watering should be deep enough to reach 10–12 inches below the surface. If you dig down and the soil still feels damp, you can wait a day or two before watering again. After 6 Months Once your live oak starts showing new growth and is established, you can reduce watering to every 10–14 days during dry periods. Mature live oaks are drought-tolerant, but young ones benefit from occasional deep watering during hot Texas summers.
Pro Tip: Adjust for Weather and Soil
In Central Texas, summer heat and clay-heavy soil can make watering tricky.
- Sandy soils dry quickly — water more often.
- Clay soils hold water longer — water less often, but deeply.
- After heavy rain, skip a day or two to prevent overwatering.
If you’re unsure, dig a small hole 6 inches deep near the root zone. If the soil feels dry and crumbly, it’s time to water.
Best Ways to Water a Live Oak
- Slow, deep watering: Use a soaker hose or drip irrigation system around the base of the tree.
- Tree watering bags: Great for consistent moisture release over several hours.
- Avoid sprinklers: They only water the surface and encourage shallow root growth.
Pro tip: Keep mulch around the base (2–3 inches thick, but not touching the trunk). Mulch helps retain soil moisture and regulate temperature — two things every new tree needs.
How Long to Keep Up the Routine
A good rule of thumb: Keep watering your new live oak regularly for at least one full growing season. After that, your tree’s roots will be established enough to handle the Texas weather with minimal watering — though occasional deep watering during long dry spells is always helpful.
Need Help with Your Trees?
At Brents Tree Service, we’ve been caring for live oaks and native Texas trees in the Austin and Georgetown area for years. From planting and pruning to health inspections and tree trimming, our team knows how to help your trees grow strong and stay healthy year-round. If you’re unsure whether your new tree is getting too much or too little water — or if you notice signs of stress — we’re here to help. Call Brents Tree Service today for expert tree care and advice. We’re your local tree professionals — keeping Central Texas trees healthy, beautiful, and safe.