When Should I Cover My Plants in North Texas?

If you’ve lived in North Texas for any length of time, you know our winters can be confusing. One day it’s sunny and 72°, and the next day we’re dealing with a hard freeze and icy wind. Because of these unpredictable swings, many homeowners wonder: When should I cover my plants in North Texas?

The answer depends on the temperature, the type of plant, and how long the freeze is expected to last. Here’s a simple guide to help you protect your landscape all winter long.

Know the Key Temperature Thresholds

✅ 32°F (Freezing): Cover Tender Plants

When temps drop to 32°F, many flowering plants, tropicals, and annuals can suffer leaf damage. At this point:

• Cover hibiscus, begonias, impatiens, coleus, and other soft-leaf plants.
• Use frost cloth, old sheets, or lightweight blankets (never plastic touching the leaves).

✅ 28°F (Hard Freeze): Cover Most Landscape Plants

At 28°F, cold becomes serious. This is when many shrubs, perennials, and young trees are at risk.Cover:

• Newly planted shrubs
• Small citrus trees
• Tender perennials like lantana or Turk’s cap
• Succulents

For added protection, apply mulch around the roots to help trap warmth in the soil.

✅ 25°F and Below: Heavy Protection Needed

When temps drop below 25°F or stay below freezing for long periods, you’ll need more than just a thin cover.Use:

• Thick frost cloth
• Multiple layers of blankets
• Cardboard boxes over small plants
• Burlap on shrubs
• Heat sources like Christmas lights (non-LED) or landscaping-safe warming cables

North Texas plants can tolerate short freezes, but extended cold is when damage really occurs.

Know Your Plant Types

Some plants can handle cold better than others. Here’s a quick guide:

Cold-Hardy (usually safe until 25–28°F):

• Pansies
• Violas
• Snapdragons
• Ornamental kale
• Shrubs like holly, boxwood, and juniper

These usually don’t need covering unless there’s a long hard freeze.

Semi-Hardy (protect at 28–32°F):

• Roses
• Salvia
• Lantana
• Rosemary
• Esperanza
• Young shade trees

Tender (protect at anything 32°F and below):

• Hibiscus
• Bougainvillea
• Tropical palms
• Succulents
• Annual flowers

These are the first to freeze and need extra attention.

When Cold Fronts Hit Quickly (Which They Do!)

North Texas is famous for “temperature crashes,” where the weather drops 30+ degrees in just a few hours.When you hear the words “hard freeze warning,” “freeze overnight,” or “arctic blast,” that’s your cue to cover up—even if the day is warm.

Tip: Cover plants before sunset so they can trap the ground’s natural heat as temps fall.

How Long Should You Keep Plants Covered?

• Remove covers during the day if temperatures rise above freezing.
• Leave covers on during extended freezes (just lift occasionally to let the plant breathe).
• Uncover plants once the danger of frost has passed to prevent overheating and humidity buildup.

Don’t Forget About Watering Before a Freeze

It sounds backwards, but watering your soil before a freeze helps plants stay warm.Moist soil traps heat better than dry soil, giving roots added protection.

Other Ways to Protect Plants in North Texas

• Mulch 2–3 inches deep to insulate roots.
• Move potted plants inside or place them against a warm wall.
• Use frost cloth instead of plastic, especially during long freezes.
• Group plants together so they share warmth.

As I stated in Best Winter Mulch for Roses, “Organic mulches offer several benefits for protecting roses in winter. They provide insulation by trapping air, keeping the soil temperature steadier and preventing extreme temperature fluctuations.” This same principle applies to other plants in your garden as well.

Final Thoughts

So, when should you cover your plants in North Texas?Anytime temps drop below 32°F for tender plants, and below 28°F for most shrubs and perennials.Because North Texas weather is unpredictable, staying prepared with frost cloth, mulch, and weather alerts will go a long way in keeping your landscape healthy all winter.

While mulching and covering protect your existing plants, perhaps this is the year you design a more resilient and beautiful outdoor space. If you’re in Frisco and ready to bring your landscaping vision to life, learn about our professional landscaping installation services.“

M Valdivia

As a seasoned content manager with a background in education and human development, I bring a unique perspective to lawn care and landscaping topics. For the past four years, I've specialized in creating clear, helpful, and research-backed content for homeowners across North Texas and beyond. While I don’t have a landscaping degree, I collaborate closely with lawn care professionals to ensure every article is accurate, practical, and easy to follow.