Comparison Summary
Monterey Spurge Power is the best overall fit because its listed three-way formula names wild violet, supports both warm- and cool-season lawns and covers up to 16,000 square feet when used as directed. PBI/Gordon TZone products and Nufarm 4-Speed XT are strong alternatives for difficult broadleaf infestations and cool-weather use, but their grass restrictions and application rates deserve closer label review. Ortho Weed B Gon is the easiest choice for a smaller lawn when a concentrate and sprayer are acceptable. Hi-Yield Triclopyr Ester is more specialized: it fits perennial bluegrass, perennial ryegrass and tall fescue, but excludes several common warm-season grasses. Ready-to-use ferti-lome Weed Free Zone is convenient, although its product information here does not individually name wild violet, so confirm the current label before applying.
Buying Guide
Sizing and Capacity
Match container size to the lawn area and the likelihood of repeat treatment. Monterey Spurge Power is listed to cover up to 16,000 square feet from a 1-pint concentrate, while Ortho Weed B Gon covers up to 3,200 square feet from 16 fluid ounces. Gordon’s SpeedZone lists approximately 14,000 to 18,000 square feet from 20 ounces. Those figures are not directly interchangeable because coverage depends on dilution, application rate and turf type. A quart or gallon concentrate may be sensible for a large property or established infestation, but it can be unnecessary for a few violet patches. Ready-to-use ferti-lome avoids mixing but is purchased as a larger liquid volume, so compare treatment area rather than bottle size alone.
Feature Tradeoffs
Triclopyr is the most useful recurring active ingredient in this group for difficult wild violet control. Combination formulas add other active ingredients that can broaden the weed spectrum or support faster visible injury, but more ingredients do not remove the need to check grass tolerance. Monterey Spurge Power offers the broadest documented warm- and cool-season fit in this selection. TZone SE and Triad TZ emphasize difficult broadleaf control with four active ingredients. Hi-Yield is more narrowly matched to bluegrass, perennial ryegrass and tall fescue. Ortho and ferti-lome focus on simpler homeowner application, while concentrate products generally offer better flexibility for spot or broadcast treatment.
Best For, Avoid If
| Profile |
Recommended Product |
Why It Fits |
Avoid If |
| Homeowners with mixed warm- or cool-season turf and a sizable violet problem |
Monterey Spurge Power LG 5599 |
Monterey Spurge Power specifically names wild violet, supports listed warm- and cool-season lawns and covers up to 16,000 square feet. |
You do not want to measure and dilute concentrate or your exact grass is not listed on the current label. |
| Owners of established turf who want a broad combination formula for actively growing weeds |
Nufarm 4-Speed XT 228-590 |
Nufarm 4-Speed XT lists wild violet, four active ingredients and multiple turf use sites. |
Your hybrid bermudagrass is heat- or drought-stressed, or you need a product with fewer turf-sensitivity checks. |
| Small-lawn owners treating a limited number of broadleaf weed patches |
Ortho Weed B Gon Chickweed, Clover & Oxalis Killer 0396410 |
Ortho Weed B Gon specifically names wild violet and treats up to 3,200 square feet through a tank sprayer or Dial N Spray. |
You need coverage for a large property or want a product that requires no mixing or sprayer setup. |
| Owners of perennial bluegrass, perennial ryegrass or tall fescue lawns |
Hi-Yield Triclopyr Ester 35261 |
Hi-Yield Triclopyr Ester specifically controls wild violet and is designed for those listed cool-season turf types. |
Your lawn contains bahiagrass, bentgrass, bermudagrass, centipedegrass, St. Augustinegrass or zoysiagrass. |
Key Specs to Compare
Check five details before choosing: the exact model and bottle variant, whether wild violet is named on the current label, the active ingredients, compatible grass species and the application format. Then compare listed coverage, dilution rate, temperature range, rainfast interval, reseeding interval and any state or turf restrictions. A product labeled for warm-season lawns may still require dormant turf or a particular temperature window. A product labeled for broadleaf weeds is not automatically safe for every lawn grass. Treat the 1-quart and 1-gallon TZone listings as package choices within the same product family, not as different chemistries.
