The knotweed family is very diverse and includes various perennials, climbing plants and ground covers. All knotweeds have strong growth in common, which is why they have to be kept in check by regular pruning. In particular, the climbing knotweed (Fallopia baldschuanica), a fast-growing climbing plant, is often used for greening facades and walls. The plant is very easy to care for.

Knotweed should be cut back regularly to curb growth

Do I have to water knotweed?

Knotweed has only a low water requirement and can cover this completely itself due to its very deep roots.

When and with what can I fertilize knotweed?

Either in early spring or late fall - in preparation for winter - fertilize the knotweed with some mature compost. Further fertilization is usually not required.

How can knotweed be combated?

Knotweed grows rapidly and creates several meters - per month. Some specimens grow up to 15 meters tall in just one season! For this reason, pay attention to where the plant is growing and remove unfavorably growing shoots immediately, especially if they threaten to damage pipes, gutters or even the roof tiles. Knotweed can only be contained with strong and regular pruning.

How often and when should I prune knotweed?

Cut the knotweed down to the ground in early spring, before it sprout. In the current season, you should also eliminate unwanted outgrowths by appropriate pruning.

Remove knotweed - how does it work?

The knotweed can only be removed completely if you completely dig up the very deep - up to two meters - and branched roots. However, this tedious task is important, otherwise the plant will keep sprouting again and again. Hot water vapor will also kill the plant, but also any other growth in the immediate vicinity.

Knotweed has yellow leaves - what to do?

If your knotweed gets yellow leaves, this is probably due to a planter that is too small. Basically, knotweed needs more space for its roots the bigger it gets - the plant has both strong and deep roots and is actually not suitable for growing in a bucket.

Properly care for knotweed in the bucket

If you still want to cultivate the knotweed in a bucket: choose a planter that is as large and deep as possible. You also limit the height of the plant and the number of side shoots. You also need to water and fertilize regularly.

Is knotweed hardy?

Knotweed is considered absolutely hardy. Winter protection by means of brushwood or leaves in the root area is only necessary in extremely cold weather.

tips and tricks

Knotweed loves moist soil. Prevent evaporation in the root area by mulching the plant. Finely chopped wood or bark mulch, for example, is very suitable.

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Herbs