It is not without reason that creeper knotweed (Fallopia baldschuanica) is nicknamed "architect's consolation", after all it is more suitable than almost any other climbing plant for the quick and effective greening of even very large areas. However, its growth also gets out of control just as quickly and should therefore be contained in good time.
As beautiful as the knotweed looks: If its growth is not restricted, it will spread at breakneck speed
curb growth
Basically, you could stand in the garden and watch your knotweed grow - it grows up to 30 centimeters a day and thus several meters a month. As fast as it grows, it will crowd out any other vegetation - as well as numerous other things that stand in the way of its spread. Whether roof tiles, downpipes or other pipes: knotweed simply overgrows everything. No wonder, then, that you have to keep a close eye on the growth of the plant and strictly limit it.
Cut back knotweed
This limitation begins in early spring, when you cut the entire behemoth back to just above the ground - preferably in February or March - removing all last year's shoots. Finally, the new shoots steer you in the desired direction. Be careful, however, that the new shoots do not move cheekily in undesirable directions. If in doubt, it is better to cut them off in the middle of the current season.
Remove creeper
Once established, knotweed is unfortunately very difficult to remove - actually like all knotweed, which can sprout again from even the smallest root remains. This family of plants is extremely tenacious, so it's no wonder they are at home (and often a much-vaunted pest) all over the world. Climbing knotweed can only be completely removed if you completely dig up and dispose of the roots, which can reach up to two meters deep. However, please do not put the latter in the compost, as this will only contribute to the further spread of this very robust monster.
tips
If you want to plant knotweed, it is best to attach the necessary climbing aids at a suitable distance from gutters, downpipes and similar components. A distance of at least one and a half meters is recommended.