Yuccas are resilient, drought-tolerant plants that can become invasive if not properly managed. Controlling unwanted yuccas requires effective weed killers specifically designed to target their robust root systems.

Yuccas are hardy plants that thrive in dry, well-drained soils. However, their high growth rate can make them INVASIVE, making them weeds that compete for space and nutrients with your other plants.

If you have a yucca plant in your garden or landscape, choosing the right weed killer to eliminate yuccas while controlling unwanted weeds is essential completely.

In this comprehensive guide, we will explore the 10 best weed killers for yuccas and provide detailed insights into each product to help you make an informed decision.

Tips for Choosing the Best Weed Killer for Yuccas

1. Identify the Type of Weed Killer Needed

   • Selective vs. Non-Selective: Determine whether you need a weed killer that targets only yuccas (selective) or one that eliminates all vegetation (non-selective).

2. Consider the Application Method

   • Foliar Spray vs. Soil Application: Choose between applying the herbicide directly to the leaves or to the soil, depending on the yucca’s growth stage and location.

3. Evaluate Environmental Impact

   • Organic vs. Chemical: Opt for organic herbicides if environmental safety is a priority, or chemical ones for more aggressive control.

4. Check for Rainfastness

   • Weather Considerations: Select a product that becomes rainfast quickly to ensure effectiveness even if unexpected rain occurs.

5. Assess Residual Effects

   • Soil Activity: Some herbicides remain active in the soil for extended periods; ensure this aligns with your future planting plans.

6. Review Safety Precautions

   • Protecting Non-Target Plants: Ensure the product is safe to use around desired vegetation and follow all safety guidelines.

7. Consider Cost and Coverage

   • Budget and Area Size: Evaluate the cost-effectiveness of the product concerning the area you need to treat.

10 Best Weed Killer For Yuccas

1. Ortho GroundClear Vegetation Killer – Best Selective Weed Killer for Yuccas

Ortho GroundClear Vegetation Killer is a potent herbicide designed to selectively target and eliminate yuccas without harming surrounding plants. Its dual-action formula penetrates deep into the soil, attacking the yucca’s root system to prevent regrowth. This makes it an excellent choice for maintaining landscapes where yuccas have become invasive.

The product boasts a fast-acting formula, with visible results in as little as 24 hours. It is rainproof within two hours of application, ensuring that unexpected weather changes do not diminish its effectiveness. Additionally, Ortho GroundClear provides up to one year of weed and grass control with a single application, reducing the need for frequent treatments.

For optimal results, apply the herbicide directly to the yucca foliage, ensuring thorough coverage. Avoid spraying on windy days to prevent drift onto desirable plants. Always wear protective clothing during application and follow the manufacturer’s instructions to ensure safety and effectiveness.

Pros:

• Targets yuccas effectively

• Rainproof in 2 hours

• Long-lasting control

• Fast-acting formula

• Easy to apply

• Prevents regrowth

• Suitable for large areas

Cons:

• May harm non-target plants

• Requires careful application

• Not organic

2. Roundup Ready-To-Use Weed & Grass Killer III – Best Non-Selective Weed Killer for Yuccas

Roundup Ready-To-Use Weed & Grass Killer III is a non-selective herbicide renowned for its ability to eliminate yuccas and other unwanted vegetation. Its powerful formula penetrates the plant’s system, reaching the roots to ensure complete eradication. This makes it ideal for areas where total vegetation control is desired.

The product features a convenient, no-mix formula with an attached sprayer for easy application. It is rainproof within 10 minutes, allowing for flexibility in various weather conditions. Visible results can be observed within three hours, making it a fast-acting solution for yucca control.

When using Roundup, apply it directly to the yucca plants, ensuring complete coverage. Avoid contact with desirable plants, as the non-selective nature of the herbicide will affect all vegetation it contacts. Always adhere to safety guidelines and wear appropriate protective gear during application.

Pros:

• Eliminates all vegetation

• Rainproof in 10 minutes

• Fast-acting results

• Convenient application

• Effective root kill

• No mixing required

• Suitable for large areas

Cons:

• Non-selective

• May require multiple applications

• Not organic

3. Spectracide Weed & Grass Killer Concentrate – Best Contact Weed Killer for Yuccas

Spectracide Weed & Grass Killer Concentrate is a fast-acting contact herbicide that effectively kills yuccas on contact by penetrating plant tissue and drying out the leaves and stems. It is an excellent option for spot treatments where immediate results are required.

This herbicide provides customizable concentration levels, allowing users to adjust the strength based on the severity of the infestation. It becomes rainproof within 15 minutes, ensuring its effectiveness even in unpredictable weather. Visible results appear within 3 hours, making it one of the fastest solutions for yucca removal.

