- North-West London
- 14 May 2009
Agree with Boggy - our neighbours have just laid some new turf and despite heavy watering (and heavy rain ) it is browning quickly. Wait until the autumn and lay it then. (I don't know why this paragraph suddenly decided to be in italic, but I can't change it back!).
Weeds that are coming back will be of two types:-
- the annual seeds that have taken the opportunity to germinate once they ahve seen the light of day. You won't need to worry too much about those.
- perennial weeds, such as dandelions, bindweed and coarse grasses. These will definitely come up through your new lawn and be a real menace. The best way to get rid of them is to allow them tomake some new growth so that there is plenty of leaf area, then spray with a glyphosate based weedkiller, such as Tumbleweed. This is a bit more expensive than some, but has two great advantages. Firstly, it is absorbed though the leaves and taken by the plant down into the roots, so killes the whole plant. Secondly, it is neutralised on contact with the soil, so doesn't cause any problems with planting afterwards. It takes longer to show an effect than other weeds, but this alows it to trick the plant into taking it down to the roots before killing the lot. Ocassionally you might have to give a second application to kill things like bindweed or brambles.
Once you have really killed the weeds you should find that the soil breaks up much more easily, so that you can then firm it evenly, to prevent lumps later. If it is heavy, think about improving this layer, rather than simply slapping the topsoil and turf on top. Lawns need good preparation if they are ever to do well.
A good book is "The Lawn Expert" by Dr D G Hessayon.