01/23/2026
When freezing temperatures are in the forecast, the goal is to trap the heat already in the ground and prevent the plant's cells from rupturing.
Here is a guide to protecting your garden and potted plants effectively.
1. Water Thoroughly (Before the Freeze)
It sounds counterintuitive, but wet soil stays warmer than dry soil. * Why: Moist soil has a higher "thermal mass," meaning it absorbs more solar radiation during the day and releases it slowly at night.
• How: Water your plants in the morning or early afternoon before the freeze. Avoid getting water on the leaves themselves, as frozen droplets on foliage can cause more damage.
2. Use Proper Coverings
The "tent" method is much more effective than wrapping a plant like a lollipop.
• The Technique: Drape your cover so it reaches all the way to the ground and is weighted down with bricks or stones. This traps the heat radiating up from the soil.
• Best Materials: Use breathable fabrics like old bedsheets, blankets, burlap, or professional frost cloths. * Avoid Plastic Touching Leaves: If you use plastic (like a tarp), ensure it doesn’t touch the foliage. Plastic transfers cold directly to the plant and can cause "burn." Use stakes or tomato cages to create a frame.
3. Protect Potted Plants
Containers are more vulnerable because their roots aren't insulated by the earth.
• Move Them: If possible, move pots into a garage, shed, or even under a covered porch.
• Huddle Up: If they must stay outside, group them together. This creates a small microclimate that holds heat.
• Insulate the Pots: Wrap the actual pots in bubble wrap, burlap, or old towels to protect the root balls.
4. Use Mulch for Insulation
For perennials and shrubs, a thick layer of mulch acts like a blanket for the roots.
• Apply 3–6 inches of wood chips, straw, or shredded leaves around the base of the plant.
• Leave a small gap (about 1–2 inches) around the actual stem or trunk to prevent rot.
Tip: Always remove covers the next morning once temperatures rise above freezing. If left on during a sunny day, the heat trapped inside can "cook" your plants or cause them to wake up from dormancy too early.
I forgot to mention :
It is a good idea to bring irrigation timers inside!!!!
Irrigation timers are particularly vulnerable because they often have small plastic internal valves and trapped water that expands when frozen, leading to hairline cracks