For best results, mix the concentrate according to the manufacturer’s instructions and apply it directly to the yucca leaves. Avoid overspraying on desirable plants. Protective gear is recommended when applying.

Pros:

• Works in just 3 hours
• Kills on contact
•  Customizable concentration
•  Rainproof in 15 minutes
• Easy to apply
• Affordable
• Controls multiple weeds

Cons:

• Requires multiple applications
• Can harm surrounding plants
• Not organic

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4. Southern Ag CROSSBOW Specialty Herbicide – Best Brush Killer for Yuccas

Southern Ag CROSSBOW Specialty Herbicide is a powerful brush and woody plant killer that effectively eradicates yuccas from the root system. It contains Triclopyr and 2,4-D, making it an excellent option for stubborn and persistent yuccas.

This herbicide targets both foliage and roots, ensuring complete elimination and preventing regrowth. It is ideal for use in pastures, fence lines, and non-crop areas where yuccas have taken over. Results appear within 7-14 days, providing long-term control.

For best results, apply CROSSBOW directly to yucca leaves and stems, ensuring full coverage. It becomes rainproof within 2 hours, making it effective in most weather conditions. Follow safety precautions and avoid application near water sources.

Pros:

• Kills stubborn yuccas
• Systemic action targets roots
• Prevents regrowth
• Rainproof in 2 hours
• Effective on multiple brush species
• Long-lasting results
• Great for large infestations

Cons:

• Not safe for lawns
• Requires multiple applications
• Not organic

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5. RM43 Total Vegetation Control – Best Long-Term Weed Killer for Yuccas

RM43 Total Vegetation Control is a high-strength herbicide designed to eliminate yuccas permanently and prevent regrowth for up to one year. It contains Glyphosate and Imazapyr, two powerful ingredients that penetrate deep into the root system to ensure total elimination.

This herbicide is ideal for driveways, fence lines, and non-crop areas where complete vegetation control is required. It begins working within 24 hours, with full yucca death occurring in 7-10 days. RM43 is rainproof in 2 hours and provides season-long effectiveness.

For best results, apply RM43 when yuccas are actively growing, ensuring thorough coverage on the leaves and base. Avoid application near desirable plants, as it kills everything it contacts.

Pros:

• Permanent yucca removal
• Long-lasting (up to 1 year)
• Rainproof in 2 hours
• Kills all vegetation
• Works in 24 hours
• Great for fence lines
• Easy to mix and apply

Cons:

• Non-selective (kills all plants)
• Not safe for lawns
• Chemical-based

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6. Tordon RTU Herbicide – Best Stump Killer for Yuccas

Tordon RTU Herbicide is a specialized stump killer designed to prevent yucca regrowth after cutting. It contains Picloram, a potent ingredient that penetrates deep into the stump, stopping yuccas from sprouting again.

This ready-to-use formula eliminates the need for mixing, making it convenient and easy to apply. It is rainproof within 2 hours, ensuring long-term control of yuccas and other woody plants.

For best results, apply Tordon immediately after cutting the yucca, coating the freshly cut stump with the herbicide. Use protective gloves and clothing during application.

Pros:

• Permanent stump elimination
• No mixing required
• Rainproof in 2 hours
• Easy application
• Works on tough woody plants
• Prevents regrowth
• Long-lasting effectiveness

Cons:

• Can harm nearby plants
• Not organic
• May leach into soil

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7. Bayer BioAdvanced Brush Killer – Best Root Killer for Yuccas

Bayer BioAdvanced Brush Killer is a powerful herbicide designed to kill yuccas from the root up. It contains Triclopyr, which absorbs through the leaves and travels to the roots, ensuring complete elimination and preventing regrowth.

This formula delivers visible results within 48 hours, with full plant death in 1-2 weeks. It is rainproof within 4 hours and highly effective against woody and brush-type plants. The concentrated formula allows users to adjust potency depending on infestation levels.

For best results, apply directly to yucca foliage, ensuring full coverage. Avoid spraying on windy days to prevent accidental drift onto desirable plants.

Pros:

• Targets deep root systems
• Prevents regrowth
• Rainproof in 4 hours
• Concentrated for adjustable strength
• Effective on multiple brush species
• Easy to mix and apply
• Long-lasting results

Cons:

• Takes 1-2 weeks for full results
• Can harm non-target plants
• Not organic

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8. Gordon’s Brush Killer – Best Professional-Grade Weed Killer for Yuccas

Gordon’s Brush Killer is a professional-strength herbicide designed for stubborn yuccas and woody plants. It contains Triclopyr and 2,4-D, ensuring complete elimination of even the toughest yucca infestations.

This herbicide is ideal for large-scale applications such as pastures, roadsides, and non-crop areas. It provides visible results in 3-5 days, with complete yucca removal occurring in 1-2 weeks.

