Dollarweed: How to Identify, Eradicate and Understand


Dollarweed, also known as pennywort or hydrocotyle, is a common weed that can cause havoc in lawns and gardens. Its scientific name, Hydrocotyle spp., refers to a plant genus that includes several dollarweed species. This article will offer a complete article on how to identify, eradicate, and understand dollarweed and its negative impact on your landscape. Whether you are a homeowner or a professional landscaper, this information will help you effectively deal with dollar weed and maintain a healthy, weed-free outdoor space.

What is Dollarweed?

Dollarweed, scientifically known as Hydrocotyle spp., is a perennial weed in the Apiaceae family. It is characterized by its round, coin-shaped leaves that resemble miniature lily pads, hence the name “Dollar weed.” This plant thrives in wet and poorly drained soil, making it common in lawns, gardens, and other moist areas such as ditches and marshes.

What Does Dollarweed Look Like?

Identifying Dollar weed is essential for effective control. Dollar weed has distinctive characteristics that set it apart from other plants. Its leaves are circular and glossy, with a 1 to 3 inches diameter. The leaf margins are scalloped, creating an attractive appearance but also making it an unwanted intruder in manicured lawns. The stems of dollarweed are slender and long, with small white flowers blooming on top during summer.

To accurately identify Dollar weed, look for its unique leaf shape, scalloped edges, and the presence of long stems and white flowers. Once you are familiar with its appearance, you will be better equipped to take the necessary steps to eradicate it from your lawn or garden.

Identifying Dollarweed

Identifying dollarweed can be challenging, especially for those unfamiliar with its distinct features. Here are some key characteristics to look out for:

  1. Leaf Shape: Dollarweed has round, coin-shaped leaves with scalloped edges. The leaves are smooth, shiny, and bright green in color. They resemble miniature lily pads, making dollarweed easily distinguishable from other plants.
  2. Growth Habit: Dollarweed spreads by runners, which are above-ground stems that produce new plants at nodes. These runners allow the weed to quickly establish itself and take over large areas. Look for the presence of runners and new plants emerging from them.
  3. Flowers and Seeds: During summer, dollarweed produces small white flowers that bloom on long stalks. These flowers eventually give way to seeds, which can further spread the weed.

By closely observing these characteristics, you can confidently identify dollarweed and take appropriate action to control its growth in your lawn or garden.

The Negative Impact of Dollarweed on Lawns and Gardens

Dollarweed can have a detrimental impact on lawns and gardens if left unchecked. Here are some key points highlighting its negative effects:

  1. Competition for Resources: Dollarweed competes with desirable plants for nutrients, water, and sunlight, which can lead to stunted growth and reduced vigor in your lawn and garden.
  2. Aesthetic Decline: The presence of dollarweed can significantly diminish the visual appeal of your landscape. Its dense mats and round leaves create a weedy and unkempt appearance.
  3. Reduced Biodiversity: Dollarweed forms thick mats that smother other plants, reducing plant species diversity in your lawn and garden. This can disrupt the natural harmony of your ecosystem.
  4. Habitat for Pests: The dense foliage of dollarweed provides an best hiding place for pests such as mosquitoes and ticks, increasing the risk of infestations in your outdoor spaces.
  5. Environmental Impact: Dollarweed can invade natural areas and wetlands, displacing native vegetation and disrupting delicate ecosystems.

Eradicating Dollarweed: Natural and Chemical Methods

When it comes to eradicating dollarweed, both natural and chemical methods can be employed. Natural methods include hand-pulling, which involves manually removing the weed from the soil. This method is effective for small infestations but can be labor-intensive for larger areas. Another natural approach is smothering dollarweed with a thick layer of mulch, which deprives it of light and prevents its growth. Additionally, improving drainage and reducing excessive moisture in the soil can discourage dollar weed from thriving.

Chemical methods involve using herbicides specifically formulated to target dollarweed. Selective herbicides, such as those containing 2,4-D or dicamba, can effectively control dollarweed without harming desirable plants. For safe and efficient use, it’s crucial to thoroughly read and follow the instructions provided by the herbicide manufacturer. When using any chemical method, it is crucial to consider the potential environmental impact and take necessary precautions to protect surrounding vegetation and water sources.

