Yellow patches, poor growth, or widespread weeds indicate a need for treatment. Soil testing can confirm nutritional deficiencies that require intervention.

There are organic herbicide options that will kill grass but not flowers, including white vinegar or a dish soap solution. Commercial selective herbicides can also target grass over other plants, but read the instructions carefully to avoid damaging your garden. Herbicides that kill grass but not flowers usually include ingredients like clethodim and sethoxydim. Otherwise, your best bet will be to weed by hand.

There are several ways to kill poison ivy permanently. The trick is to keep it from coming back. Herbicides and natural remedies are highly effective for killing existing poison ivy plants. However, plant and root parts left behind can easily create new sprouts that turn into full-grown plants. The only way to permanently get rid of poison ivy is to be patient and diligent until all traces of the plant are dead and gone.

If you have a lot of tree roots in your yard or have experienced issues in the past, you should use tree root killer every six months to prevent roots from infiltrating your pipes. If you have an active invasion and aren’t seeing results, check the instructions on the bottle to see how often you can use it in a short period of mine.