The grip of frost currently affecting Italy has forced many of us to take extraordinary measures to protect plants from the snow, which is settling even at lower altitudes. While snow itself isn’t inherently harmful (in fact, it can create a protective layer against frost), the real issue comes from the persistence of low temperatures and ice. The greatest risks are excessive humidity and the possibility of intracellular liquid crystallization, which can severely damage plants. So, how can we keep our beloved plants safe from the snow that gently coats them, often without any immediate harm, but which can cause lasting damage over time?
Protecting Plants with Buds and Leaves
Plants with buds and leaves, such as lemons and oranges, are particularly vulnerable, as their foliage can be burned by ice. These plants should be moved to a covered place immediately, such as an entrance hall, garage, or shed. Of course, they need to be in pots and not planted in the ground. If you live in a condominium or a place without space to move the plants, consider covering them instead.
Protecting Underground Plants
For underground plants, a non-woven fabric sheet (often referred to as TNT) is a great option. This material offers excellent coverage while still allowing air to circulate and light to pass through. The cost is relatively low (around 20 euros for a 1.60m x 20m roll), making it an affordable way to protect your plants. However, be cautious: the sheet can provide a larger surface area for snow to accumulate, which could weigh down branches and trunks. If heavy snowfall is expected, it may be better to avoid using the fabric and let the snow naturally settle on the branches instead.
Covering Succulents
Even succulents, known for their resistance to extreme conditions, need to be protected or moved indoors during snowfalls. Their ability to withstand frost doesn’t mean they are immune to snow and ice, so extra care is needed during these conditions.
Protecting Tree Branches
A major concern during heavy snowfalls is the weight of snow on branches, which can cause them to bend or even break. To protect your plants, it’s important to dust off snow as it settles on the branches to lighten their load. If the snow continues to fall, consider propping up the more fragile branches to prevent damage.
Post-Snow Protection
Once a snowfall ends, it’s important to protect delicate plants from double frost damage, especially when the blinding sun after a snowstorm can cause a rapid thaw. This quick temperature shift can harm plants, so they should be covered again to protect them during the thaw.
Snow can be beautiful when it covers the landscape gently, but it becomes dangerous for plants when it persists for too long and freezes. While the snow may bring joy to children, it’s important to take these precautions to ensure your plants remain safe and healthy through the winter season.
