Weeds in new turf may also be the result of low-quality grass seed. Believe it or not, some products may contain seeds for weeds in addition to the grasses they purport to have. Check the package of your grass seed carefully and ensure that it says “weed seeds 0 percent” before you apply it to your yard. This will give you the best shot at a weed-free lawn.
Growing the perfect lawn takes time and patience and is not a small financial investment. It can be extremely frustrating when just after you’ve finished reseeding your lawn, weeds in new grass begin to peek through. Using weed killer is not the best idea when you are also dealing with fledgling grass, however. You are better off dealing with weeds individually so as to protect the grass around them.
Treating Weeds in New Grass
If you decide to treat the weeds with chemicals, start by applying the substance to each weed or patch of unwanted growth rather than to the lawn as a whole. This will save as much of your lawn as possible from being overtaken by weeds.
Grass with healthy root systems that is thick and fills the space available will act as its own line of defense against invasive weeds. When you see weeds in an established lawn, remove them individually as quickly as possible. This will help lessen the spread.
Keep gardens and wooded areas clear of weeds whenever you can to prevent the spread of weeds into your newly reseeded lawn. If you notice that weeds are beginning to encroach on your grass, pull the weeds as quickly as possible.
Although this can be frustrating and we can appreciate that a quick solution will be desired, the good news about these types of weeds is that they are largely shallow rooting and should come out with the first mow at the 6-8 week mark after sowing. If they don’t, they should be easy to pull out of the turf.
However, you can get rid of these weeds just as fast as they have appeared.
The important thing to remember when new weeds appear in your newly sown lawn is not to act hastily – do not apply a Feed, Weed and Moss Killer type product of any kind on a newly sown lawn.
In short, here’s what you should do if you encounter weeds in your newly seeded lawn:
If you find that the weeds are recurring past the 6-8-week mark, you may wish to consider using a selective herbicide to spot spray your weeds. Some weed killers such as glyphosate (Roundup) kill more than just weeds, so it is important to not apply these as if they are not done precisely, they can kill your grass. Shop bought selective weed killers will recommend when to apply their product and how often and you should read the instructions thoroughly and adhere to them.
If you find that when the lawn is at least six months old and has been taken over by weeds or moss, you can use a Feed, Weed and Moss Killer product.
If weeds manage to grow bigger than just the first shoots before you catch them, use a small garden hand shovel to dig them up by the roots and pull them out that way.
Any weeds you dig or pull up should be bagged up and disposed of carefully so they don’t have chance to spread. Also, make sure you fill in any holes the weeds leave – otherwise you will be leaving inviting homes for new weeds to occupy.
With smaller weeds, grip them at the base and pull them up slowly and carefully. The aim is to remove the whole weed with its roots intact. Anything left in the soil can continue growing.
· Don’t apply weed killer too early
When you buy your grass seeds, check on the packaging to see the contents. It should be labeled “weed seeds 0%” and “other crop seeds 0%”.
Once your new grass is more established and has been mown at least twice, you can consider applying weed killer. If you are trying to kill dandelions or other broadleaf weeds, this is the correct action to take at this stage.
Traditionally, hay mulch has been used – but this is nearly always contaminated with weed seeds and should be avoided. Paper pellets are a better choice – they will help protect the new seeds, hold water well and also help prevent weeds from moving in.
To help with this well-known issue, here, we talk about killing weeds in newly seeded lawn.