We had some turf laid in the garden of our new build about 6 months ago.
Most of it has taken well. However, for about a 3 feet in width along
the length of a north facing wall that we border, the grass is very
thin. When its cut, there is quite a bit of mud, and the grass that is
there is patchy. I would like to sow some additional seed to try and
bolset the turf. What type of grass seed should I go for, and any tips
on sowing ?? (when to do it, quantities, watering etc etc)

"NC" <me [at] home.com> wrote in message news:q6ydnZ93mchTDgPZRVnysw [at] bt.com...
> We had some turf laid in the garden of our new build about 6 months ago.
> Most of it has taken well. However, for about a 3 feet in width along the
> length of a north facing wall that we border, the grass is very thin. When
> its cut, there is quite a bit of mud, and the grass that is there is
> patchy. I would like to sow some additional seed to try and bolset the
> turf. What type of grass seed should I go for, and any tips on sowing ??
> (when to do it, quantities, watering etc etc)

Sounds like a drainage problem or lack of enough air.

Lift some off and check the soil underneath.
If it's substantially different from the healthy side of the garden then
suspect contamination.

I have heard of leeching from the mortar etc causing problems.

Try a small 1m square patch test and remove the entire section down to
around 400mm, replace with quality topsoil and reseed.
If successful continue along the length of the wall. If unsuccessful have
the soil sampled.

Who? wrote:
> "NC" <me [at] home.com> wrote in message news:q6ydnZ93mchTDgPZRVnysw [at] bt.com...
> > We had some turf laid in the garden of our new build about 6 months ago.
> > Most of it has taken well. However, for about a 3 feet in width along the
> > length of a north facing wall that we border, the grass is very thin. When
> > its cut, there is quite a bit of mud, and the grass that is there is
> > patchy. I would like to sow some additional seed to try and bolset the
> > turf. What type of grass seed should I go for, and any tips on sowing ??
> > (when to do it, quantities, watering etc etc)
>
> Sounds like a drainage problem or lack of enough air.
[...]

Or simply the effect of shade, perhaps. The garden centre or DIY shed
will have grass seed blends designed for shade, and there should be
good instructions on the packet.

--
Mike.