2.5 Gallon Bottle of Finalsan Non-Selective Herbicide Organic Weed Killer Roundup Alternative
Finalsan Weed Killer: Non-Selective, Fast-Acting Solution
Case of Finalsan Nonselective Herbicide Roundup Alternative
Information Sheet for Finalsan Non-Selective Organic Weed Killer Roundup Alternative
Finalsan Non-Selective Organic Weed Killer Roundup Alternative Info Sheet

Finalsan Weed Killer: Non-Selective, Fast-Acting Solution

Regular price $95.42 Sale price$73.00
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Fast-Acting Weed Control You Can Trust

Finalsan® is the herbicide that delivers professional results without compromising your soil or health. This non-selective, fast-acting solution eliminates weeds, grass, algae, and moss while leaving zero soil residues.

Why Choose Finalsan?

  • Fast-Acting Formula - See results quickly, even in cool weather
  • No Soil Residue - Safe for replanting immediately after application
  • Glyphosate-Free Alternative - Effective without controversial chemicals
  • Low Re-entry Restrictions - Safer for workers and family
  • EPA Registered - Proven safe and effective

Perfect For:

  • Landscape maintenance
  • Total vegetation control
  • Moss and algae removal
  • Pre-planting site preparation

Experience the power of nature-based weed control with Finalsan - the professional choice for growers who demand results without compromise.

  • 5 stars: 32 (80%)
  • 4 stars: 6 (15%)
  • 3 stars: 1 (3%)
  • 2 stars: 1 (3%)
  • 1 star: 0 (0%)
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CHAD YOST

It works and fast

Hello Chad,

Thank you for the awesome 5-star review! We're thrilled to hear that Finalsan Weed Killer delivered fast and effective results for you. We truly appreciate your business and support!

The Rocky Mountain BioAg® Team

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Anonymous

Works!

That’s what we love to hear! Simple and straight to the point. Appreciate you giving Finalsan a shoutout, Terry.

The Rocky Mountain BioAg® Team

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Andrew Carberry

Mixed to standard recommendation and after 12 days, dandelions browned but still growing. I will reapply, but so far, I am not impressed compared to Ground clear (w/glyphosate).

Hello Andrew, thank you for your review and for giving Finalsan a try.

It is helpful to note how Finalsan operates compared to synthetic, systemic options like glyphosate (Ground Clear). Finalsan is an organic, contact-only herbicide made from ammoniated soap of fatty acids. It works by rapidly stripping the plant’s waxy cuticle to dehydrate the foliage. Because it is a contact spray and does not translocate to the roots, tough, deep-rooted perennials like mature dandelions may attempt to push new growth back up.

There are three rates of application. I would suggest using the highest rate and thoroughly coat the weeds to drip off. Finalsan is a weed and grass eater so something has to be off in the application rates, or amounts applied to the weeds. Finalsan is very effective.

Reapplying to starve the root system of energy is definitely the correct next step. We appreciate your patience as you transition to an organic approach, and our team is always here if you want to discuss application tips to get the most out of your spray!

The Rocky Mountain BioAg® Team

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chris marrone

Great stuff

Hello Chris, thank you for the 5-star review! We are glad to hear you are having great results with Finalsan Weed Killer. We appreciate your business and support!

The Rocky Mountain BioAg® Team

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Donald Focht

Been using for years.

Hello Donald, thank you for the fantastic 5-star review!

We truly appreciate hearing from our long-time customers. Finalsan Weed Killer is an excellent, fast-acting choice for reliable weed control, and we are so glad it has been performing consistently for you year after year. Thank you for your loyalty and support!

The Rocky Mountain BioAg® Team

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Kenneth Ograin

Try it for a couple of years and you’ll see a big difference

Hello Kenneth, thank you so much for the 5-star review! We are great to hear that you are seeing a big difference after using Finalsan Organic Weed Killer over the couple of years. Consistency is definitely key when it comes to managing tough weed pressure naturally, and your results show exactly why sticking with it pays off.

We truly appreciate your continued business and support. Have a wonderful day and a fantastic growing season! 🙌

The Rocky Mountain BioAg® Team

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Anonymous

Great stuff
Thanks

Thank you so much for the 5-star review! ⭐ We're thrilled to hear that the Finalsan Weed Killer is working fast and effectively for you. We truly appreciate your business and support!

The Rocky Mountain BioAg® Team

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David

good safer product than glyphosate, works well. Wish I could find iit local so the shipping is eliminated.

Thank you for sharing your feedback! We are glad to hear that Finalsan is performing well for you and providing a safer, effective alternative to glyphosate.

We understand that shipping costs can be a concern. While we strive to keep our logistics as efficient as possible, we take pride in ensuring these specialized, high-quality biological solutions are accessible to commercial growers and homeowners everywhere. We truly appreciate your support and are happy to be your reliable source for these products.

