The best time to cut is in autumn
Extensive crown expansion is the most common reason to cut a walnut. A massive flow of sap that pours out of cuts causes a headache. Many hobby gardeners are familiar with the problem of the popular one Ball maple.
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A bleeding walnut will lose its horror if you prune it in the fall. From the beginning of October to mid-November, the sap flow sinks to its annual low, so that no noteworthy rivulets of open wooden bodies are to be feared.
Prune walnut every 5 to 10 years
If you cannot give your walnut unlimited space, you should regularly regulate the extent of the crown. By cutting the branches at intervals of 5 to 10 years, you avoid radical interventions in growth, such as a rejuvenating cut. How to cut properly:
- At the beginning, remove dead, frozen and unfavorably positioned branches
- Thin shoots on Astring cut off
- Cut back shoots from 5 cm in diameter to 10 to 20 cm long cones
- Overhanging, too long and broom-like branches lead off to an internal side branch
- Remove steeply upward-facing competitors to the central or guide branch
You can alleviate the disadvantages of larger cuts by pruning the relevant branches back on cones. This special cut prevents it from drying back into the deep wood and promotes new growth. Young shoots sprout in all directions from the cones. Pick one or two promising branches. Remove excess shoots together with the dried cone remains in the next autumn or the following autumn.
Remove wild shoots promptly
The long time intervals of up to 10 years do not imply that a walnut tree will not be pruned at all in the meantime. The focus is on refined varieties, which are composed of black walnut as a wild base and a weaker growing crown.
The rootstock demonstrates its vigorous growth in the form of wild shoots. These sprout directly from the rhizome or trunk. At a rapid pace of up to 50 centimeters per year, the wildlings strive to overgrow the noble walnut crown. This brazen drive is stopped by removing a game drive promptly.
Cut the trunk shoots vertically just before the bark. Tear off shoots from the root disc. This procedure has the advantage that you remove most of the tissue and effectively prevent renewed growth.
Tips
Before you get one Competitive instinct cut away at the central drive, weigh A more promising option. Steep drives in a favorable position within the crown can turn you into valuable ones Fruitwood transform. For this purpose, tie the steep drive down at an angle of about 45 °. The growth calms down and your walnut finds leisure to form blossoms and nuts at this point.
