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GRASS?

we have two weeks ago reseeded our existing thin and sparse lawn, how long before I can mow it>
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we have two weeks ago reseeded our existing thin and sparse lawn, how long before I can mow it>
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I would let it get to around 4" / 10cm before even thinking of cutting it. You should take no more than a third of the overall height off at any one time. You can lower the cut over a period of weeks. Give it a chance to get established and leave your 'normal' height cut a little longer this year and certainly if we have a drought this will also help it.