Quick Answer
When harvesting bark for cordage or natural fibers, you should consider tree health to ensure the bark can be safely and sustainably removed without harming the tree. Unhealthy or stressed trees may not be suitable for bark harvesting, as it can further weaken the tree. Consider the tree's overall condition before harvesting.
Evaluating Tree Health
When considering bark harvesting, evaluate the tree’s overall health and condition. Inspect the tree for signs of disease, pests, or physical damage. Look for any dead or dying branches, cracks in the trunk, or other indicators of stress. Healthy trees typically have a well-distributed canopy, a sturdy trunk, and no signs of decay.
Selecting Trees for Harvesting
Choose trees that are at least 5-10 years old and have a diameter of 3-6 inches (7.5-15 cm). Trees with a larger diameter will generally have more bark and be more suitable for harvesting. Consider species with a high bark-to-wood ratio, such as willow, birch, or cedar. These species typically have a more robust bark that can be harvested without harming the tree.
Harvesting Techniques
When harvesting bark, use a technique called “coppicing.” This involves cutting the tree at a 45-degree angle, about 6-12 inches (15-30 cm) above the ground. This will encourage the tree to grow new shoots from the base, while minimizing damage to the remaining trunk and roots. Use a sharp, clean cut and avoid damaging the cambium layer, which is the thin layer of tissue just beneath the bark. This will help the tree heal quickly and minimize the risk of disease or pests.
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