The Verdict

Nufarm Change Up: The Heavy-Duty Broadleaf Killer That Means Business

If you’ve been fighting dandelions, clover, and creeping Charlie with granular weed-and-feed products that barely make a dent, you’re ready for something stronger. Nufarm Change Up is a professional-grade selective herbicide that’s earned a 4.6-star rating from 229 Amazon shoppers — and after digging into the formulation and real user results, it’s clear why this one stands apart from the big-box store options.

What You Actually Get

The quart container ships as a concentrated liquid — no sprayer included, so factor that into your purchase. One quart mixes to cover up to 32,000 square feet, which is roughly a third of an acre. For comparison, most granular weed killers cover 5,000–10,000 square feet per bag, making this a significantly better value for anyone with a real lawn.

The active ingredient is 2,4-D, a classic selective herbicide that targets broadleaf weeds while leaving your grass untouched. It also contains dicamba and MCPP, creating a three-way blend that tackles weeds at different growth stages — this is why it handles mature, established weeds that single-ingredient products miss.

Real-World Performance

The active ingredient mix is the star here. Users report seeing visible wilting within 24–48 hours, with complete kill in 7–14 days. One reviewer noted, “I sprayed my lawn on a Tuesday and by Saturday the dandelions were brown and shriveled. The clover followed a few days later.” Another mentioned that it cleared a pasture of thistles and ragweed that had resisted two seasons of other treatments.

It works best when applied in the spring or fall when weeds are actively growing — avoid spraying during summer heat stress or drought, as weeds go dormant and won’t absorb the herbicide effectively.

What Buyers Consistently Praise

The overwhelming theme across reviews is that this is the product you reach for when “gentle” options fail. Buyers repeatedly mention:

• Speed of visible results — most see action within two days
• Broad weed spectrum — handles everything from dandelions to poison ivy (when used as directed)
• Cost efficiency — one quart replaces multiple bags of granular product
• Selectivity — lawns stay green and lush while weeds die off

One long-time lawn care user put it plainly: “I’ve tried everything from Home Depot and Lowes. This is what the pros actually use, and it shows.”

Where It Falls Short

This isn’t a spray-and-forget product. You’ll need to read the label carefully, mix accurately, and apply with a dedicated sprayer. The odor is noticeable during mixing — several reviewers recommend wearing gloves and a mask. It’s also a contact herbicide that requires complete leaf coverage, so a cheap pump sprayer will do but a backpack sprayer with a fan nozzle is much better for larger lawns.

The biggest risk is overspray drift. If you have flower beds or vegetable gardens adjacent to your lawn, you need to pick a windless day and use a shield — this product doesn’t distinguish between your prize petunias and the dandelions next to them.

Who Should Buy This

• The acreage owner — anyone with more than 10,000 square feet of lawn will save significant money versus pre-mixed products
• The frustrated homeowner — if granular weed killers have failed you for two-plus seasons, this is the upgrade
• The pasture or field manager — handles tough pasture weeds like thistles and buttercups that residential products can’t touch

Skip it if you have a tiny postage-stamp lawn, want a no-mix hose-end product, or have extensive flower beds intermingled with your grass.

FAQ

Q: How long after spraying can kids and pets go on the lawn? A: Wait until the spray has fully dried — typically 2–4 hours. Once dry, it’s safe for foot traffic. For edible gardens, check the label for specific crop restrictions.

Q: Can I use this on Bermuda grass? A: Yes, but with caution. It’s safe for warm-season grasses when applied at the correct rate, but avoid spraying during spring green-up. Cool-season grasses like fescue and bluegrass are the most forgiving.

Q: Will it kill crabgrass? A: No. This targets broadleaf weeds only. For grassy weeds like crabgrass, you’ll need a pre-emergent or a different selective herbicide.

The Verdict

Buy it if: You have a substantial lawn with stubborn broadleaf weeds, you’re willing to invest in a sprayer, and you want professional-grade results without hiring a lawn service.

Skip it if: You want an easy hose-end product, have tiny lawns, or need to protect sensitive ornamentals in close proximity.

Rating: 4.6/5 — Deducting half a star for the lack of an included sprayer and the sensitivity to application timing. But for performance per dollar, this is the best selective herbicide I’ve reviewed. It does exactly what it claims, and for most buyers, that’s worth the extra effort.

Where to Buy

👉 Check Price on Amazon →

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.