The Rocky Mountain BioAg® Team

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Paul
A force multiplier

This has been the difference between thistle, grass, and creepers overgrowing my landscaping and staying five steps ahead of the weeds. It obviously doesn't kill the whole weed, but I've been able to knock down the new growth again and again in a way I couldn't if I were weeding by hand. After enough applications, I'm finding that the rhizomes of my main problem (thistle) get starved out and stop regrowing. Way better than a torch.

Only challenge is spring growth, when weeds start growing but temperatures are still below 50 degrees, but in direct sun, this works so fast. Very very pleased with the results.

Thanks for sharing your success with Finalsan:registered:! We’re thrilled it’s helping you stay ahead of stubborn thistle and other weeds. For that cool early-spring window, try spraying in midday sun—just a few extra degrees kick the fatty acids into gear faster. Need more tips? Happy weeding!

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Donald M.
Exellent people to work with.

Exellent people to work with. Good product

Thank you so much for your kind words! We're thrilled to hear that you had a positive experience with us and are satisfied with Finalsan Weed Killer. It's a pleasure to support customers like you, and we're here anytime you need assistance. Happy gardening, and thank you for choosing our product! :seedling:

J
Jennifer M.
Happy with results

So far I am pleased with this product. I was looking for an alternative to round up to spray on my backyard. Will be reseeding the area with native flower seeds. After 1 day the grass and dandelions are dead. Need to order more!

Thank you so much for your positive feedback on our Finalsan Non-Selective Organic Weed Killer | Pro! We're thrilled to hear that it has been effective in your backyard and that you're pleased with the results.
We'd love to see how your reseeding project with native flower seeds turns out! If you have a moment, please share your experience with us by posting photos or updates. Your insights can help other customers make informed decisions.
Thank you for choosing our product and for your business. We look forward to serving you again soon!

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CJ S.
Works Great

So far this has worked better than Glyphosate on our gravel driveway with weeds like Yellow Clover, White Top and even Russian Knapweed before flowering. Spraying was done on regrowth, on a hot summer day about a month after mowing earlier in the season. The shipping was fast with excellent packaging I especially appreciate the tape on the container caps to prevent leaks.

Thank you so much for your detailed and positive review! We're thrilled to hear that Finalsan Weed Killer has worked better than Glyphosate on your gravel driveway, especially against tough weeds like Yellow Clover, White Top, and Russian Knapweed.
It's great to know that our fast shipping and secure packaging met your expectations. We always strive to provide the best possible experience for our customers.
Thank you for your business, and we look forward to serving you again soon!

H
Howard
:+1:

The stuff works good. Was brown the next day. You do have to apply for new growth. Overall I love it

Thank you so much for sharing your experience with our Finalsan Non-Selective Organic Weed Killer | Pro. We're thrilled to hear that you love the product and that it worked well for you!
We're dedicated to continuous improvement and appreciate your feedback about the need for reapplication on new growth. Your insights help us refine our products and better serve customers like you.
We look forward to serving you again soon!
Warm regards,
The Rocky Mountain BioAg:registered: Team

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Denise D.
Don't bother! Waste of money

I am very unhappy with this product! We have sprayed twice and no weeds or grass have died. We used 6 oz per gallon and the 2nd time we used 12oz/ gallon. I should see something!

We are sorry that you are unhappy with the results of Finalsan. The product is very effective when used at the proper application rates and applied properly. The size of weeds that you provided in the pictures would require the highest application of 21 ounces per gallon and the weeds would need to be coated to drip off. If application directions and methods are not followed the product is not effective.

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john g.
Excellent Product

Amazing within an hour the weeds were turning brown next day they be gone! I definitely recommend!

Thank you so much for your wonderful review! We're thrilled to hear that our Finalsan Non-Selective Organic Weed Killer worked so effectively for you. Your recommendation means a lot to us.
We look forward to serving you again soon!

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Linda M.
Spring weed treatment

First application (6wks ago) in area of early weed growth, went well. This date new weed growth has emerged from dormancy. I don't think I applied strong enough mix. Planning 2nd application. Have an area weeds are dense, more developed (+/- 3in) applied 32oz/1.5gal water. Great results, considering weed (predominantly "tumble weed") density/ height and application in between wind, rain, temp changes. Located
in SE Colo. Welcome to springtime in the Rockies!

Thank you for sharing your detailed experience with your first application and the plans for your second one. We're delighted to hear you achieved great results despite the challenging weather conditions in SE Colorado – springtime in the Rockies certainly keeps us on our toes!

Your feedback about the mix strength and weed density is invaluable and will assist us in continuing to improve. If you need any further assistance or have questions about your second application, please don't hesitate to reach out.

Thank you for your business! We look forward to serving you again soon!

