4. Keep your lawn well-fed with quality weed & feed or fertilizer-only products, such as the Pennington UltraGreen line of lawn fertilizers.
Broadleaf annual (responsible for hay fever) with shallow, fibrous roots.
How it Spreads:
Keeping your lawn grass healthy and competitive provides the best defense against lawn weed invasions. Follow these four steps to a healthier, stronger lawn:
Yarrow can be removed by hand, taking care that all of the root is removed. Regular mowing will help prevent and remove seed head to prevent the weed spreading. Maintain good turf vigour with a balanced feed program.
Slender speedwell can be a difficult weed using a selective herbicide and more than one application will be required, as it can be resistant to many products. To get the best results from weed killers, treat the weeds when growth is strong, usually in May and June. More Info…
Lawn Weed Identification The first step in dealing with any weed or weeds it to correctly identify them. This is why we have put together this handy chart to help…
Cats Ear Hypochaeris radicata
Cats Ear is a perennial weed that is common on roadsides, grassy areas and managed turf. It forms as a flat, basal rosette and can withstand a typical mowing regime. If left to grow it reach over 50cm in height. The dandelion ‘like’ flowers are produced in clusters on long stalks. The leaves are hairy and have irregular lobes that resemble a ‘cats ear’. Cats ear will grow on most soil types but prefers free draining sandy soils.
Selfheal Prunella vulgaris
Selfheal is a low growing perennial weed that is frequently found on roadside verges, grassland, golf courses and garden lawns. It produces clusters of blue / purple flowers that can be seen during the summer months. As its name suggests Selfheal has various medicinal properties and is used to treat bleeding, boils and sore throats. It will grow in most types of soil, but is frequently found on dry undernourished sites.
Hand weeding is the preferred method of removing greater plantain. A small pocket knife of daisy grubber can be used to remove this weed. Ideally remove them when they are still small, to minimise the damage to the turf.
The dandelion is a very common weed, easily recognised by its bright yellow flowers. The flowers eventually turn to a seed head producing thousands of airborne seed often called ‘clocks’. This perennial weed anchors itself to the ground with a deep taproot.
A selective herbicide can be used. However, yarrow is one of the most difficult weeds to control with as it is quite resistant to chemicals. More than one application will be required ans even then success may be limited. More Info…
Read the instructions on the label of your herbicide bottle to determine how to apply it properly. You will usually spray diluted MSMA herbicide over your entire lawn. For instance, the instructions may tell you to mix 1.5 ounces (45 milliliters) of chemical into 5 gallons (20 liters) of water to treat 1000 square feet (92.9 square meters) of lawn.
Again, the best defense is a good offense. Regular overseeding of your lawn will encourage a dense root system which will not provide space for Quackgrass to grow. Unfortunately, there are no organic products that are effective at eradicating Quackgrass. If the area affected is small, digging it up is a good option but be sure to get all of the roots. Frequent mowing is also an effective way to control this as mowing prevents Quackgrass from making seeds for the future. Be sure to keep the mowers blades set to a height of 3 inches. Another option to prevent Quackgrass from germinating is to apply Corn Meal Gluten in early spring as this acts as a pre-emergent herbicide. Please note that since corn meal gluten is a pre-emergent, you cannot overseed your lawn until the fall if you use corn meal gluten in spring. A further alternative is to pour boiling water on Quackgrass as boiling water kills any and all plants. If you use boiling water you will need to re-seed the affected areas.
Repeat the treatment several times during the growing season. Eco-Lawn may need four to eight applications before the nutsedge dies off completely.
Black Medic also called Yellow Trefoil is an annual species so it only lives one year but it makes a lot of seeds that can remain viable for several years. It’s seeds germinate in the spring and are capable of establishing in drought-prone or disturbed soils. Black medic is a legume, meaning that it has the capabilities to fix its own nitrogen; thus, allowing it to out compete turf in nutrient-poor soils as well. These factors, in combination with its ability to tolerate low mowing heights, make black medic a common weed in lawns.
This method is most effective at the start of the growing season, when nutsedge is just barely beginning to germinate and sprout. Start by watering the lawn. You do not need to soak it, but the lawn should be evenly moist down to the soil.
Crabgrass is a warm season annual weed that invades lawns that are thin, weak and undernourished. It germinates from seed in late spring once soil temperatures have reached 50 F (10C). During the summer it develops into a ground-hugging weed that spreads over the surrounding grass. In late summer it produces hundreds of seeds that will sprout the following year. Crabgrass seeds can remain in the soil for many years and sprout when the soil is disturbed.
Non-organic Solution: If you are using a broadleafed herbicide, use one where the active ingredient is 2-4-D. The ideal time to use herbicides on Dandelions is in early fall when the leaves are transferring nutrients down to the roots. Herbicide applied in early fall will be absorbed by the leaves and passed on down to the roots.