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weed and seed lawn fertilizer

Many fertilizers also have built-in herbicides or weed preventatives. Some products are better at killing certain types of weeds and pests than others. In general, most weed and feed target common types of broadleaf weeds including plantain, chickweed, creeping charlie, dandelions, and clover.

The good news is that if your lawn looks a bit drab and weedy, you can bring it back to life by using “weed and feed” fertilizers and herbicides. Designed to introduce essential nutrients into the ground that accelerate the growth of your grass, these products help you maintain thick and healthy turf, while minimizing pesky lawn weeds.

Keeping your lawn looking lush and green means that you need to weed frequently and apply fertilizer at the right times of the year. Altogether, it can be an energy- and time-consuming exercise, especially if you have a large yard. Although you may be able to dig up a clump of crabgrass or dandelion by hand on occasion, it’s not plausible to hand-weed or fertilize an entire lawn regularly.

Targeting Weeds

Weed preventers, or preemergent weed killers, block weed seeds that are already in the soil, like crabgrass, poa annua, chickweed, and henbit, from germinating. Identify the type of weeds that are infesting your lawn and then make sure you choose a product that’s made to take care of it.

Ahead, read our guide to understanding weed-and-feed products, as well as the details on our top-favorite picks among the best weed-and-feed options available.

There are at least 11 states that ban phosphorus fertilizer use or sale. Luckily, many lawn weed and feed products available have adapted to this and have removed phosphorus from the product. Don’t worry—the weed and feed will still green up and thicken the grass without the additional phosphorus.

Granular weed and feed covers more area, often 5,000 square feet or more, and are available in 18-lb bags and larger. Granular versions offer a better value for your money, but you do need to water your lawn after application for it to penetrate the grass.

If the weather turns very hot, then the garden grass stops growing and will not use any feed. In addition to this, the lawn will start to get ‘stressed’ during prolonged dry spells, making them more susceptible to damage by lawn fertilisers. This will result in you having to take extra care of your garden lawn from that point on.

The best lawn feed (or fertiliser) to use is one that provides both protection from weeds while systematically feeding your lawn. Ideally, lawn feed should be applied between April and September with Miracle-Gro EverGreen Complete 4 in 1 providing year-round feed when applied no more than twice a year.

Whichever product you are using, always carefully read the label before use and apply according to the instructions.

Spring and summer lawn feeding

Once the weeds and moss are under control later in the spring, move over to just a lawn feed to keep the grass looking thick and green. Liquid lawn feeds via a hose end feeder are ideal for using in late spring into summer as they water the lawn as well in dry periods.

Feeding in autumn helps encourage strong root growth, so your lawn will recover quickly from a harsh winter and put on lush green growth in spring. Autumn feeding is actually the most important feed and integral part of lawn care!

Additionally, some have moss control added for any moss present. It’s important to feed with a specific autumn lawn food such as Miracle-Gro EverGreen Autumn Lawn Care, to get the grass ready for the colder, wetter weather in winter and get the lawn ready for spring. Autumn lawn feeds will be low in nitrogen, as we don’t want to encourage any top growth, which can be soft and easily burnt by frost.

This photograph on the right shows the difference feeding your lawn can make. On the left section the lawn has been fed with a granular lawn food, on the right section nothing extra has been applied. As you can see, the fed section of lawn is much greener and healthier looking.

The professionals don’t use combined ‘weed and feed’ fertiliser products containing pesticides or weed killers.

They use a quality grass fertiliser and a separate weed killer or pesticide. At Lawnsmith we feel the same way so all Lawnsmith® Fertiliser is free of harmful pesticides and unless you are using our WINTER GREEN High Iron Lawn Feed you’ll get no staining of hard surfaces as is the case with most feed and weed. Liquid weed killers can then be used which are much more effective and safe once dry: