The first winter can be particularly challenging for newly planted trees. Because their root systems are still developing, young trees may be more vulnerable to freezing temperatures, drying winds, wildlife damage, and other seasonal stressors. Fortunately, a little preparation during the fall can go a long way toward helping your trees make it through winter and begin growing again in spring.
Why Newly Planted Trees Need Extra Protection in Winter
Established trees generally have extensive root systems that help them access water and withstand changing weather conditions. Newly planted trees, on the other hand, are still developing their roots and adjusting to their surroundings.
This makes them more susceptible to several winter-related challenges, including:
- Winter desiccation: Cold, dry winds can pull moisture from evergreen needles and foliage when frozen soil limits water uptake.
- Freeze-thaw cycles: Repeated freezing and thawing can cause soil movement, potentially lifting shallow-rooted trees and exposing their roots.
- Temperature fluctuations: Sudden changes in temperature can contribute to bark damage, particularly on young trees with thin bark.
- Wildlife damage: Deer, rabbits, and rodents may feed on tender bark, twigs, and branches when other food sources become scarce.
- Heavy snow and ice: Accumulation can bend or break vulnerable branches.
While some trees are naturally more cold-hardy than others, even hardy species can benefit from extra attention during their first winter.
How to Prepare Newly Planted Trees for Winter
Taking a few preventive steps before temperatures drop can help protect your investment and give young trees a better chance of establishing healthy growth.
Water Your Trees Before the Ground Freezes
One of the most important things you can do is make sure your trees enter winter with adequate moisture.
Continue watering newly planted trees throughout the fall when rainfall is insufficient, paying particular attention to the root zone. Deep, occasional watering generally encourages better root development than frequent, shallow watering.
However, avoid keeping the soil constantly saturated. Overwatering can deprive roots of oxygen and contribute to root problems.
Evergreens, including pine, spruce, and arborvitae, may particularly benefit from adequate fall watering because they continue losing moisture through their foliage during winter.
Apply Mulch Around the Base
A layer of organic mulch helps insulate the soil, moderate temperature fluctuations, and retain moisture.
For most young trees:
- Apply approximately 2–3 inches of wood chips, shredded bark, or another suitable organic mulch.
- Spread the mulch over the root zone, extending outward rather than piling it upward.
- Leave a few inches of open space around the trunk to prevent excess moisture buildup and bark deterioration.
Avoid creating a “mulch volcano” against the trunk. This common mistake can encourage decay and create favorable conditions for pests.
Protect Young Trees From Wildlife
Winter can be especially hard on young trees when hungry wildlife begins searching for food.
Rabbits and rodents may chew bark near the base, while deer can browse tender branches or damage trunks through rubbing.
Depending on your property and local wildlife activity, consider using supplies such as:
- Tree shelters and tree protectors to create a physical barrier around vulnerable trunks.
- Spiral tree guards to help protect bark from smaller animals.
- Wire mesh fencing or cages to prevent browsing and chewing.
Choose protection appropriate for the tree and expected wildlife. Guards should allow room for trunk growth, and shelters or wraps should be installed and maintained according to product guidance. Inspect them periodically and remove or adjust them when they’re no longer needed.
Reduce Exposure to Wind, Snow, and Temperature Changes
Young evergreens in exposed locations may benefit from temporary wind barriers that reduce drying winds without restricting airflow.
For thin-barked deciduous trees, appropriately installed, breathable tree wraps may help reduce winter sunscald in climates with significant temperature fluctuations. Apply wraps only when appropriate for the species and remove seasonal wrapping in spring.
If heavy snow accumulates on branches, gently brush away loose snow when it can be done safely. Avoid shaking frozen branches or attempting to remove ice, which can cause additional damage.
As winter ends, inspect your trees for damaged bark, broken branches, exposed roots, or signs of wildlife activity. Adjust protective materials as needed and resume watering based on spring conditions.
Remember, the right approach depends on your tree species, local climate, soil conditions, and planting location.
Give Your Newly Planted Trees a Strong Start
Protecting young trees through their first winter starts with understanding their needs and preparing before harsh weather arrives.
At Cold Stream Farm, we offer a wide selection of bare-root trees, shrubs, and evergreens, along with planting supplies to help you protect young plants as they establish. Whether you’re preparing a few backyard trees or planning a larger planting project, explore our selection and contact our team with any questions about our trees, shrubs, or planting supplies.
