Renovated my lawn in the late Spring. Included levelling out some significant dips with topsoil.
5t of Top Soil and 2t of compost was spread over the entire lawn. Reseeded and fertilised.
Now we’re at the tail end of Autumn, the infilled parts are significantly darker than the rest.
An uneducated guess would be that the top soil was iron-rich and this is the result? If so, how long will it take for the colour to even out?
Here you go https://www.https://lawncarenation.com/
Are you sure they are the same kind of grass?
Adi said:
Are you sure they are the same kind of grass?
I can only assume so, yes. The entire lawn was overseeded. This was after scalping, aerating, scarifying and levelling. If it was a case of only the new grass has taken to the levelled areas, I would also expect to see ‘streaks’ of the new grass across the lawn. Which isn’t the case.
@Emerson
The seed used is very likely to have been a mix of many different grasses, could have been mixed very poorly and created what you’re seeing. You need to actually examine the grass close up to tell if it’s the same or different. If it’s the same, then it’s iron (more iron = darker grass)
@Clarke
The grass looks the same to me, but I’m not sure if I have the eye for it. If you check the other comment replies, I’ve got some close up photos of each grass type.
@Clarke
Identifying grass types can be very difficult if you don’t have the seed heads for comparison. When a lot of grass types first emerge they can all look similar. An agronomist that specializes in grass species through your local agricultural extension service would be your best bet.
Because your entire lawn is POA annua
Valen said:
Because your entire lawn is POA annua
I think you’re right unfortunately. Thank you.
Valen said:
Because your entire lawn is POA annua
I think you’re right unfortunately. Thank you.
It’s a bitch. I’ve had many patches that I have been digging out for the last few years. The only way to kill it is to dig it out or round up and reseed when it is actively growing.
I don’t know how long you plan to stay at this property but if it’s a long-term goal you need to kill the whole lawn in spring or fall when it comes out of dormancy.
Easier said than done, especially if you have a few pets because they won’t be able to go on the lawn for a few weeks.
@Valen
Nuking the lawn is possible but… the dog. The mud he dragged in when we did the renovation in Spring was awful. Not willing to go through with that again. We’ll have to live with it.
Emerson said:
@Valen
Nuking the lawn is possible but… the dog. The mud he dragged in when we did the renovation in Spring was awful. Not willing to go through with that again. We’ll have to live with it.
At this point, I would just lean into having it spread and just have a totally PoA lawn. The bright side is it will green up earlier and stay green later in the season but it will burn up during summer.
Dethatching will actually help it spread.
Emerson said:
@Valen
Nuking the lawn is possible but… the dog. The mud he dragged in when we did the renovation in Spring was awful. Not willing to go through with that again. We’ll have to live with it.
@Blake
Your comment contained false/disproven, illegal, or dangerous information.
@Valen
Nuking will not be effective. The solution is to use a pre-emergent treatment for several years, applied in the spring and early fall, in a timely manner. This approach helps germinate the weed seed and prevent it from rooting, thus killing the seed.
Since millions of seeds are already in the soil, nuking will only stop the existing Poa grass from producing more seeds.
@Riley
The best defense against poa annua is maintaining root competition/density through annual aeration and seeding as well as considering environmental factors. It’s not a competitive grass. It does not do well in areas that your turf is thriving. It does well in areas that your turf struggles. Over saturation, foot traffic, pet traffic/nitrogen toxicity from pet urine etc
Pre emergents are problematic if you’re seeding cool season grasses as poa annua and poa trivialis germinate the same time of year as the cool season grass you may be seeding.
That being said, your problem is not poa annua. It is poa trivialis. A different monster.
@Valen
Maybe this will be helpful https://www.https://lawncarenation.com/
(Nuking doesn’t work)
Valen said:
Because your entire lawn is POA annua
I’m thinking Poa Trivialis rather than annua.
Valen said:
Because your entire lawn is POA annua
I’m thinking Poa Trivialis rather than annua.
Agreed, there’s no low seed heads. OP planted a big ole bag of poa trivialis.
Valen said:
Because your entire lawn is POA annua
Sure you mean annua not trivialis?
