Paul D.
★★★★★VerifiedDec 26, 2025
Gotta be full of good things when it smells tht strong haha. Always quality products.
Debra F.
★★★★★VerifiedDec 2, 2025
you guys make growing a very easy success thankyou
Michael R.
★★★★★VerifiedAug 11, 2025
Build a soil frass is top of the line like all thier products the best
Dennis D.
★★★★★VerifiedJul 21, 2025
frass. Plants loved this product. Strongly recommend.
Jonathan H.
★★★★★VerifiedJun 16, 2025
Haven’t seen any bugs since using this stuff and I can tell already the stock and stems are more robust. Definitely a great way to get Silica into your soil.
Dane L.
★★★★★VerifiedMay 22, 2025
It's the real deal, you can see the full exoskeletons of the insects, smells awful but i know my plants love it! I like giving it at the roots during transplanting!
Steve C.
★★★★★VerifiedJan 28, 2025
I haven't started my grow as of yet. All the build a soil products that I use are all extremely effective and hoping for a good grow this summer. You guys are awesome keep up the great work.
jason k.
★★★★★VerifiedJan 15, 2025
Smell is different. I believe the plants enjoyed eating them for health. 😊
Mark C.
★★★★★VerifiedDec 6, 2024
A perfect addition to my re-ammends, top dresses and nutrient/compost teas.
Jeff H.
★★★★★VerifiedDec 4, 2024
Great product from a great company.
Jeremy W.
★★★★★VerifiedNov 28, 2024
I've been growing fully organic/no-till since late 2018. I switched from "Down To Earth" one of the best brands on the market, but they are usually sold out of the products I use most. So, I would get stuck buying from random sellers on Amazon for highly inflated prices, since the closest retailer is half a state away. I use mostly BuildASoil products now because of the consistent quality assurance and direct availability. There are a few grow stores within an hour of my house. So, even if it isn't on the website I can still get whatever I need. It may take a few days longer to receive the order, but it's always worth the wait.
Joseph
★★★★★Nov 15, 2024
My plants are loving all the nutrients from build a soil so wanted to get this when the sale came up over Halloween
Greg H.
★★★★★VerifiedSep 28, 2024
My plants seem to love a top-dress with this stuff.
Matthew
★★★★★Sep 14, 2024
Jus the smell and over all texture let's u know this is the real deal
James C.
★★★★★VerifiedAug 27, 2024
I've been using Premium Insect Frass for the past 3 weeks. The outdoor plants, which are 3 weeks into flower, are thriving on the combination of Frass, BuildABloom and Build-A-Flower compost. This Frass will remain in my feeding schedule throughout flower to harvest.
William
★★★★★Aug 26, 2024
Love this product. A good way to give you plant nutrients they can use right away
Eric W.
★★★★★VerifiedJul 2, 2024
A staple for top dressing. Quality piece from the team at Build a Soil.
Eric C.
★★★★★VerifiedMay 8, 2024
I use Frass for a lot of things, including teas and amend. I decided to try their Frass because I've honestly loved every single product I've tried(MANY). I like the consistency. it's not to fine or chunky. It's got good surface area and got a nice stink to it, without running you outta the garden. I've just laid it into the outdoor garden, pre-planting, and im sure it will be amazing for ipm
Alberto Diaz R.
★★★★★VerifiedApr 26, 2024
The plants love this stuff but mainly the soil benefits from this, definitely get it if you’re on the fence about it!
Jeremy O.
★★★★★VerifiedMar 16, 2024
Got to say WOW when we give the girls a nice. What we call afternoon tea those girls freak out wat a response we get from that great stuff!!!
Noah S.
★★★★★VerifiedJul 29, 2023
Just started using it. Proofs in the pudding & always hard to judge what did what but all the BAS products I've used have been great.
Elizabeth R.
★★★★★VerifiedMar 25, 2023
Will let you know this summer how the Plants are doing. I plan to incorporate this in my potting soil as well as adding it to my “problem “ plants that have been troublided by aphids and scale. Great product. Thank you! 🌺
Ron F.
★★★★★VerifiedMar 18, 2023
Free shipping makes these very affordable for top notch frass
James N.
