Strategies for Banishment of Dollar Weed
If you've ever battled the persistent, pancake-like leaves of dollar weed, you know how it can easily take over a lawn or garden. Known scientifically as Hydrocotyle spp., this invasive perennial thrives in moist, poorly drained areas, spreading rapidly via seeds, rhizomes, and tubers. So, how can you successfully banish this stubborn weed? Let’s delve into some proven strategies for saying goodbye to dollar weed once and for all.

Identifying and Understanding Dollar Weed
Dollar weed, also called pennywort, is easy to recognize with its small, round leaves resembling tiny lily pads. It can grow up to six inches tall and thrives in damp conditions, often serving as a clue to poor lawn drainage. Before tackling dollar weed, ensure you address any underlying moisture issues, such as overwatering or compacted soil, which make your lawn more inviting to this opportunistic weed.
Natural Solutions for Small Infestations
For lighter infestations, try using some natural, DIY remedies. These methods are not only budget-friendly but also safer for the environment:
- Hand Pulling: Remove dollar weed manually, ensuring you pull out the entire plant (including the roots and rhizomes). This works best in moist soil.
- Boiling Water: Pour boiling water directly onto the weed. While effective, use caution to avoid damaging nearby grass or plants.
- Baking Soda: Wet the weed’s foliage, sprinkle with baking soda, and leave it overnight for optimal results.
- Vinegar: Spot treat using white vinegar with at least 5% acetic acid concentration. This method works well on dry, sunny days.
Chemical Approaches for Moderate to Severe Infestations
Larger outbreaks or stubborn patches may require chemical solutions. Implement these approaches carefully to protect your desirable plants and lawn health:
- Selective Herbicides: Use options like Atrazine, Manor, or Image, which target dollar weed without harming certain grass types like St. Augustine or centipedegrass. Always read the product label to ensure compatibility with your lawn. For comprehensive resources on chemical and manual removal methods, visit this guide on managing dollarweed.
- Weed and Feed Products: These combine lawn fertilizers with weedkillers, targeting dollar weed while promoting a thicker, healthier turf to crowd out future growth.
- Foliar Herbicides: If using products like Drive XLR8 or 2,4-D Amine, ensure they are absorbed by the leaves and roots for comprehensive control. Multiple applications may be needed.
Timing is Everything
When applying treatments, timing can make a big difference:
Post-Emergent Herbicides: Work best on actively growing dollar weed during warm temperatures (70–85°F).
Pre-Emergent Herbicides: Apply in early spring when the soil reaches 55–60°F to inhibit new growth.
Rejuvenating Your Lawn Post Treatment
Once you've tackled the dollar weed, it's time to restore your lawn’s health. Fill bare spots using overseeding or grass plugs, which will create a dense, weed-resistant turf. Don’t skip a soil test to determine nutrient deficiencies, and amend the soil with lime or sulfur as needed for a balanced pH. Regular mowing and reducing irrigation will help maintain a healthy landscape that discourages new weeds.
Comparing Dollar Weed Control Methods
Let’s break down the pros and cons of different control options:
Method | Best For | Considerations |
---|---|---|
Hand Pulling | Small infestations | Effective but labor-intensive |
Boiling Water or Vinegar | Small to moderate infestations | Non-selective; may harm surrounding plants |
Herbicides (e.g., Atrazine) | Moderate to severe infestations | Follow label instructions closely to avoid harming grass |
Battling dollar weed requires a mix of perseverance and the right strategies tailored to your infestation level. Are there any DIY tricks that have worked wonders for your lawn? Or perhaps you've experimented with a unique method we haven’t mentioned? We’d love to hear your tips and experiences in the comments below!
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Frequently Asked Questions
What kills dollarweed the best?
For moderate infestations, natural remedies like boiling water or vinegar can be effective when applied directly to dollarweed patches. However, these solutions require careful application to avoid damaging surrounding grass.
How do I use herbicides to kill dollarweed?
To control dollarweed effectively, mix a selective herbicide like MSM Turf or Fahrenheit with water as per the product instructions. Apply using a fan-spray nozzle on a hand pump sprayer for precise coverage and best results.
Can vinegar kill dollarweed?
Yes, applying vinegar directly to dollarweed can kill it. However, vinegar is nonselective and may harm surrounding grass or plants, so careful, targeted application is recommended.
Why does dollarweed keep coming back?
Dollarweed often recurs in lawns with excessive moisture and poor drainage. Ensuring proper lawn care, including reducing overwatering and improving drainage, can help prevent its return.
Is dollarweed harmful to my lawn?
While dollarweed itself isn't harmful to humans or pets, it competes with your lawn for water and nutrients, potentially weakening the grass and causing patchy growth.
As you embark on your journey to reclaim your garden from the clutches of dollar weed, remember it's not just about the battles you face, but the gardening victories you win. We love hearing about your gardening triumphs and challenges, so why not join our community and share your own success stories? Follow us on Pinterest for more tips and inspiration, or catch behind-the-scenes snippets on our Instagram. If you have quick questions or want to join the conversation, our X account (formerly Twitter) is buzzing with conversations, and our Facebook page is a friendly space for sharing and learning together. We can't wait to connect with you and watch your garden flourish!