here's the original video where you can see that RGS and Hydretain were the clear winners kzfaq.info/get/bejne/hqiVn7al3bbFoHk.html (those pots sat for 4 months)

I appreciate you putting the effort into these videos in those extreme conditions to educate and entertain us. I remember those last experiments well.

Really enjoyed this! The music, the editing, the test. Do more test videos! Interesting results

Great vid Al! After your rerun the experiment, could you do one for cool season lawns too please? Thanks for your hard effort!

I would love to see more test like these. When it comes to any lawn care products or maybe to show what plug and tine aeration actually does to change a lawn

I think you proved the combo of rgs and humic 12 is a great base to start with. And hydretain will bring the whole thing home. For me this was the first year I did a regular schedule with humic 12. I tried hydretain in June. My lawn has never looked better. Thank you for great product offerings.

Those palm trees bout to get busy!! But I’m interested to see how the redo with the starter fertilizer. I loved the color and top growth on that one.

Mr. LCN ❤ur content. Ur a God sent for the novice lawn care, dude. Thanks, keep up the GREAT work! By the way ❤ the t-shirt Skynyrd fan 4 life!!! God bless✌🏻

Very interesting results. I'm definitely surprised at how slow zoysia likes to grow that those roots grew so quickly!! Great job!

Love the honesty......this is why to be safe I use them all lol .....feeds my spraying addiction and helps the grass haha

Great content. Love the comparison experiments! Variables can be difficult to manage, good job and thank you for sharing

Man, what an awesome video, regardless of the hiccups. For me, it proves that biostimulants aren't just snake oils. To visually see this, well...first off makes me glad I've been using Sea K for several years, but to see a difference from water only, I think for me it solidifies the purchase of such products. I agree GreenePop had to have went bad, but can't wait for next video. Well done! Was excited to watch the results of this one.

AWESOME test! I've always noticed there was something special when appling Sea-K. I could'nt ever put my finger on why, but could always tell a difference. More like a gut feeling that my lawn was happier, lol. Now I now why. Thanks Al for the info looking forward to seeing the next one.

I think your root theory explains the GreenPop result. You gave the roots everything they needed for the plant to grow and it did. The plant could spend its energy on top growth where it could seek sunlight and the plant had no reason to expand its roots. The others grew roots to seek the nutrients they lacked.

These are great tests Alan, I am curious to see more. I have moved away from Next Gen products as the cost per application was insanely high vs. other products out in the market and my results were meh. I found other products to deliver better results pound for pound in my Zeon Zoysia. I also find that buying many products separately, like liquid iron, sea kelp, humic acid, micro nutrients and dissolvable urea (46-0-0) then mixing together in a tow behind sprayer or backpack sprayer can give a homeowner 20:1 value vs. buying this premixed stuff. Some of your results prove this point well when compared to placebo.

The best result will be the palm trees growing several feet in the next couple weeks.

Very interesting test! For the next I’d be curious to see an additional “kitchen sink” test that’s a little starter with some RGS and Hydretain.

I'd use a gallon jug for each product and apply at recommended intervals, plus then you have a premade gallon of product to use else where. On top of that, you can spoon feed for example the greenpop. It might be a longer testing, but more informative results for each product alone. This could help us target special locations that need this added to help type information. Great testing, I think I might have to add sea-K to my program.

Great experiment! Would love to see a granular fert used in the test!

WOW! I didn't know you could plant in paver sand. I learned today. Thanks for sharing.

Favorite series you do

A ton of work! Thank you for all your efforts!!!

Really fun to watch. While the GreenPop didn’t grow longer roots, the color was sure beautiful! I’ll just keep buying the 4 packs, Stress Blend and Flagship. I don’t think throwing down your whole kitchen sink can ever be a bad thing! 😂👍

Please make the follow up as promised... That was great!! Interested to see with no bottoms, and with more information on the watering regimen required with no bottoms and the sun. I have very deep sandy soil which is dry right after I water it... not hard just drains well, so I am growing hydroponically, just like what you are doing in this sand(if no bottoms)... I need my Zoysia root system to develop for obvious reasons... Having the hardest time in full sun because I think the nutrients are washing away and getting used up faster... and water is in short supply.

Was just listening to the podcast and immediately get to see the results, sweet. Now do TTTF :)

This was fun. Geeking out on the lawn was awesome. Got my popcorn ready for part 2!

LCN this was an awesome experiment to see. Would you ever try comparing the bio stims on different grass types?

