Help with new lawn
Lenl
Posts: 1
We had turf laid several weeks ago. It has taken really well, we watered religiously the first fortnight as advised and it is rooted and was very green and lush. We waited until 3 weeks after it was laid to mow for the first time as up until that point it was still lifting a little. I cut it to 65mm which took quite a lot off but it looked great.
It's been rainy and sunny and the grass has grown really quickly, so we cut it again this Saturday just gone. There was about 9 days between cuts which was really too long because the grass had got quite long in that time. We decided to bring the height down to 55mm, which I believe was our mistake. I've since read about the two thirds rule and we definitely took off more than this. Afterwards I noticed about half the length of each blade of grass is yellow (the top is still green) and the overall colour of the lawn is more yellow green than rich green like it was before. I'm thinking we took off too much and exposed the yellowy blade bases? This is just from trying to work it out reading lots of info online. My question is how to best manage this now. Cut again at the same height (or higher??) in a few days? Leave it? Water it? First time I've had a garden and after the expense of turfing it I'm terrified of killing it! Any advice appreciated, especially if I'm wrong about the cause.
Thanks 
Posts
These issues happen from time to time, it's not a serious problem. At this time of year, grass tends to grow faster, so it's all about looking at the weather previously and making sure you slowly allow the grass to recover and then cut again.
If the grass has had no water on it for more than 1-2 weeks, then keep the blades quite high and cut at 1 week intervals. If the weather has been pretty dry, it might be best to put a sprinkler on it a day before and then cut at raised blade height. Don't try to rush and cut so often as it needs time to grow back. If it doesn't respond after a few goes, it might need a good rake over to get rid of dried thatch that might be stopping new shoots to get through.