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🌿 Unlock the secret to unstoppable growth—your plants will thank you!
Humboldts Secret Golden Tree is a professional-grade, all-in-one organic additive designed to boost plant nutrition and growth. This 2-ounce concentrate makes up to 55 gallons of solution, compatible with every growing method from soil to hydroponics. Infused with kelp, carbs, and minerals, it enhances nutrient uptake, stress tolerance, and overall plant vitality for vegetables, flowers, fruits, lawns, and more.



















| ASIN | B00T16TY6A |
| Best Sellers Rank | #28,727 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #876 in Garden Fertilizers |
| Brand | Humboldts Secret |
| Brand Name | Humboldts Secret |
| Coverage | 55 gallons of plants |
| Customer Reviews | 4.5 out of 5 stars 4,543 Reviews |
| Item Form | Liquid |
| Item Weight | 4 ounces |
| Liquid Volume | 60 ml |
| Manufacturer | Humboldts Secret |
| Mixing Ratio | Volume Ratio |
| Model Number | 2 Ounce |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 2 ounce |
| Specific Uses For Product | Hydroponics,Plant Food |
| Target Species | plants, trees, flowers, bushes |
| UPC | 791154099995 |
| Unit Count | 2 Fluid Ounces |
| Warranty Description | No warranty |
T**N
I had to write a review , this stuff works !
This stuff is incredible, I don’t write reviews often but dayum this stuff works. Soon as you smell it , you know this stuff means business
L**T
Not bad! Using it on my flower garden
Not bad! Using it on my flower garden. The annuals....impatien, petunia, viola showed faster growth and more vibrant colors in 3 days after applying 1/2 teaspoon per gallon. Careful on the marigold though. They burned with the same mix, but coming back strong on day 6. Will mix 1/4 teaspoon per gallon on those for the next feeding. The perrenials...columbine, lavender, snap dragon, begonia, lithodora, allysum, asian lily and geranium took about 5 days to show very minor improvement. None burned with the 1/2 teaspoon mix but will go with 1/4 teaspoon mix for next feeding on those to just play it safe. Tested on one of 6 different variety's of hybrid tea bare root roses that have been in the ground since early February and this thing has exploded in the best way in 5 days. WOW! It was the weakest looking of the 6 and it is now overtaking the others. Will stick with the 1/2 teaspoon mix on the bare root roses until after I see how a mature, full sized rose bush reacts to my feeding it this morning the full teaspoon mix. My 3 tomatoes, a yellow heirloom cherry, San Marzano heirloom and sweet red cherry liked the 1/2 teaspoon mix 6 days ago and growing faster, fuller since. Strawberry's not good with my test of a 1/2 teasppon mix on 1 of 4. It burned within a day and a half and is now dead in 3 days. No Golden Tree on my strawberry's until I get some feedback. Bummer! My cantaloupe took off within 3 days of a 1/2 teaspoon mix on it and will be applying same on a jalapeno, bell pepper, mint and chive for thier first feeding's tomorrow. All in all...I'm very happy. I like the organic factor and the results have been noticeably remarkable, strawberry aside. Now' if Humboldt figured out a way to put some ingredient in there to defeat the gohers?....I'd have the best of both worlds.
J**T
Excellent addition to my fertilizing program!
I will start off by saying I bought a 2 ounce of this plant food over a year ago and stashed it to use in my garden this year. Well, not only did it keep extremely well it also is a miracle for my garden! For the first month of my garden, I used my previous fertilization program but didn't see much growth in my plants. The beginning of the second month I decided I was going to use this plant food in addition to my fertilizer plan. It has amazing results! Not only do I use it on my tomato plants, my peppers, cucumbers, watermelon, cantaloupe, lettuce and strawberries, it also works wonders on all the rest of my plants including my fresh herb garden and flowering plants! My garden and yard have so much color now it's unbelievable, and by taking pictures every week of my garden's progress the difference is astounding. Recently my cantaloupe and cucumber plants ended up being a target for rabbits, but even with doses of this stuff every two weeks these plants have made a remarkable recovery! Because of the expanse of all my plants, I just placed my next order for this amazing fertilizer and can't wait to continue using it! Also: my fertilizer is a mix of kelp, fish, and myco tea in addition to use of Golden Tree. I also regularly place a mix of compost on the soil for additional nutrients, support and moisture control which is a blend of grass clipping, coffee grinds and fresh mulch.