Preventing Dollarweed from Spreading

Preventing the spread of Dollar weed is essential to maintain a healthy lawn or garden. Here are some key points to consider:

  1. Regular mowing: Keeping the grass at the recommended height will help shade out Dollar weed and prevent it from receiving sufficient sunlight to grow.
  2. Proper watering: Watering deeply and infrequently encourages the development of deep roots in the grass, making it more resilient against dollar weed invasion.
  3. Fertilization: Applying the right amount and type of fertilizer will promote a healthy lawn that can outcompete dollarweed.
  4. Mulching: Using organic mulch around plants and in garden beds can effectively inhibit the growth of dollar weed and hinder its establishment.
  5. Weed control: Removing any dollar weed that appears will prevent it from spreading and producing new plants through its stolons.

Understanding the Life Cycle

Understanding the life cycle of dollar weed is essential to effectively control it. Dollar weed is a perennial plant, meaning it can live for multiple years. It primarily reproduces through seed production, although it can also spread through its vast root system. The seeds of dollar weed can remain dormant in the soil for extended periods, germinating when conditions are favorable. Understanding the life cycle of dollar weed can help you time your control efforts for maximum efficacy.

Dollarweed experiences peak growth and flowering during the spring and summer months. This is the ideal time to implement control measures, as the weed is actively growing and vulnerable to herbicide applications. In the fall, dollarweed starts to die back and slows down. This is a good opportunity to focus on prevention and prepare your landscape for the upcoming winter months. By understanding the life cycle of dollarweed, you can tailor your control strategies to manage this invasive weed throughout the year effectively.

Dollar weed Control in Different Seasons

Controlling Dollar weed requires a proactive approach throughout the seasons. Here are some pointers to keep in mind for dollarweed control in different seasons:


  • Apply pre-emergent herbicides to prevent Dollar weed seeds from germinating.
  • Hand-pull any emerging Dollar weed plants to prevent them from establishing a foothold.


  • Regularly inspect your lawn and garden for dollar weed growth and promptly remove any plants.


  • Apply post-emergent herbicides to control dollar weed before it goes dormant for the winter.
  • Rake up any fallen leaves that could shelter dollar weed seeds.


  • Monitor your landscape for any signs of dormant dollar weed and take necessary control measures if needed.

By following these seasonal guidelines, you can stay on top of dollar weed growth and prevent it from taking over your lawn and garden.

Professional Dollarweed Control Services

Eco Lawn Florida offers top-tier Professional Dollarweed Control Services that guarantee a pristine, weed-free landscape. Our experienced team specializes in eradicating dollar weed and restoring the natural beauty of your lawn and garden. Say farewell to persistent weeds and hello to a lush, healthy outdoor space with Eco Lawn Florida. Contact us today to schedule your consultation and take the first step towards a greener tomorrow!


Is Dollar weed harmful to humans or pets?

Dollarweed is generally considered non-toxic to humans and pets. However, washing your hands after handling dollarweed and preventing pets from ingesting it is still advisable.

Can dollarweed be composted?

Composting dollarweed is not recommended, as the seeds can survive the composting process and potentially spread to other areas when the compost is used.

How long does it take to eradicate dollar weed?

The time it takes to completely eradicate dollar weed depends on various factors, including the severity of the infestation, the control methods used, and consistency in implementation. It may take several months to a year or more to achieve complete eradication.

Can dollar weed grow in full sun?

While dollarweed prefers shady areas, it can tolerate some sun exposure. However, it generally thrives in moist, shaded conditions.

Are there any natural predators or biological controls for dollar weed?

Currently, there are no known natural predators or biological controls that specifically target dollarweed. Control methods primarily rely on mechanical or chemical means.


Dollar weed can be a persistent and troublesome weed, but it can be effectively managed successfully with proper knowledge and effective control strategies. You can achieve a beautiful and healthy lawn or garden by identifying dollar weed, understanding its life cycle, and employing appropriate eradication methods. Whether you choose natural or chemical methods, following best practices and considering the environmental impact is essential. In cases of extensive infestations or overwhelming weed growth, seeking professional dollar weed control services is a viable option. With determination and consistent efforts, you can enjoy a weed-free outdoor space and restore the vitality of your landscape.

Transform your outdoor space with Eco Lawn Florida’s professional dollarweed control services! Say goodbye to stubborn weeds and hello to a lush, healthy lawn and garden. Our expert team will assess your landscape, develop a tailored eradication plan, and implement effective control methods, ensuring long-term results. Don’t let dollarweed take over—contact us today to reclaim your outdoor oasis!