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Dude g.
Works great noticed weeds dieing

Works great noticed weeds dieing within a day

We're thrilled to hear about your positive experience with Finalsan Non-Selective Organic Weed Killer | Pro! Thank you so much for taking the time to share your feedback. It's fantastic to learn that you noticed weeds dying within a day of application - a testament to the product's effectiveness.

Your satisfaction is our top priority, and knowing that we've been able to provide a solution that works well for you truly means the world to us. We're here to support your efforts in maintaining a weed-free environment in the most organic way possible.

Thank you again for your business and the wonderful review. We look forward to serving you again soon and continuing to meet your expectations.

Warm regards,
TEAM RMBA

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Thomas S.
Company is great. Good price,

Company is great. Good price, quick delivery. Product performs as described.

Thank you so much for taking the time to leave such a positive review of our Finalsan Non-Selective Organic Weed Killer. We're thrilled to hear that our company's commitment to competitive pricing and swift delivery stood out to you, and that the product has met your expectations in performance.

Your satisfaction is our top priority, and it truly makes our day to know that we've been able to serve you well. We're looking forward to the opportunity to provide you with more of our products in the future.

Thank you once again for your business. We're here for any of your future needs and look forward to serving you again soon!

Warmest regards,
Team Biological... Beyond Organic

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Tim B.
I thought I sent one

Great people to work with can answer ant questions

Thank you so much for sharing your positive experience with Finalsan Non-Selective Organic Weed Killer and our team! We're thrilled to hear you found our staff helpful and all your questions were answered to your satisfaction. Your business means the world to us, and we're looking forward to serving you again soon. If there’s anything else you need or further questions emerge, please don’t hesitate to reach out. Happy gardening!

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Tommy D.
Don't know yet. Ot has

Don't know yet. Ot has not had time to work.

Excited to hear an update on how Finalsan is working for your needs! Thank you for the business, we look forward to serving you again soon!

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Joanne S.
This Stuff Works!

I bought Finalsan to clear my 5000 sf back yard of weeds and existing growth prior to reseeding with RM BioAg's blend of native grasses and microclover. I was amazed at how quickly this product worked! I was worried that I wouldn't be able to track where I had sprayed and where I hadn't, but that wasn't a problem. It seemed like in a matter of minutes, I could see the beginning of discoloring of the sprayed growth. In a couple of hours, the growth went from green to black.

I cleared not only the yard, but I did perimeter spot spraying of weeds coming up in my back and front yards. I still have about 3/4 gallon left to use. While this is not a pre-emergent herbicide, I plan to continue using this product for general weed control. I just feel so much better about using a product that isn't going to harm the soil or the humans and animals that roam around on it!

Hello there!
We can't express how much it means to us to hear about your positive experience with Finalsan. :four_leaf_clover: It's absolutely wonderful to know that our product exceeded your expectations and made such a significant impact on your yard-clearing project. Tracking the progress of your work can indeed be a challenge with some products, so we're thrilled to learn that Finalsan's quick-acting formula made it easy for you to see exactly where you've sprayed. Your detailed feedback, from the discoloration of the weeds to the significant quantity left over for future use, is incredibly valuable to us and our future customers. It’s also great to hear you plan to continue using Finalsan for your general weed control—maintaining the environment while keeping your space green and clean is exactly what we strive for. :seedling: Thank you for trusting Finalsan with your backyard transformation and for taking a moment to share your experience. We're genuinely looking forward to serving you again soon and wish you all the best with your native grasses and microclover—you're cultivating beauty in more ways than one! Happy gardening! :blossom:

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Mike A.
Best organic weed killer I’ve tried!

Works on a wide variety of weeds. I’ve only found broadleaf out of dozens one so far that’s resistant to Finalsan.
Downside, it’s expensive, especially at the high rate. Also, like many organic weed killers, it won’t destroy the root system. It causes severe cell damage to coated parts. So, you have to reapply in a week or so to really kill some plants like grasses Eventually they run out of energy and die after 2-3 cycles.
It does kill some broadleafs like clover and chickweed on the first go.

Thrilled that you are loving Finalsan Weed Killer as much as we do! You are correct it is more expensive than traditional chemical weed killers but so much safer for people, pets and the environment! Thank you for the thorough review and your business! Look forward to serving you again soon!

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Kenneth O.
2nd year of use

Does a excellent job on grass and slows regrowth

Great to hear that Finalsan is working so well for your weed control needs! Thank you for your business, we look forward to serving you again soon!

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David W.
Kills Weeds Dead

Within hours you can see the weeds wilting and by the next day they are brown.

This is wonderful that Finalsan is working so well for your needs! We love this non-selective weed killer as much as you do! Thanks for the business, we look forward to serving you again soon!

Biological... Beyond Organic®

Organic is just the start

RMBA is committed to provide natural and organic products that support healthy soils. Even if a product is not listed as 'organic' you can rest assured that it will help, not hurt your soil.