★★★★★VerifiedMar 1, 2023
Stuff seems to work great, things do better with it. The bag got torn in shipping and most of it spilled into the earthbox. after cleaning it up and putting it back in the taped up bag I weighed it to see how much got lost out of the cardboard box and the 7 lb bg weighed 8 pounds.
jason
★★★★★VerifiedFeb 18, 2023
I use this frass as my only fertilizer seed to harvest along with build a soil mineral mix. All the n-p-k your cannabis or fruit trees will desire! I’ve been a craft blend user for years and will never go back.
MATTHEW F.
★★★★★VerifiedFeb 7, 2023
My plants love the frass and a little goes a long way when top dressing
Robert S.
★★★★★VerifiedJan 19, 2023
Everyone should incorporate these products in the indoor gardening .. I mix my own soil and amendments and practice clean.. It got rid of all fungus bugs .. It took care my immediate concern.
Jeffrey
★★★★★VerifiedNov 25, 2022
I always add (top dress) mid vegetarian then again in the first week of flower along with worm castings. After watering the juices trickle through the root ball. Helps with strengthening stems and enhance trophic levels in my soil.
Neal
★★★★★VerifiedNov 23, 2022
Tob dressing or in tea, this stuff is a powerhouse. Loaded with good stuff for your girls to make them strong, healthy, and pest/disease resistant.
ROBERT D.
★★★★★VerifiedOct 22, 2022
BEST I HAVE EVER BOUGHT THESE GUYS HAVE FIRST QUALITY PRODUCTS
Kenneth S.
★★★★★VerifiedOct 15, 2022
Smells strong at first. Don't inhale it lol
Kyle F.
★★★★★VerifiedOct 10, 2022
Goes in the soil mixes and teas
Marco S.
★★★★★VerifiedOct 4, 2022
It came quick and I use it in my soil. Any product I've gotten from build a soil has been amazing so I don't see this being any less then that. More than enough in the smallest bag to last a while.
Richard K.
★★★★★VerifiedSep 25, 2022
Great product Feeds fungi n Plant. Used by Eaglhunt_55 @ Instagram
Ron B.
★★★★★VerifiedSep 16, 2022
Great product. Always add it to my mix.
AMM
★★★★★VerifiedSep 11, 2022
Use it for chitin source as a too dress in flower. Always have on hand.
David Barstow J.
★★★★★VerifiedSep 7, 2022
I can’t wait to use it and provide a follow up review.
javier a.
★★★★★VerifiedAug 11, 2022
I usually use this to top dress during veg.
christopher m.
★★★★★VerifiedJun 18, 2022
I mix this in when I amended my soil / Plants are strong from this
Jason D.
★★★★★VerifiedJun 12, 2022
Like everything else here it’s the just the best.
Rob W.
★★★★★VerifiedJun 2, 2022
An old head put me onto this and I never looked back
Ty C.
★★★★★VerifiedMay 23, 2022
Been looking for some new ways to add some chitin to the mix!
Kraig G.
★★★★★VerifiedMay 17, 2022
Works well as soil amendment, soil top dress, or tea amendment.
David T.
★★★★★VerifiedMay 16, 2022
I’m exited to try this product. Description and shipping were excellent. As far as results it’s too early to tell, I spread the frass about a week ago and just put my transplants in. I’ll update when I can speak about results, but I expect great results.
Barry G.
★★★★★VerifiedMay 16, 2022
I amended my soil with it for next round and used as a foliar spray on my current grow.
RickyDee
★★★★★VerifiedApr 21, 2022
Frass has worked well on my plants that I’ve been experimenting growing fully organic, and things have been going great !!
Loren S.
★★★★★VerifiedMar 23, 2022
I use it almost every watering and in my mister blast love it tomatoes and basil going crazy
Micheal m.
★★★★★VerifiedMar 9, 2022
Love this product, I add in my soil mixes as well as foliar and make compost teas. Plants love this stuff! Haven’t had a pest issue as well.
Kenneth D.
★★★★★VerifiedMar 9, 2022
I use it as a soil amendment, and to make compost tea.
mark m.
★★★★★VerifiedMar 3, 2022
Just got the product,incorporated it into my routine,will post results in the future.