LCN! Excessive nitrogen makes the plan develop shoot growth over root growth. Grass plants are opportunistic in It’s nature, meaning if it get´s nitrogen, it will prioritise that over root growth. The more nitrogen over a certain amount, the root growth diminishes. This is why smaller doses of nitrogen is more beneficial, as it does not inhibit root growth. This can be achieved with slow release fert, or with spoon feeding fast release. STERF have some nice research on this.

This is the type of lawn care video I'm searching for on KZfaq

Outstanding "camera person" who did a fabulous job!!!

Sea kelp it is then! Thanks for the info.

This was awesome. Definitely some interesting results.

Thanks for your time and effort towards this type of content. Interesting stuff.

You beat me to it! Good work Al

This definitely confirms my purchases of Kelp Help and Liquid Kelp supporting the kelp farmers on the West Coast...this was awesome! I'm out here in San Antonio doing all that I can for my raised garden and lawn

Best experiment for lawn products EVER

I really appreciate this video and great job. Hard to control all elements - in each of the videos the left side of the video seemed to have more sun. Maybe element of time of day.

Well done! Looking forward to the next experiment!

Definitely an awesome video. Would also love to see more. Thanks Allyn!

Excellent video

This was an excellent and very educational video. I ll be looking for the test on the St Augustine 👍

Great video, looks ike RGS is snake oil, wish I didn't have 5 gallons of it.

I started out thinking the longer the roots the better but I think the opposite is actually true. Wouldn't a better fertilizer cause the roots NOT to shoot down in search for nutrients? I'm definitely not a botanist, I could be wrong 🤷🏻‍♂️😆 I'd use Greene Pop based on its growth and dark green color, no root growth means it wasn't needing food besides the Greene pop. I bet when used as recommended it would get a new lawn up and running really well. Would be super interesting to see this done with seed

Love the new series, Breaki g Grass

GREAT vid!!!! Now i know i need to get Sea-K to drive my lawns roots deeper and thicker!!

Awesome material!! Keep ‘em coming!

I Miss the weekly uploads ❤

Interesting results. where is the st Augustine video link from 4 years ago?

Still impressive how the roots developed going through the different products.

Got a little tropical storm coming your way we could sure use that here

Thanks for the experiment. I guess I'll have to order some sea kelp.

Really love these. I’m a huge fan!! Thanks

Try using a plant growth regulator like T-Nex plant growth regulator. Would like to see the root growth because that is the claim that they increase root growth.

I was hoping this was going to be a "Rain Dance for Manatee County" video.

Great video! I love seeing how certain products are supposed to affect the soil and the lawn. I'm glad you picked zoysia as your test subject. I have a partial zoysia lawn and I'm always looking for ways to help push zoysia growth because I want it to take over. Can you tell which product generated the most rhizomes/lateral spread of the zoysia?

This was a cool experiment. I don't think removing the bottom will change anything personally. Those pots will drain all excess out except for what stays in the bottom plate. Good to see that the products I bought don't work as well as claimed. I would have thought RGS would have done well since it's a root growth stimulant. Here in Colorado hydretain doesn't seem to help either but looks like it might be helpful for the roots. looks like I will only order sea-k from now on or just use water as someone else mentioned, it would be better if there were at least 2 samples per but this still gives us a basic idea of what can be expected

Great videos! Planted in what base layer? Thx

A few observations to make it a better experiment next time: - 16 ounces of mix is a lot. It isn’t necessarily helpful unless we are throwing down hard. - Have more than one pot for each variable. Maybe at least three. That seems like a lot of plants, but one plant for each variable is too small of a sample size. Looking forward to your second try.

Time for a collab with Project Farm, my friend. Talk about a dynamic duo.

Great video LNC!! Enjoyed the Mow & Threw down some Flagship that got delivered today 🙌🏼 🇺🇸 Spread the Freedom 🤠

Hey Al, so when's the follow up video going to come out? I'm really interested in this one!

Alan great experiment! Could you include mycorrhizae fungi as part of the next experiment and its impacts on the root/plant? Thanks!

My tall fescue is too hard to grow in Memphis area (hot summer). LOOKS great, everyone raves about it (most lawns are Bermuda and weeds in area). Besides mole tearing it up and Bermuda evading the heat does a number on it. So I renovate every fall and it takes hold and looks good from Oct to June.Then June to Sept it struggles. This year it is doing good but the Burmuda and MOLE really was bad... THINKING OF OVERSEEDING WITH ZOYSIA SEED ($$$$$). I put in Zoysia sod between curb and sidewalk last year. It is thriving and looks great. I could not do fescue there because it is a heat island between street and sidewalk. It is working. I could sod my 3000 sq-ft but don't want to spend the many many thousands. I understand growing zoysia from seed is next to impossible. I could put plugs in but.... I am tired. Ha ha. I have a Bermuda issue and the herbicides to target Bermuda are $$$$. My other option GIVE UP and LET BERMUDA ENVADE... it is free and seems to love my fescue. I am going to go after it one more year but I am tired of spending all the time and money to get it cherry then to have bermuda, moles and heat tear it up....

