Showing 125 of 47 matching reviews

Peter O.
★★★★★VerifiedMay 9, 2026
I always loved hoe Thrive made the plants stand up and salute. Here are my spring seedlings doing YOGA after a dose (or two ) of TINY amounts of Holy Cow in the last week. OMG or Holy Cow is right!!! Get some and share the love with your girls.
on Thrive Yah-Whey Concentrate: Holy Cow
David D.
★★★★★VerifiedApr 22, 2026
Great for soil biology but boy does it have a smell 😬 plants love it
on Thrive Yah-Whey Concentrate: Holy Cow
Bradley D.
★★★★★VerifiedMar 29, 2026
Very pleased with this as well seems to work well so far for my bonsai trees enjoy experimenting with quality products thanks again
on Thrive Yah-Whey Concentrate: Holy Cow
Zachariah
★★★★★VerifiedJan 23, 2026
I've had great success spraying over freshly laid sod when doing a lawn renovation to help it root and grow vigorously.
on Thrive Yah-Whey Concentrate: Holy Cow
Oliver S.
★★★★★VerifiedJan 13, 2026
Most intense smelling liquid I have ever used, Smells like pure concentrated fart gas that sticks around, The plants do not care about the smell, the plants pray to the heavens. Loving this one so far. It smells filthy..
on Thrive Yah-Whey Concentrate: Holy Cow
Misha S.
★★★★★VerifiedJan 4, 2026
Great stuff! The concentrated version goes a long way with a nice boost of calcium as a bonus. The smell grows on you in that “inside farm” type of way.
on Thrive Yah-Whey Concentrate: Holy Cow
ROBERT D.
★★★★★VerifiedDec 23, 2025
great product been using for a year now and all i can say about it is holy cow this realy works great
on Thrive Yah-Whey Concentrate: Holy Cow
Glenn
★★★★★Sep 16, 2025
This stuff is a game changer! I cannot recommend it enough. Thank you build a soil for all your quality products!!
on Thrive Yah-Whey Concentrate: Holy Cow
Leo B.
★★★★★VerifiedJul 15, 2025
Worst smelling liquid I have ever smelled and I have changed baby diapers! I went light on the amount used and still have seen my plants take off like crazy. Make sure you shake well before using as it separates fairly quickly. Thanks again to BAS for their amazing products. 5 stars!!
on Thrive Yah-Whey Concentrate: Holy Cow
Mark C.
★★★★★VerifiedJun 2, 2025
It would be this stuff. The plants love it and in this concentrated form, with Cow Cal it's even better than the original Thrive. And since it's a 4:1 ratio, it also Des up saving me some red money, which of course I can use to but more BAS products, lol. Gret stuff.
on Thrive Yah-Whey Concentrate: Holy Cow
Michael S.
★★★★★VerifiedJun 2, 2025
Great stuff I'm using 2 Oz per 5 gallon of water along with build a bloom powder. We tried 6 Oz per 5 gal was too much. Low dose seems perfect. Happy plants explosive growth. I also top dressed a.week before flower cycle. I recommend to my friends that grow. Thanks to Eric he recommended it , he is very knowledgeable I learn something every time I order.
on Thrive Yah-Whey Concentrate: Holy Cow
Colin D.
★★★★★VerifiedMay 6, 2025
I use a living soil but it still needs help along the way.. Holy Cow does a great job to get me to the harvesting stage
on Thrive Yah-Whey Concentrate: Holy Cow
Jarrod L.
★★★★★VerifiedMay 3, 2025
Very stinky with great results
on Thrive Yah-Whey Concentrate: Holy Cow
Richard D.
★★★★★VerifiedMay 1, 2025
Loved the YaWhey so i had to go ahead and try out the HolyCow and so far I'm just as impressed. Awesome all around product 💯
on Thrive Yah-Whey Concentrate: Holy Cow
Damien H.
★★★★★VerifiedApr 30, 2025
My plants love this stuff. They will perk up nicely
on Thrive Yah-Whey Concentrate: Holy Cow
Damien H.
★★★★★Apr 25, 2025
This stuff is amazing. My plants love it. Love seeing them pray to the light. Happy as can be.
on Thrive Yah-Whey Concentrate: Holy Cow
Philip W.
★★★★★VerifiedApr 4, 2025
A little pricey, but we'll worth it!! Plus if you break it down, it's cheaper to buy this. Plants love it!!
on Thrive Yah-Whey Concentrate: Holy Cow
Hank
★★★★★VerifiedMar 13, 2025
It's true what they say, when they say "instant results"! Plants were amazing and looked as healthy as a horse with plenty of horsepower if ya know what I mean!!!
on Thrive Yah-Whey Concentrate: Holy Cow
Todd T.
★★★★★VerifiedFeb 4, 2025
Young plants seem very happy with this new addition. It does smell like a cattle truck when you open it.
on Thrive Yah-Whey Concentrate: Holy Cow
Larry Y.
★★★★★VerifiedJan 26, 2025
I’ve only been using this product for a short while, but I can definitely say everything looks to be in order. Easy to use, just put it in with the water.
on Thrive Yah-Whey Concentrate: Holy Cow
High L.
★★★★★VerifiedJan 2, 2025
I used from early Vegas to mid flower this run and have seen it do wonders with additional nutrients. A little goes a long way.
on Thrive Yah-Whey Concentrate: Holy Cow
Eric D.
★★★★★VerifiedDec 19, 2024
I have never had a product have such an impact on my plants. All fan leaves have been praying the entire grow and the plant has shown more vigor. Will definitely keep using this product!
on Thrive Yah-Whey Concentrate: Holy Cow
Joshua C.
★★★★★VerifiedDec 18, 2024
A worthwhile addition to my ferments routine.
on Thrive Yah-Whey Concentrate: Holy Cow
Steve C.
★★★★★VerifiedDec 17, 2024
Haven't used this product yet, if it's still as great as the thrive original I'll take it. Definitely a believer in this product.
on Thrive Yah-Whey Concentrate: Holy Cow
Jeff A.
★★★★★VerifiedDec 14, 2024
Plants love it. A must for the garden.
on Thrive Yah-Whey Concentrate: Holy Cow