What is the tall grass growing in my lawn?

One of the possible explanations for the tall grass growing in your lawn could be nutsedge. This is a common perennial weed that tends to thrive in moist areas of lawns and can quickly spread during warm weather. Despite its appearance as a grassy weed, nutsedge actually belongs to the sedge family.

Nutsedge is often referred to as nutgrass due to its underground tubers, also known as nutlets, which serve as a means of reproduction. These nutlets can be quite stubborn and challenging to eliminate once they take hold in your lawn. They can survive even the harshest conditions, such as drought or extreme temperatures, making nutsedge a persistent and frustrating weed to deal with.

Identifying nutsedge can be helpful in effectively managing and controlling its growth. It typically stands taller than the surrounding grass, with stems that are triangular in shape rather than round. The leaves of nutsedge are also unique, with a glossy and waxy appearance that sets them apart from regular grass blades. Additionally, nutsedge often develops clusters of small, brown seedheads that can easily be mistaken for grass seed heads at first glance.

Now that we’ve identified nutsedge as the tall grass growing in your lawn, let’s explore some strategies for managing and controlling its growth.

1. Prevention: The best way to deal with nutsedge is to prevent it from establishing in the first place. Proper lawn maintenance practices such as regular mowing, adequate watering, and appropriate fertilization can help create a healthy and dense lawn that is less susceptible to weed invasion.

2. Cultural Control: If nutsedge has already invaded your lawn, cultural control methods can help weaken its growth. Regularly mowing your lawn at the recommended height for your grass type can prevent nutsedge from reaching its full height and producing seedheads. Additionally, maintaining proper irrigation practices to ensure your lawn receives the right amount of water can help discourage the growth of nutsedge.

3. Hand Pulling: For small infestations, hand pulling nutsedge can be an effective method of control. However, it is crucial to remove the entire plant, including the underground tubers, to prevent regrowth. This can be a tedious and time-consuming process, especially if the infestation is extensive.

4. Herbicides: Herbicides can be an option for controlling nutsedge, but it’s important to choose the appropriate product and follow the label instructions carefully. Selective herbicides specifically designed for nutsedge control can effectively target the weed while minimizing damage to your desired lawn grass. Non-selective herbicides should be used with caution, as they can kill any vegetation they come into contact with.

5. Regular Maintenance: Maintaining a healthy lawn through regular fertilization, proper watering, and mowing at the correct height can help prevent nutsedge from becoming a major problem. By creating optimal growing conditions for your desired lawn grass, you can crowd out weeds like nutsedge and minimize their establishment and growth.

It’s important to note that controlling nutsedge can be an ongoing battle, as its underground tubers can persist in the soil for several years. Therefore, a combination of prevention, cultural control, and targeted herbicide use may be necessary for long-term management.

In my own experience as a gardening and landscaping expert, I have encountered numerous cases of nutsedge infestations in lawns. It can be a frustrating weed to deal with, but with consistent and proactive management, it is possible to keep it under control. Remember to always read and follow the instructions on herbicide labels, and consider seeking professional advice if you are unsure about the best approach for your specific lawn situation.

Photo of author

Caroline Bates

Caroline is a Miami-based landscaper who specializes in drought-tolerant landscapes. She is the mother of two young children and also enjoys writing for GreenPacks.org in her spare time. Caroline takes great pride in her work, and loves being able to share her knowledge with others through her writing.