Japanese knotweed as a food crop
In its East Asian homeland, knotweed has been used as a vegetable for many centuries, similar to our native rhubarb, grown and processed. In fact, the taste is similar to that of rhubarb, and the methods of preparation are the same. The young shoots of the Japanese knotweed taste good in both savory and sweet dishes, such as compote, crumbles or on fruit cakes.
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Why Japanese knotweed is so healthy
The Japanese knotweed contains the antioxidant Reservatrol, a plant substance that is also found in blue grapes (and thus in red wine) and, above all, has a heart-protective effect. In addition, this substance is said to have other health effects, some of which have been demonstrated in animal experiments under laboratory conditions. Reservatrol is not only supposed to protect the blood vessels, but also to strengthen the immune system and kill some cancer cells.
Collect and harvest Japanese knotweed
The young shoots can be harvested all year round from April, but only if they are no taller than about 20 centimeters. After that, they contain too much oxalic acid, they also lignify and become inedible. When collecting, pay attention to where you cut the shoots - the Japanese knotweed was mainly strong with some Heavy metals and toxins contaminated soil spread because it absorbs them in large quantities and thus to remediate the soil can contribute.
Only grow Japanese knotweed in a pot
In the garden, the plant should only be cultivated in a pot to prevent uncontrolled spread - a tiny piece of root is enough.
Prepare Japanese knotweed
You can use Japanese knotweed as whole sticks or in small pieces Prepare cut, for example as
- Stir-fry vegetables
- Wild rhubarb
- in compote
- Chutney
- Crumble (d. H. gratinated with crumbles in the oven)
- on fruit cake
- jam
- or relish
Tips & Tricks
Please note, however, that due to the high content of oxalic acid (oxalic acid binds calcium to themselves), consumption for people Those with arthritis, gout or kidney problems as well as children should be severely restricted and pregnant women should be able to enjoy it entirely waive.