What's happened to my new lawn?

Just a cheap and simple and quick green up will be fine. £2 or so.

 

I never feed my grass - that is some of it in the present avatar picture, and I refuse to call it lawn - it`s just green stuff to walk on so I can reach all the shrubs and other plants. Maybe you worry too much - why not go mad and plant some more interesting stuff - get some nice hardy easy stuff in there that`ll give you a bit of colour. Be mean to your grass and ignore it a bit

 

I don’t think there is anything wrong with your lawn. I wouldn’t feed it. I never feed mine. Leave the blades set high, mow frequently and leave the cuttings as a light mulche.

 

Does anyone know of a fertilizer with a NPK of 21-3-3, from my reading that's a ideal feed for grass but i cant find a feed with this ratio.

 

Feed it now, look at it over the weekend (yes, it works as quickly as that) and then decide if there is a difference. For me a lush green lawn is a delight.

Look Martin, a lawn liquid feed is high nitrogen and very effective. Dont get too bogged down witb ratios and brands. B & M, Poundland, etc., etc., will stock bottles sufficient for your needs

 

ICL Greenmaster Spring & Summer 12-4-6 Liquid Fertiliser | ICL Greenmaster Liquid Fertiliser | Pitchcare Shop

There you go, a nice lowish N liquid based fert. Will not be as aggressive as the one you quoted,
Or you go for a nice slow release granular feed that supplies feed for around 3 months depending on weather.
You don’t need such high N feeds, not when there’s hot, dry weather about.
You want a nice rate of growth so the plant can control its self and not produce soft growth and were it can control its moisture release in hot weather.

 

Thank you for the suggestions i like to experiment and try things, i will keep looking for what i want.

 

That looks like a sun job to me...our lawn on the back garden ended up like that in the end after the dog had half ruined it besides.