Setup and Handling Considerations
Ready-to-use products reduce measuring, but they still require the correct sprayer connection and even coverage. Concentrates require accurate dilution in a pump or tank sprayer and are best suited to buyers who can follow the label rate for the specific grass and treatment area. Apply only to listed turf, avoid drift onto ornamental plants and do not improvise a stronger mix for mature violets. The most useful timing is when weeds are young and actively growing, while TZone SE guidance gives a 50–85°F application range. Warm-season lawns need particular attention to whether the grass is dormant, actively growing or heat-stressed.
Maintenance and Longevity
Wild violet is a perennial with underground rhizomes, so a single visible injury event should not be treated as proof of permanent control. Late-season treatment during active growth is generally the more favorable timing, and mature colonies may require a sequential program allowed by the label. Keep the application interval and reseeding restrictions in view; Gordon’s SpeedZone lists reseeding in two weeks, while other products may use different directions. A dense, healthy lawn can reduce reinvasion pressure, but mowing and fertilization alone are unlikely to eliminate established colonies. Repeat only according to the current label and avoid treating turf that is stressed by heat, drought or unsuitable weather.
Reliability Signals
The strongest recommendation signal is an exact product document that names wild violet, identifies selective turf use and lists the grass species or conditions it supports. Monterey Spurge Power, TZone SE, Nufarm 4-Speed XT, Triad TZ, Ortho Weed B Gon and Hi-Yield provide especially clear use-case distinctions in the available product information. For broader formulas such as ferti-lome Weed Free Zone, verify the exact current label rather than assuming that a claim covering dozens of broadleaf weeds includes wild violet. Manufacturer documentation is also more useful than a generic bottle description when rates, dormant-season rules or sensitive turf are involved.
How to Compare Reviews
When reading buyer feedback, match the exact model, formulation and use case. A review of the 1-quart TZone product should not automatically be applied to the 1-gallon listing, and a result on cool-season turf should not be treated as evidence for St. Augustinegrass or zoysiagrass. Look for the named weed, the grass species, whether the product was concentrate or ready to use, the weather at application and whether the reviewer describes a first treatment or a repeat application. Separate comments about visible browning from evidence of longer-term control, since wild violet can regrow from rhizomes even after foliage is injured.
Common Mistakes
The most serious mistake is applying a product to a grass species excluded by its label. Hi-Yield Triclopyr Ester, for example, specifically excludes several common warm-season grasses. Other common errors include treating a concentrate as ready to use, using a broadleaf product on ornamental beds, spraying during heat or drought stress, ignoring temperature or rainfast directions, and assuming a larger bottle is stronger. Do not select a pre-emergent product for an established violet colony, and do not promise one-pass eradication where the label and the weed’s perennial growth habit point toward repeat treatment.
Frequently Asked Questions
Which active ingredient is most useful for established wild violets?
Triclopyr is the most consistently supported active ingredient among these choices for difficult wild violet control. Combination products that include triclopyr may broaden control of other weeds, but grass compatibility and label rate remain decisive.
Can I use the same herbicide on cool-season and warm-season grass?
Not automatically. Monterey Spurge Power is documented for listed warm- and cool-season lawns, while TZone SE may require dormant warm-season turf and Hi-Yield excludes several warm-season grasses. Check the exact grass, growth condition and application rate before spraying.
Should I choose ready-to-use spray or concentrate?
Choose ready-to-use when convenience and a smaller treatment area matter most. Choose concentrate when you need greater coverage, repeated treatments or more control over spot and broadcast application. Concentrate requires accurate dilution and a compatible sprayer.
Will one application eliminate wild violets?
Not necessarily. Wild violet is a perennial with rhizomes, and mature colonies may need sequential applications permitted by the label. Treat during active growth, follow the stated interval and do not assume visible leaf injury means the underground colony is gone.
Final Recommendation
Monterey Spurge Power LG 5599 is the best overall choice for most homeowners because it specifically names wild violet, covers up to 16,000 square feet and is documented for listed warm- and cool-season lawns. Choose PBI/Gordon TZone SE 1-Quart instead when you want the TZone combination formula in a more manageable package for a smaller or repeatedly treated lawn. For a small area where application convenience matters more than coverage, Ortho Weed B Gon is the more practical alternative; for bluegrass, perennial ryegrass or tall fescue only, Hi-Yield Triclopyr Ester offers a more specialized fit.
