How to Protect Your Landscape From Freezing Temperatures in Central Texas

While winters in Central Texas are generally mild, sudden cold snaps and hard freezes are not uncommon. As recently as January 2026, Waco experienced an Arctic front with significant ice accumulation and temperatures dropping well below freezing. When temperatures drop unexpectedly, your landscape can suffer serious damage—especially if it’s not properly prepared. Taking proactive steps to protect your lawn, trees, shrubs, and irrigation systems can help you avoid costly repairs and keep your yard healthy year-round.

Know When a Freeze Is Coming

The first line of defense is awareness. Central Texas weather can change quickly; for instance, the 2025 holiday season ended with highs in the 70s before plunging into freezing conditions just weeks later in January 2026. Monitor local forecasts and be alert for freeze warnings. A freeze is typically defined as temperatures at or below 32°F, while a hard freeze occurs when temperatures drop below 28°F for several hours. Both can damage plant tissue, irrigation components, and soil structure if unaddressed.

Cover Vulnerable Plants and Shrubs

Cold-sensitive plants such as citrus trees, tropical varieties (like hibiscus or bougainvillea), or young shrubs are especially at risk. Use frost cloths, old blankets, or burlap to cover them. Secure covers at the base to trap heat rising from the ground—a method arborists call the "tent" approach. Avoid using plastic directly against foliage, as it conducts cold and traps moisture that can cause freeze burns. If using plastic as a waterproof top layer, ensure a fabric barrier remains between the plastic and the plant. Remove covers during the day when temperatures rise above 32°F to allow for sunlight and air circulation.

Strategic Winter Watering

Moist soil retains heat better than dry soil, making hydration a vital tool against cold stress. For established lawns and native plants, reduce watering to 30–40% of your peak summer schedule. In the event of a predicted freeze, water your plants 24 to 48 hours in advance. This allows the soil to act as a "heat sink," absorbing solar energy during the day and radiating it slowly at night. Avoid late afternoon or evening watering immediately before a freeze, as moisture on stems can freeze and cause tissue damage.

Mulch for Root Insulation

Applying a layer of mulch—2 to 4 inches thick—acts as an insurance policy for your root systems. Mulch moderates soil temperature swings and protects shallow roots from the freeze-thaw cycles common in Waco. Organic options like shredded bark, pine straw, or even mulched fallen leaves work well. When applying, keep mulch a few inches away from the trunks of trees and the crowns of plants to prevent moisture-related rot.

Protect Your Irrigation System

Freezing weather can crack pipes, valves, and backflow preventers—the most common point of failure in Texas irrigation systems. To prevent this, shut off the water supply at the main valve and drain the lines. If your system features a backflow preventer above ground, wrap it in specialized insulation sleeves or heavy foam covers. Ensure your irrigation controller is set to "off" or "rain mode" to prevent the system from activating during a freeze, which could lead to ice accumulation on your landscape and damage to the pump.

Avoid Early Pruning and Cutbacks

A common mistake is pruning plants in the late fall or early winter. Pruning encourages tender new growth that is highly susceptible to frost. Additionally, leaving dead or brown foliage on woody perennials like Lantana through the winter provides a natural layer of insulation for the plant's crown. Wait until the risk of hard freezes has passed—typically late February or early March in Central Texas—to assess damage and perform major cutbacks.

Use Windbreaks for Added Protection

If your landscape is exposed to harsh north winds, plants can suffer from rapid moisture loss and wind chill. Erect temporary windbreaks using burlap screens or sturdy fencing to block direct gusts. For potted plants that cannot be moved indoors, grouping them together against a south-facing wall and wrapping the containers in blankets or bubble wrap can help preserve root warmth.

Professional Winterization Services

The best way to ensure your yard is freeze-ready is to work with a local landscaping team familiar with the specific challenges of the Waco climate. At Waco Landscapes & Irrigation, we offer custom cold-weather prep services, including professional irrigation winterization, protective mulching, and plant health assessments to ensure your landscape survives the winter and thrives in the spring.

Protecting your landscape from freezing temperatures doesn’t require expensive equipment—just a little preparation and local expertise. Contact Waco Landscapes & Irrigation today to schedule your winter prep and keep your yard thriving all year long.