Garden Life
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A special shine covers lawns in March: This fresh green at the end of the winter heralds the arrival of spring as the first green grass pushes its way through at last. As well as being a real eye-catcher at this time, in many places grass also provides an annual guessing game: What is the best thing to do for my lawn now in order to give it a real boost?
People often forget to add lime to their lawns. But the growth of lawn grasses is often restricted if the soil is too acidic, as is the case for fescue grass. The ideal pH for lawns is slightly acidic - between 5.5 and 6.5. Around 50 to 60 grammes of agricultural lime per square metre per year is enough to maintain lime levels. Sandy soils usually need more lime more frequently than clay soils which binds lime better. If you are able to determine the pH value of your lawn yourself with a soil probe, add 60 grammes of lime per square metre to raise the pH value by 0.5. 

Example: You measure a pH of 4 and want to increase it to 6; you need 4 x 60 grammes of lime per square metre - around 240 grammes. A 25 kg sack is therefore enough for a good 100 square metres of lawn.