Fight Gundermann in the grass - may he scarify it?

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ground ivy

If the Gundermann or real Gundelrebe called, once retreated into the garden, it spreads rapidly in all directions and also takes the lawn in fog. Here he not only disturbs the well-kept look, but damages the lawn seriously if it is not removed quickly. Therefore should be reacted quickly. As a weed, the Glechoma hederacea is very persistent and resist many a control method. But below you will learn which effective strategies and preventive measures are the solution to the weed problem.


If you have not intentionally planted this species of moth in the garden as a ground cover, you should know what plant it is before each weed control on the lawn to take the right action. The Gundermann recognize the following appearance:
  • Frequently purple underflow stems and leaf undersides
  • Over the ground running sprouts axons, which have no flowers
  • Flowers only on the ascending stems
  • Blue-purple flowers are up to about 1.5 inches tall
  • Ground runners have some knots that root
  • Achieved laterally a length of over two meters
  • Possible height growth of about 30 centimeters
  • Kidney shaped to roundish heart-shaped leaves with a maximum length of four centimeters
  • Blunt or tapered leaves
  • Nutty fruits with maturity between June and August
  • Flowering time: between April and July
  • Special feature: when rubbing a leaf, an oily film and spicy-sour smell


Part of the real Gundelrebe is planted as a groundcover, but often it enters the gardens by wild propagation. The seeds are mainly carried by the wind and birds in the neighborhood. But even under shoes, they stick and get so especially on the lawn. Preference is given in particular to bright, nitrogen-containing, moist lawns.
As they spread quickly and become ever stronger and wider as a result of their nodular roots, they move across lawns to the beds, to swimming pools embedded in the lawn, and they do not stop in front of terraces bordering the lawn. Removing them there is of no use, as here the origin point and all its branches must be found in the lawn. Only in this way the further growth can be stopped.

Manual combat

The pulling out of Gundermann is very tedious if it has already been rooted at various junctions and is spreading in all directions. For this reason, you should regularly check your lawn for the real Gundel vine at regular intervals. This is the only way to discover a plant early in the lawn and remove it before further shoot and seed formation.

ground ivy

hand removal
If the real Gundelrebe has just sprung, it can usually be easily pulled out of the lawn. In order to fully extract the root in this way, the soil should be wet. Significantly more elaborate is the distance by hand in already widely expelled copies. Although the hand method can work here as well, this may mean scouring the lawn a few meters in a stooping posture for rooted hubs.
The Glechoma hederacea is one of the Flachwurzlern, which is why they can be easily pulled out with a special weed cutter and root. The advantage over the hand removal is that you do not have to bend over and thus protect your back.
TIP: If you have completely pulled the plant and want to dispose of it on the compost, it is advisable to allow the roots to dry completely on a stone or similar in the direct sun. If you do not, there is a chance that the root on the compost will expel again and proliferate again.

Mechanical combat

Not necessarily more comfortable or faster, but just as effective, are some mechanical control methods with the support of various tools.
For the growth and expulsion of the Gundermann seeds requires, inter alia, light. Between densified turf he therefore has fewer chances to germinate and to be able to fully unfold as a young plant. For this reason, theoretically not be scarified - BUT compacted grass provides an optimal basis for many other weed species and harms the lawn visually and health in the last resort. Therefore, it is recommended to scarify the lawn especially where it is highly compacted. In the garden season are usually sufficient twice. Afterwards you should sprinkle new lawn seeds to fill gaps and thus achieve a natural turf density. In this way, the seed germination and growth is limited.
lawn fertilization
Real Gundel vines need a nitrogenous soil for their existence, as well as turf. If you have discovered the plant in your lawn, it is necessary to dispense with nitrogenous fertilizers. This may result in your lawn losing a rich green color, but the Gundermann will be prevented from spreading and will slowly die off. Then you can distribute a fertilizer with nitrogen on your lawn, which acts quickly. Ammonium, nitrate and urea are, for example, nitrogen forms which have a fast activity. The lawn then recovers quite quickly afterwards.
You can also fertilize your lawn with nitrogen fertilizer during nitrogen removal. This allows him to survive this low-nitrogen phase better.
weed killer
Take care when buying weed killers. Many products contain substances that promote dicotyledonous plants such as the Gundermann, even in growth. Here it is strongly advised to pay close attention to the product descriptions and, if necessary, to seek professional advice.
This applies not only to turf control, but also to the application of normal weeds in beds that connect directly to the lawn and where Glechoma hederacea is located. With a growth-promoting weed killer, there's a good chance that you will lose control and the Gundermann will quickly spread out of the bed and across the grass.

ground ivy

For the lawn, it is best to use only a special weed killer that targets dicotyledonous plants. However, you should make sure that they are not used too close to a bed where the plant acts as a groundcover. The distance should be at least one meter and avoid over-earthing, so that the weed killer does not reach areas that are too large. In addition, it should be evenly distributed along the entire ground sprouts, so as not to miss any root point. Lawn resurfacing is usually possible after two months after application.


As a preventive measure, basically nothing really helps. They can maximally reduce the chance of germination and spread.
lawn vaginal
Cut your lawn regularly and keep it constantly at a height between four and five inches. Thus already penetrated seeds receive less to no light and are prevented from germinating. The regular grass clippings also provide for a stronger blade of grass and a dense growth, so that it is harder seeds or resulting roots harder to get into the ground.
In addition, the continuous lawn cutting reduces the nitrogen content in the soil, as it absorbs the lawn after each cut to grow and therefore less available in the ground. This lacks an important soil property that the Gundermann needs to grow.
grass clippings
After each lawn cutting, remove the grass clippings completely from the surface. This will compost after a while, especially if moisture is present. So it can secrete nitrogen while lying down and increase the nitrogen content in the soil again.
lawn control
The best time to have a lawn control is when you cut the lawn. Walk over the lawn surface with your eyes open and watch for the first signs of the Gundermann. This allows you to discover the fast-growing plant and remove it already at an early stage of growth.
Scarifying the lawn is one way to fight Gundermann. But here it must be ensured that a maximum number of twice is not exceeded, so as not to create a more favorable situation for the plant. With the other methods described here, you will get effective results that will permanently make your lawn go green without a real greenhorn if you use them quickly at first sight.

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