Fermented Plant Extracts: Liquid Comfrey Extract Reviews
★★★★★ 4.92 out of 5·157 verified reviews·58 with photos
Melissa C.
I have not used this product yet, but happy that I have it standing by.
Aaron H.
I love you his stanky ass shit!!
Zachariah
I find this to be very beneficial for applications to early season plants, i feel it nearly double lettuce production compared to a row I didn't spray in my greenhouse.
Pat G.
Plants look happier the day after using!
Harding G.
Again! Just like previous orders: Informed updates, delivered on time and order correct
My first time using plant extract. I can actually comment on this product because you can notice an immediate response. Extremely stinky!! They say stink in stink out. I am now considering the pumpkin for later. Thanks again BOS
Peter I.
Have been using this in my compost teas and my plants look healthier and happier than ever!
Gregory S.
Been using various fpes from miles for a few years. even followed his directions and made my own peach ferment...I am aiways impressed. my plants love fpes as a supplemental right thru till harvest
John D.
🌟🌟🌟🌟🌟
A Must-Have for Any Organic Grower
I’ve been growing with living soil for years, and adding Fermented Plant Extracts to my regimen has been an absolute game-changer. You can feel the life in these brews — rich, potent, and alive with microbial energy. The results speak for themselves: faster growth, deeper greens, stronger resistance to stress, and undeniable terpene enhancement in flower.
What I love most is how adaptable FPEs are — you can customize based on the plant phase (veg vs. flower), use them as a foliar or soil drench, and blend them with other natural inputs. It’s regenerative, sustainable, and gives you a real connection to your plants.
Highly recommend to anyone serious about clean, conscious cultivation. These aren’t just nutrients — they’re plant intelligence in a bottle.
Michael B.
Comfrey Is Amazing for my Plants!
Joseph S.
Smells crazy when you first open it but maybe I’m used to it now, stink in stink out as they say my plants have never smelled so terpy and extra extra sticky. A leaf was accidentally touching a bud yesterday so I gently tucked it away and it pulled away multiple hairs, the stank makes dank!
Peter W.
My spring transplants do yoga the morning after transplant with BAS schedule feeding and the wonderful Comfrey ferment.
The extracts rock them!
Abraham R.
Overnight stem thickening and broader leaves. Doesn’t get better than this.
Omar M.
In the heart of nature's tracks, lie fermented plant extracts,
A potion brewed with care, in vats of ancient stacks.
From leaves and roots they hail, through time they never fail,
To bring forth health and vigor, in every soil we spray
Jason H.
Starting using at 1 oz every 10 days and add a half once more each 10 day period and the rails are crazy! The trichome heads seem so much bigger. The smell is amplified. Looking forward to the next round using the comfrey through veg as well
Michael P.
I noticed a big difference when I started using ferments healthy fast veg. Trust BuildaSoil try this.
Scott P.
This is one of those products that I don’t really know it’s affect ability. I’ve been using it since day one and I get pretty good results. I’m always very happy with my finished product so it stays.
Trent G.
When you first open the bottle the smell hits you hard! As BAS says stink in=stink out!
Nathan H.
Wow is all I have to say!! My plants are loving this fermentation and continue to stack sticker and sticker resin glands!!
Steve
Wonderful ferment I will be using again.
Kayla
Just from the few uses I could see amazing changes to my plant!
Jeremy W.
Firstly, the gallon size saves you tons. It also goes faster than you'd realize if you use it how you should. It'll save you time by not having to order more so soon. Lastly, your plants will thank you.
Andrew
Stinks up my whole basement when opening but the plants love it
Eric W.
Staple in my ferment lineup. Just one of many from my man Miles at Fermented Plant Extracts.
Peter in S.
The ferments are something I embrace. The plants here are standing tall in first light of the morning after they were fed the schedule with the COMFREY FERMENT the day before. The plants are a mix of mature seedlings (in black gallon containers) waiting to show their sex, along with two feminized plants in the fabric pots. They are a mix of Kid Kaya and Awkid plants along with Durban Poison.
Use the ferments, if you want the best herb of your grow experience.
Peter W.
I got hip to the ferments from one of Jeremy's You Tube videos. I have been using them in my outdoor grow for the second year now. This year, they are putting vigor in my seedlings, all planted 4 to 6 weeks ago. I watered/fed them an hour ago.
Look at how quickly they respond to the watering with Comfrey Ferment and the several amendments from the schedule.
Alberto Diaz R.
This smells funky in a good way, the soil and plants will all benefit from this!
Angie W.
Wow, what an odor but that's what the girls love! No complaints here!
Adam B.
Def a must during veg, even good through flower I love it!
Emmanuel
This quality is great ! My plants love it!
Cody B.
Plants are loving it, such a cool.source of benefits for the plants.
Mark C.
I like to mix up the ferments and create some more bio diversity. Comfrey is one of my go-to's along with Alphalfa, Thrive, Peach and Horsetail. Top shelf ferment.
rick c.
the product is wonderful , but it's like half the size and I believe the same price. was bummed when i opened it. Gonna start making my own again.
Jeremy B.
This ferment as well as the others I have purchased have provided fantastic results. Foliar applications have helped keep pathogens at bay, while soil drenches have had the leaves reaching for the sun! I make many of my own ferments now thanks to Miles’ sharing his methods, but still come back and purchase to show some love and support
Mark L.
I did a mix of some of the Comfrey Extract along with some Big 6 and I did it all week, They seem to like it a lot and did some growing Just a little something different when they needed water, for the week and also some when they needed some Top Watting they are looking like they have grown 3 in. with it. They liked it for sure !!
DeAzNuTz
One of the best ferments for clones and seedlings and vegetative stage plants. I also use it on tomatoes, peppers, and some houseplants. Highly recommend! Also try the Peach Ferment for BLOOM stage, you won't be disappointed I promise! Happy growing 🪴🗣️💨
a.b h.
Everything that I rec- is always a hit. Thanks again…..
Sam P.
If I was only going to use one fermented extract it would be this one.
duane r.
First thing, I want to say I absolutely love the smell.
Haven't noticed much, but just started using it.
Michael L.
love this stuff in veg or use it as seedling/cloning solution too. diluted down.
Bob R.
This ferment is perfect for the vegetation period. I use pumpkin during flower as well. Stink In, Stink Out!
Heads up, If you are not used to working with ferments, be prepared for some smells you might not have ever smelled before, and don't expect to get used to them...LOL
But hey, they ARE ferments!
Lucien D.
Great stuff. Plants seem to love it .
William
Get this your garden will love you
Andrés S.
honestly pumpkin may smell worse to be honest, I kind of like the stink coming from the comfrey and so do my plants!!
Freida H.
I thought it might boost my vegetables but the heat destroyed them. Will give you guys a follow up on the next batch of vegetables I’ve started. Thanks
Adam J.
Liquid awesomness!!! Never disappoints!!
Steve C.
Very good product I would recommend to all growers. Excellent growth after using it.
Ryan T.
Great product! Great company.
Steve M.
Within a day of the first use I could see a difference in my plants. It’s part of my watering routine now, highly recommend it
Dane L.
My plants loved the comfrey ferment, 2 days after 1st treatment plants are still perky, praying to the sun and lush green with bright green new growth out the tops!
Russell G.
Stink in, stink out! This shit is really helpful at breaking down biology in your soil.