For best results, apply Gordon’s Brush Killer directly to yucca foliage, ensuring thorough coverage. It is rainproof in 2 hours and performs well in hot climates.

Pros:

• Professional-grade strength
• Kills yuccas from the roots
• Effective for large infestations
• Rainproof in 2 hours
• Prevents regrowth
• Fast-acting results
• Long-lasting control

Cons:

• Not ideal for small-scale use
• Requires protective gear
• Can harm nearby vegetation

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9. Roundup Super Concentrate – Best Systemic Weed Killer for Yuccas

Roundup Super Concentrate is a highly effective systemic herbicide that kills yuccas by penetrating deep into the roots. It contains Glyphosate, which is absorbed through the leaves and translocates to the root system, ensuring total elimination.

This herbicide is rainproof in 30 minutes and provides visible results within 7-10 days. It is ideal for fence lines, pathways, and large infestations where permanent yucca removal is needed.

For best results, apply to actively growing yuccas, covering all leaves and stems. Avoid spraying on windy days to prevent drift.

Pros:

• Kills yuccas permanently
• Systemic action targets roots
• Rainproof in 30 minutes
• Visible results in 7-10 days
• Long-lasting control
• Works on various brush species
• Easy to mix and apply

Cons:

• Non-selective (kills all plants)
• Not organic
• Slow results compared to contact killers

10. Ortho GroundClear Vegetation Killer – Best Non-Selective Herbicide for Yuccas

Ortho GroundClear Vegetation Killer is a potent non-selective herbicide designed for permanent yucca removal. It contains Glyphosate and Imazapyr, which penetrate deep into the plant’s root system to prevent regrowth for up to one year. This formula is ideal for use in driveways, sidewalks, fence lines, and non-crop areas where total vegetation control is required.

This herbicide works within 24 hours, with full results visible in 7-10 days. It becomes rainproof in 1 hour, making it an effective choice for various weather conditions. The ready-to-use formulation makes application quick and hassle-free, eliminating the need for mixing.

For best results, apply Ortho GroundClear to actively growing yucca plants, ensuring full coverage. Avoid spraying near desirable plants, as it kills all vegetation it comes into contact with. Use protective gear when handling and applying this product.

Pros:

• Permanent yucca removal
• Prevents regrowth for one year
• Rainproof in 1 hour
• Visible results within 24 hours
• No mixing required
• Works in various weather conditions
• Easy to apply

Cons:

• Non-selective (kills all plants)
• Not safe for lawns
• Chemical-based

Best Weed Killer For Yuccas  (FAQs)

1. What is the best herbicide for killing yucca plants permanently?

The best herbicide for permanent yucca removal is RM43 Total Vegetation Control or Ortho GroundClear Vegetation Killer, as they eliminate roots and prevent regrowth for up to one year.

2. How long does it take for herbicides to kill yuccas?

Most herbicides start working within 24 hours, but full results may take 7-14 days depending on the formula. Systemic herbicides like Roundup Super Concentrate work slower but provide deep root elimination.

3. Can I use herbicides on yucca plants in my lawn?

No, most yucca-killing herbicides are non-selective, meaning they will kill grass and other plants. For lawn applications, use spot treatments and avoid spraying on desirable vegetation.

4. Should I cut yucca before applying herbicide?

For best results, first cut the yucca close to the ground and immediately apply a stump killer like Tordon RTU Herbicide to prevent regrowth.

5. Are there organic options for controlling yucca plants?

Organic control methods like vinegar, salt solutions, or repeated digging may weaken yuccas but are not as effective as chemical herbicides for complete eradication.

6. How many applications are needed to kill yucca plants?

Yucca plants are resilient, so most herbicides require multiple applications over several weeks for full eradication. Systemic herbicides work best for permanent removal.

7. Can yucca plants grow back after using herbicides?

Yes, if not treated correctly, yuccas can regrow from root fragments. To ensure complete elimination, use a systemic herbicide and apply a stump killer after cutting.

Conclusion

Eliminating yucca plants requires powerful herbicides that target both the foliage and root system to ensure permanent removal. The top-rated options, such as RM43 Total Vegetation Control, Ortho GroundClear, and Tordon RTU Herbicide, offer effective solutions based on the severity of the infestation and application needs.

While contact herbicides like Spectracide Weed & Grass Killer provide quick results, systemic options like Roundup Super Concentrate offer long-term control by attacking yuccas at the root level.

For best results, choose an herbicide that matches your yucca problem—whether for small infestations, stump treatments, or complete vegetation control. Always follow safety guidelines, wear protective gear, and apply herbicides in dry weather for maximum absorption.

If needed, multiple applications may be required to ensure total eradication and prevent regrowth. By using the right product and method, you can effectively eliminate yuccas and reclaim your space.