Looks like fun 😄

love these experiments!!!!

Regarding Green Pop, it’s 16-21-2 which is quite high in phosphorus (for root growth) plus reasonably high in nitrogen. There could be a few things at play here, firstly it’s a complete fertiliser so the plant has no incentive to go deep for nutrients, and secondly the high nitrogen content may cause the grass to prioritise its energy into above ground leaf growth rather than root growth. Perhaps another experiment with 2 or 3 pots using Green Pop and the same setup for another similar starter fertiliser? Also, a new setup using a zero-nitrogen fertiliser such as 0-21-2? Notwithstanding, a very interesting experiment 👍

Hummm … about out of biostim ….looks like I will replace RGS with SeaK. Looking forward to next test.

I wonder if the green pop didn't put down roots because everything it needed was poured right on the plant. It didn't need to root.

Rockin the jorts

Should I add vermiculite or sand to my hard compacted soil and what type of grass should I use its also full sun and I live in central California

Would the SeaK so the same with my KBG and most importantly would it strengthen the plant to help ward off fungus? Meaning an easier ability to power thru the rust fungus I have a problem with every year

Well, grass grows in the A zone of soil. I'm not surprised in the root structure

Can you twist the bottom drain caps on the plant pots and then they'll drain... IDK. Check.

I would like to know what to use to kill clover in cool season grass?

How about a pot with a combo of Sea Kelp and Starter Fert ?

Last time this test was done, the popular phrase “Look at those roots John Perry” was born.

This probably shows the benefit of deep and infrequent watering. with the pots holding water the roots sat still just as they would if your watering every day.

Where did you get them measuring cups?

Any follow up on this?

I'm curious how those trees are doing now 😂

Can you replace SeaK for the RGS in the Yard Mastery app program since it appears to be more effective?

Where did you get that 16oz from you put to each bucket?

allen why 16oz, would you ever see this high application rate anywhere? that area might see a fraction of that amount in a lawn application. I love the concept though and its a great test otherwise

Wait, so RGS doesn’t help grow roots as much as the others?? Why buy RGS then? I’m confused as to what it’s benefits would be

Add Essential Plus 1-0-1 to the next test and perhaps a deeper pot.

Now how do you get zoysia to spread faster

Does it have to be cooler temps to apply the Sea K?

Although I use it in conjunction with Humic, I’m pretty disappointed with the RGS - you’d think it would have been the star of the show.

Alllyn it’s hard to get into Facebook membership say pending for weeks. I don’t do any other social media barely Facebook. Should I put out the Dithiopyr next week now it’s 8/23/23 if temp drop in low 80’s for 3 days then back high again? I know your fesque cool season program say wait to temp start trending down late august to early September. Trying to beat out germination of POA my nemesis before winter. Just wait until early September when temp go towards low 80’s to high 70’s and stay there?

Did you sterilize each pot prior to planting?

One variably you could also test is Foliar Application for The Root Stimulators and fert. Do a spray bottle (Ace has "ACE Ultra Fine 24 oz Mist Sprayer") foliar app let it sit for 4 hrs and then water it in. Test would deviate at point of adding the products. Mist all of the non foliar items (including a "control" for the SeaK, Humic, RGS, and GreenePop) with only water. Then utilize mist sprayer to get an even coat of each product on all the leaves. Let sit for 4 hrs and then complete the experiment like above.

Hey Y'ALL

Maybe next test use that stuff Doc uses called Dirt Booster.

I was shocked with this . I knew the sea k would do good but I thought the 4 seasons would of blew the sea k out of the water.

Had the same results with GreenPOP. Ruined my st aug.

The quantity should match typical volume over time, not massive over application

Definitely look forward to seeing the retest. I just had some big palms installed and gave them some rgs thinking that would drive some quick root growth which would help with getting water in this crazy hot summer. (even with me watering like crazy, they will still struggle some I would imagine) But now I think I should buy some Sea K.

I think another sample with only fertilizer, such as 0-20-10.

How bout one that has a lil bit of all the products. I'm sure the results will be an insanely full container of grass and roots but why not

How's the Luba doing?