Different rods
In the Japanese grapevine, new rods sprout every year, while some of the existing rods die. So there is a constant coming and going. The cutting helps to bring order in this jumble. You should know that:
- Japanese grapes bear on previous year's shoots
- at the same time they sprout new shoots
- these will only wear in the following year
- Rods that have already been harvested no longer bear
- they die
also read
- Japanese grapes - it has to be this care!
- Propagate Japanese grapes - it takes care of it!
- Avoid cutting young Japanese azaleas if possible
Upbringing
Japanese grapevines form long shoots that, from a certain length, bend down under their own weight and due to lack of stability. To prevent this from happening, Japanese grapes are usually raised as a trellis.
The upbringing with five native shoots is ideal. The strongest are left and the weakest cut off near the ground.
Harvested shoots
Harvested rods that will never bear again are useless from the gardener's point of view. They can be cut off near the ground after the last harvest, around late autumn. In mild regions of the country, you can easily reach for scissors at this time. In rough locations, however, it is advisable to wait until spring.
Young shoots
Young shoots are the future because they will bear the next harvest. You do the following with them in autumn:
- choose well-developed shoots
- tie to the scaffolding
- Cut off weak shoots close to the ground
- no more than 10 shoots should remain per meter
In spring, in March or April, further pruning measures are necessary:
- Shorten rods to 2-3 m
- or a little above their climbing aid
- Cut the side shoots back to 10 cm
Tips
If you bend a young rod so that it touches the ground, it will take root at the point of contact. So you can easily propagate this variety of berries.
Taper cut
Even with the best care, an older Japanese grape can show signs of exhaustion. You can give it that youthful vibrancy again by not sparing a rod when cutting. However, you will have to do without the red fruits for a year.
- rejuvenate with radical cut
- cut off all shoots close to the ground
