Protecting
plants from
frost
Suppose you spend most of the warm weather nurturing and
perfecting your outdoor landscaping. In that case, winter’s entry
can cause considerable damage to exposed greenery.
Frost is a significant risk for unprotected plants. The ice crystals
that form on leaves when air temperatures dip below 32 degrees
cause injury and sometimes kill flowers and shrubs.
As winter approaches, it’s necessary to protect plants to prevent
scalding, frozen roots and damage to foliage. In warmer regions,
merely adding a mulch layer can add enough security to get your
greenery through the cold. However, in cooler climates, extra
steps are necessary to ensure the survival of your plants.
• Humidity and moisture:
Humidity is a beneficial
condition that may protect
your plants. When the air
is dry, the soil’s moisture
is evaporated, creating
a warmth that provides
greenery security.
Once frost is imminent
in your area, it’s crucial to
provide your plants with extra levels of protection.
Recognizing frost conditions
Protective measures
Paying attention to your local meteorologist can provide a heads
up of incoming frost alerts. The Farmer’s Almanac offers helpful
tips to recognize its approach.
• Clear sky: Falling afternoon temperatures and cloud-free skies
create the perfect conditions for frost development. Once the sun
sets, the heat radiates upwards, lowering the temperatures near
the ground. However, when clouds are present, they trap the heat
and keep warmer conditions toward the surface.
• Wind: Even a gentle breeze can prevent cold air from settling
near the ground and plants. When your region faces freezing
conditions on a windless day, frost will likely be an issue.
Many plants and trees will benefit from anti-desiccant sprays that
provide a secure coating to specific foliage. Follow the instructions
on your product as some regions require additional treatments
throughout the winter.
The spray is also helpful in strengthening bulbs before storing
and transplanting stressed shrubs before replanting.
The experts at Better Homes and Gardens recommend shielding
plants with screens or burlap coverings that allow some sunlight
and air circulation. Using these barriers helps shrubs or plants
avoid contracting disease during frosty conditions.
Falling afternoon
temperatures and cloud-
free skies create the
perfect conditions for
frost development
Our Coast Property Lines • December 2020 | 13