2015 Lawn thread

Author
Discussion

blackscooby

301 posts

280 months

Tuesday 30th June 2015
quotequote all
Poorly grass- need help.

It was a new build in 2013 with a newly turfed lawn.
It looks fine from a distance, but terrible up close.

It's regularly cut at a high blade height. Never scalped.
Last picture shows the brown areas I have issues with.

Any advise greatly received.

Thanks






Foppo

2,344 posts

124 months

Tuesday 30th June 2015
quotequote all
I would cut it shorter and aerate for a start.

blackscooby

301 posts

280 months

Tuesday 30th June 2015
quotequote all
Foppo said:
I would cut it shorter and aerate for a start.
I wonder about aeration, but hadn't thought about shorter.

Philemon

1,623 posts

196 months

Tuesday 30th June 2015
quotequote all
Shorter, no. Aeration yes and there seems to be quite a thatch later, so scarify mid- end-September.

Dr Mike Oxgreen

4,119 posts

165 months

Tuesday 30th June 2015
quotequote all
Difficult to tell from that last picture, but could it be a touch of red thread?

R8VXF

6,788 posts

115 months

Tuesday 30th June 2015
quotequote all
Dr Mike Oxgreen said:
Difficult to tell from that last picture, but could it be a touch of red thread?
I thought it might be as well. OP, are you watering the lawn in the evening? If so try and do it in the morning for an hour every 3 days instead.

jagnet

4,111 posts

202 months

Tuesday 30th June 2015
quotequote all
yes looks like red thread to me.

I'd try to get rid of it with cultural methods first before turning to the fungicides. Water deeply and infrequently rather than little and often, and water in the morning rather than at night as mentioned. Remove all the grass clippings. On an established lawn you only need water when the grass loses its 'springiness'.

Red thread can be a sign of nitrogen deficiency, and whilst that does make it more likely, even well fertilised lawns can get it. If you haven't fed the lawn recently then it's worth doing so if that isn't going to over fertilise it. You want good vigorous growth to help get rid of the affected grass tips.

I'd also cut a little lower for a bit until the grass has recovered, but don't drop the cut height all in one go.

This is the ideal time of year for the Laetisaria fuciformis fungus, with the warm weather and humid conditions increasing periods of leaf wetness. Evening watering further exacerbates the problem.

jagnet

4,111 posts

202 months

Tuesday 30th June 2015
quotequote all
Well the lawn's recovered well from its verticut and topdress a week or so ago.

When I did it the weather forecast for this week was for heavy rain every day so ideal for a bit of overseeding as well - nicely predicted, met office rolleyes I'm glad that I didn't go OTT with the scarifier.

The coarser grasses are now much reduced:



I even got the Ransomes out of the shed for some striping. It must be summer cool

0000

13,812 posts

191 months

Tuesday 30th June 2015
quotequote all
CoolHands said:
Condi said:
jagnet said:
I've been very impressed with the Silverline impulse sprinkler, even more so given that it's under £10. It seems well built and is easily adjusted for distance and angle (all the way up to full circle).



You can hook them up in series to save using a multiport adapter near the tap, although you'll need very good water pressure and flow to support more than a couple.

I've found that it works even better from a height, so I plant it in a pot on the raised patio to sprinkle the lawn below.
http://www.toolstation.com/shop/p41077

£3.80 from toolstation! Working very well on my lawn, and a nice little replica of the big rain guns we use on the farm.
Damn that's cheap! I'm getting one just to play with!
£5 delivery. frown

wjwren

4,484 posts

135 months

Tuesday 30th June 2015
quotequote all
i put some nitrogen down and the lawn has greened up but few places have gone black - will they come back and green up?

Dr Mike Oxgreen

4,119 posts

165 months

Wednesday 1st July 2015
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wjwren said:
i put some nitrogen down and the lawn has greened up but few places have gone black - will they come back and green up?
You may have overdosed a bit. Water the whole lot thoroughly with a sprinkler for an hour. It'll probably recover.

Cactussed

5,292 posts

213 months

Wednesday 1st July 2015
quotequote all
Guys, some advice pls.
We've just had some work done in the back garden (new patio) and as part of this, had some new turf laid. I've watered it and its come up lovely.

Which now highlights the fact that much of the remaining lawn is just chockers full of coarse grasses and general rubbish following about 10 years of neglect by the previous owners.

As I see it, my options are to either
- take up the old stuff and either seed or turf; or
- deep scarify, topdress, overseed with nicer grass, weed, feed, rinse and repeat until I get the desired result.

The section of the back lawn I want to tackle is probably 1000sqm, hence why I am considering options as taking up, diposing of old turf, topsoiling then returfing would be MUCH £££ which don't grow on trees.

Also, we have 2 young boys so I suspect the lawn will take a battering for many years to come, so wondering if the second option might be the best route (taking longer and probably costing as much in the long run).

Any thoughts?

illmonkey

18,199 posts

198 months

Wednesday 1st July 2015
quotequote all
0000 said:
CoolHands said:
Condi said:
jagnet said:
I've been very impressed with the Silverline impulse sprinkler, even more so given that it's under £10. It seems well built and is easily adjusted for distance and angle (all the way up to full circle).



You can hook them up in series to save using a multiport adapter near the tap, although you'll need very good water pressure and flow to support more than a couple.

