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Fertilizer and Weed Killer—Does the Order Matter?

Yes, the order is crucial. It's the only way to effectively control weeds without putting unnecessary strain on the lawn.


  1. Fertilize first
    First, apply lawn fertilizer, such as a "Turbogrün" fertilizer. This will strengthen the lawn and encourage active growth.

  2. Apply weed killer after about 14 days
    You should wait until the lawn is growing well before applying the weed killer. That way, the weeds will absorb the active ingredient much more effectively.


Proper Use of the Weed Killer

  • It is best to apply it using a pressure sprayer
    → Watering is significantly less effective

  • Ideally, apply the spray in specific spots rather than treating the entire surface
    → is more sustainable and helps protect groundwater


Mowing Before and After Application

  • 3–5 days before the injection Do not mow
    → Weeds can produce sufficient foliage

  • 3–5 days after the injection Do not mow this area either
    → Active ingredients can be absorbed optimally


Ideal weather conditions

  • warm

  • dry

  • calm

  • cloudy (no strong sunlight)

After application, there should be no rain for at least 6 hours—preferably longer. Warm weather also speeds up the death of the weeds.


Follow the dosage instructions

The correct dosage is crucial for preventing damage to the lawn:

  • 10 ml of weed killer

  • per 1 liter of water

  • for 10 m² of lawn

The manufacturer's instructions should always be followed exactly.