A quality tree is the result of years of dedicated care. Unloading and planting are the final, yet most critical, steps in this process. An error at this stage can nullify your investment and compromise the tree's health. Therefore, a professional approach isn't a luxury; it's a necessity. This guide provides the expertise for a successful start for the tree in its new location.

The right timing: work with the seasons

The tree's condition dictates its success. Unloading and planting of trees with a wire ball (root ball) must occur during winter dormancy. This period generally runs from November (after leaf fall) to late March (before bud break).

Why is timing so crucial? As a tree becomes active in spring, the cambium (the growth layer under the bark) swells due to the rising sap flow. This makes the tissue highly vulnerable. Pressure from a lifting strap can then lead to irreversible damage to the tree, with all the associated consequences.

Preparation: half the battle

Good preparation prevents problems on site.

Ensure a crane is on site for unloading:
Our trucks for transporting large trees are typically not equipped with their own cranes. As the customer, you are responsible for arranging a suitable crane for both unloading and further moving the tree around the site. Coordinate the required capacity with the weight of the tree.

Check the location:
Is the unloading area easily accessible for the truck and the arranged crane? Is there enough space to maneuver safely?

Prepare the planting pit in advance, but time it correctly:
The fewer times a tree is handled, the better. Therefore, ensure the planting pit is already dug so the tree can move directly from the truck to its final spot in one motion. However, coordinate the digging time carefully with the weather and soil type. In wet periods, dig the hole as close as possible to delivery to prevent it from filling with water. This minimizes issues on site. A slight deformation of the root ball due to lifting is normal and won't significantly impact regrowth.

Check the lifting equipment:
Ensure all lifting equipment is certified and correctly dimensioned. Use wide, flat lifting straps to distribute pressure on the trunk and root ball and prevent damage.

Unloading methods: technique and safety

Safety comes first. Work according to a clear plan, keep bystanders at a distance, and never walk under a suspended load. The weight of a root ball is easily underestimated; leverage requires expert knowledge.

Unloading with a sling 

This method is intended for trees up to a trunk circumference of 45-50 cm. 

Place a wide lifting strap, with a protective layer (jute, rubber), low around the trunk. Attach a chain around the root ball. Lift the tree in a controlled manner, maintaining a maximum lifting angle of 60 degrees to limit pressure on the trunk. Always check in advance that the lifting material is inspected and suitable.

 
 
Unloading with a lifting strap under the root ball 

This is the professional standard for all larger and more vulnerable trees. The entire weight is supported by the root ball, completely relieving the trunk and cambium.

Place a wide lifting strap centrally under the root ball so that it hangs in balance. A second, loose strop around the trunk serves only to guide and stabilize the tree, not to lift it. Lift the tree slowly, bring it horizontally to the planting pit, and lower it in a controlled manner. This method provides optimal protection for the tree.

 

 

From unloading to successful planting

After unloading, the real work begins: giving the tree a good start.

  • Inspect the tree: Immediately after unloading, check the tree for any transport damage.
  • Position correctly: Place the tree in the planting pit. The top of the root ball should be level with, or just slightly above, the surrounding grade. Never plant a tree too deep.
  • Wire basket and burlap: Leave the jute and the (biodegradable) wire basket around the root ball. They provide support and will decompose naturally. Only cut the top ring of the basket and the tension wires loose once the tree is in place to prevent girdling.
  • Anchoring: Immediately after planting, install 2 or 3 tree stakes. Connect them with tree ties in an 8-shaped loop, so the trunk doesn't rub. The anchoring prevents movement of the root ball, allowing the fine feeder roots to develop undisturbed.
  • Aftercare is crucial: Water generously immediately after planting. A tree with a large root ball needs a lot of water to establish. Continue to monitor the water supply closely during the first growing season.

Please note: As mentioned, as the customer, you are at all times responsible for a safe unloading procedure, a suitable crane, and certified lifting equipment.