I've found that it works even better from a height, so I plant it in a pot on the raised patio to sprinkle the lawn below.
http://www.toolstation.com/shop/p41077

£3.80 from toolstation! Working very well on my lawn, and a nice little replica of the big rain guns we use on the farm.
Damn that's cheap! I'm getting one just to play with!
£5 delivery. frown
Whats the coverage like? It says 16m, but is it 90degrees etc? My garden is tiny, but would like to just switch something on twice a day and leave it for 30 minutes. At the moment, I have to keep moving the sprinkler, and half of it ends up on the fence.

R8VXF

6,788 posts

115 months

Wednesday 1st July 2015
quotequote all
This months lawn diary is out for those that haven't seen it: http://www.lawnsmith.co.uk/lawn-diary/july-lawn-ca...

AC43

11,486 posts

208 months

Wednesday 1st July 2015
quotequote all
Cactussed said:
Guys, some advice pls.
We've just had some work done in the back garden (new patio) and as part of this, had some new turf laid. I've watered it and its come up lovely.

Which now highlights the fact that much of the remaining lawn is just chockers full of coarse grasses and general rubbish following about 10 years of neglect by the previous owners.

As I see it, my options are to either
- take up the old stuff and either seed or turf; or
- deep scarify, topdress, overseed with nicer grass, weed, feed, rinse and repeat until I get the desired result.

The section of the back lawn I want to tackle is probably 1000sqm, hence why I am considering options as taking up, diposing of old turf, topsoiling then returfing would be MUCH £££ which don't grow on trees.

Also, we have 2 young boys so I suspect the lawn will take a battering for many years to come, so wondering if the second option might be the best route (taking longer and probably costing as much in the long run).

Any thoughts?
Loads of threads on this but FWIW this year I followed advice from here and improved by front and rear lawns by first using some Verdone to take out the weeks and iron sulphate to take out the moss/give them a feed.

On the smaller front one I also aerated using a fork and overseeded/added a bit of topsoil.

The front one looks better, TBH, but the back one shows is much improved and shows how much benefit just the Verdone and iron sulphate deliver.

PS; I also been watering both lawns 3-4 times a week which has also helped them thrive. Also, I don't cut them very short.

PPS; buy the book, The Lawn Care Expert

WinstonWolf

72,857 posts

239 months

Wednesday 1st July 2015
quotequote all
jagnet said:
Well the lawn's recovered well from its verticut and topdress a week or so ago.

When I did it the weather forecast for this week was for heavy rain every day so ideal for a bit of overseeding as well - nicely predicted, met office rolleyes I'm glad that I didn't go OTT with the scarifier.

The coarser grasses are now much reduced:



I even got the Ransomes out of the shed for some striping. It must be summer cool
What did you do to reduce the coarse grasses? I'm currently raking and then pulling them out by the root. Yes, I have back ache smile

Cactussed

5,292 posts

213 months

Wednesday 1st July 2015
quotequote all
That's not really the issue.
I've been weeding, feeding, regularly cutting, have scarified and hollow tined etc. Gets watered and the grass that's there is doing fairly well.

It's just that the grass is very coarse and broad leafed with a lot of thatch. I will obvs keep scarifying but wondering if it might be better to just blitz it in one go or continue to try making progress with what's there.

AC43

11,486 posts

208 months

Wednesday 1st July 2015
quotequote all
Cactussed said:
That's not really the issue.
I've been weeding, feeding, regularly cutting, have scarified and hollow tined etc. Gets watered and the grass that's there is doing fairly well.

It's just that the grass is very coarse and broad leafed with a lot of thatch. I will obvs keep scarifying but wondering if it might be better to just blitz it in one go or continue to try making progress with what's there.
Not sure how you can end up with a lot of thatch if you've been scarifying. But it you have, scarify more surely?

I had clumps of course grass (Yorkshire fog) in my front lawn and I pulled them out one by one. It was easy, though, as it was small. Then overseeded the resulting gaps

I haven't bothered doing that at the back as it's too large and it takes a battering from my kids anyway.

Cactussed

5,292 posts

213 months

Wednesday 1st July 2015
quotequote all
Actually, I've not really deep scarified the back. I've done the front to death and its come up a treat, so perhaps I'll invest a bit more effort in the back lawn and see how it comes out.

another question.

I've got a few areas where old trees were taken down (I suspect) and the lawn has depressions. Best way of levelling them? they're sizeable (perhaps 20sqm) and need to come up maybe 4-6 inches.

Can I just chuck some topsoil over it and then seed and water? Will the new grass grow into the existing stuff underneath? Again, want to avoid lifting turf on large areas...

jagnet

4,111 posts

202 months

Wednesday 1st July 2015
quotequote all
Cactussed said:
- deep scarify, topdress, overseed with nicer grass, weed, feed, rinse and repeat until I get the desired result.
For a 1000 m2 area that's the way I'd go with it unless you were trying to achieve croquet lawn levels of perfection. Even then, topdressing it is going to need about 16 tonnes of topdressing for a 1cm depth.

It's a slower process versus starting again, but unless the soil underneath is in dire condition it will come good.


WinstonWolf said:
What did you do to reduce the coarse grasses? I'm currently raking and then pulling them out by the root. Yes, I have back ache smile
I stressed them out as best I could by reducing watering and fertiliser without causing too much stress to the finer grasses, then verticutting with the scarifier on a high setting to get rid of much of the side growth, which impacted the coarse grasses more than the finer ones.

I did topdress and over seed but it's still a bit early to see the effects of that.

Afterwards I applied a liquid foliar feed to the lawn, which the finer grasses were able to make more use of as they hadn't had been reduced so much by verticutting.

The finer grasses now have more of an upper hand in the competition stakes, with the fresh grass seed starting to germinate to help that even more.