Lawn not growing in patches

Hi

Is anyone able to explain possible reasons why my lawn is growing like this. 4 months ago it was dug up and re-seeded. I prepped the soil evening throughout but did just use seed from a homebase. It originally all grew really well all thick and lush green but after the 2nd cut only certain patches continued to grow. You can see this in the photo uploads. Thanks for any recommendations.

 

Welcome to Gardeners Corner Joe. Could we have a close up picture of one of the bad patches please?

 

Thanks for your reply, I'm away for rest of week. Will get a photo once home on saturday.

 

Okay, thanks Joe.

 

here is a photo of a bad bit. Yes i did feed it but all this seemed to do was help everything but the bad bits.

 

And closer

 

I think John and I are working towards a diagnosis here, so bear with our questions please Joe. What type of soil do you have?

 

When i seeded it i put down about 7 inches of top soil. Under that is quite clayey soil which i broke up and mixed with some sand

 

Thanks, there's nothing wrong with the way you've prepared the soil. I don't usually recommend feeding a lawn in it's first year as there are enough nutrients in the soil to help it establish. Feeding can often make it outgrow it's strength.

But I don't think this is the problem with your lawn. I suspect it is either seed failure or more likely disease. Loathe as I am to ask can you check to see if the grass shoots have any red colouring in them please?

 

No i cant see any red colouring on the shoots. If this was un even application of food what would be the best thing to do. Just leave it a few months?

 

I think it's too large an area to be uneven food application and you would normally see a pattern occur if this was the case, but your lawn seems to have random patching. It could be chafer grub or leatherjacket damage. It's worth digging a patch up here and there to see if there are any grubs underneath, or you could water part of the lawn and put a plastic sheet down overnight, it doesn't need to cover the whole area. This often brings them to the surface and you will find them on the plastic sheet the following morning. It will also be something to eliminate if the sheet is clear of them.