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.
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
D
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
P
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!
D
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!
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.
Finalsan Weed Killer - Fast-Acting Glyphosate Alternative
So far it looks like this really WORKS!!! My lawn is greening up beautifully, and the (many) weeds have become fewer... need a few more weeks, and then a second application to really give it a proper review.
But so far, so good.
Hello Bobby, thank you so much for the fantastic 5-star review! We are thrilled to hear that the Fiesta Granular Weed and Feed 8-0-1 is already showing great results and that your lawn is greening up beautifully.
You are exactly right, while the initial green-up and early weed control happen quickly, following up with a second application a few weeks later is the perfect way to target any remaining stubborn weeds and establish long-term control.
We look forward to your follow-up review after the next application. Thank you for choosing us for your lawn care needs, and have a wonderful growing season! 🙌
I bought this product because I have a private well and can't use the usual chemical weed killers. I was stunned by how quickly this product tamed my overwhelming red and white clover. Within hours, the clover flowers and leaves were wilted. By the next morning they were sagging. When the sun came up, they turned black and died. This all happened in less that 12 hours. It was just what I needed. One drawback -- I live in Virginia and the product is only available in CO (as far as I can tell). The shipping cost is a little high, but when your choices are few . . . .
Thank you so much for the incredible feedback! ⭐ We are thrilled to hear that the Fiesta Organic Selective Weed Killer knocked out your overwhelming red and white clover so quickly, seeing it wilt and turn black in less than 12 hours is amazing!
It is truly the perfect choice for properties with private wells, delivering powerful results without the risks of traditional chemical herbicides. Just to clarify, while we are proudly based in Colorado, we do ship nationwide right to your door in Virginia! We completely understand that shipping heavy liquid products can add up, and we work hard to keep our carrier rates as direct and transparent as possible.
We truly appreciate your business and your commitment to safer lawn care. Have a wonderful growing season! 🙌
Thank you so much for the awesome review, John! ⭐ We're thrilled to hear you're loving the Rain Science Grow Bags. We think Rocky Mountain BioAg® rocks too, thanks to amazing customers like you! We truly appreciate your support and wish you a fantastic growing season. 🙌 The Rocky Mountain BioAg® Team
Thank you for taking the time to share your feedback, Aidan! We completely understand that seeing shipping costs add up can be frustrating, especially for high-density, heavy items like our Premium Montmorillonite | Calcium Bentonite Clay Trace Minerals.
The reality of logistics is that freight and shipping are often the most expensive components of moving heavy soil amendments. While many companies choose to bundle these fees into an inflated retail price to offer 'free shipping,' we prefer complete transparency. We choose to disclose all actual costs upfront so you know exactly what goes toward the quality of the product itself versus the direct carrier fees required to deliver it safely to your door.
We truly appreciate your business and your support! Please let us know if there is anything else we can do to help you out this season. ☀️