I**E
Shhh, it's a secret.
This product seems to work and there are many reviews out on the web in the cannabis growing community that confirm the effectiveness of HGT. If it works for them, that says a lot because those folks are serious about what they use and test products religiously. Anyway, I monitor my flowers and veggies daily and after applying a 1/2 tsp per gallon I had noticeable growth acceleration and flowers pop. One plant that was looking wilted absolutely stood up and began growing again. I would definitely add this product to my organic regimen based on the early results, but a larger sample size would be helpful. I do wish I knew more about what was in this ingredient bottle as I have been putting it on my veggies, but a secret is a secret. I suspect it is made up of some combo of growth hormones, Triacontanol, fulvic acid and B vitamins, but that is just a guess. Yes, Humboldt Golden Tree does offer a free 2 ounce bottle for a review, but they don't say anything about a positive review, just a review. To me, that's just damn smart business. For $10.00, I think it's totally worth giving Humbolts Golden Tree a shot and adding it to your bi-weekly watering. I currently use this, Aerated Compost tea, Liquid Kelp, Epsoma Plant Tone and Azomite. My garden is looking great and there is still a lot of summer left. Happy Growing...
J**Z
Hugely successful grows with Humboldt's Secret
I use the whole Humboldt's Secret nutrient line on plants grown indoors in tents with automated lighting, circulation and exhaust fans and manual feeding, watering, temperature and humidity controls. My flowers are cup quality, every time. Top quality nutrients, broad spectrum, easy schedule and dosing and super reasonable compared to other brands with comparable offerings. On average, I'd say my return on investment in yield:nutrient is about 50:1. Hard to argue that. I'm a believer.
M**N
Wow
In 50 yrs experience I’ve never seen anything like it. Stunning results. Worth every penny.
T**A
Smell like sewage, works like magic
This product has a very powerful sewage smell - use gloves and open it in a ventilated space. You probably won't want to use it in any area that can transfer air to the rest of your house. I tried out the base A+B nutrients in my hydroponic garden. They work well when you add CalMag, but the base product suggested to use this along with the base nutrients, so I decided to try it out. The smell hit me the second I removed the cap, and got nauseatingly worse once I punctured the foil seal. The smell lingered for several hours in to area I opened it in. The product also made my hydroponic basin smell like sewage for a couple of days. The smell goes away once the plants have absorbed to product. I only added it to one basin in case it had negative effects on my plants. The plants I used it on have had their growth turbocharged - they are visibly catching up to plants that are a couple of weeks older.
K**N
When I use it on the early VEG I think it has increased the growth time speed like 10%-20%. And if I keep used the GT ...
I have been used the GT for my girls since 3-4months ago within hydro DND, I can't really tell it dose work or it doesn't . I will tell you why later LOL. When I use it on the early VEG I think it has increased the growth time speed like 10%-20% . And if I keep used the GT after I turned 12/12, I would say it makes my girl growth wider instead just taller if you know what I mean . About how GT works on flowering , I can't hardly tell , coz after I compare one within/without , Their size and weight were mostly the same under the same PH , light , air . But the one within GT might stop growing or I should it became mature faster . It has both good and bad sides , you will get what I say if you are a grower as well . The roots : I have been noticed it also effects the roots , you can tell by the eye they are heather , ESP at the end (7-8weeks ). After months work I found this product is not 100% useless if you can use it right ( timing and amounts ). That how much it says on the direction is way too much . And I think we should mix them with water before we use for better purpose . After all I want to say I will rather keep my old recipe instead this GT, coz they old way looks much more effects . It will be GRO MIRCO BOOM -Voodoo B52 Greatwhite Bigbud . It cost much more but you will get what you pay for . I will try to keep growing with the GT . If I found the way to grow with it , I will update the review in months .
H**M
20yr grower and Iam stunned by this stuff.
Ok, so Iam old school. I run House & Garden nutes, the whole line-up from roots to top shooter and everything in between. As most of you who use an entire line of any given company knows it can get very expensive with all the "extras" to fill any gaps in the basic nutrient regime. I have been growing for over 20 yrs now and have had great results along the way. Every now and again you get a certain strain that no matter what you do seems to have a tougher time thriving during your grow. It might not like the soil mix or not like being in coco or it's missing something to help it reach its maximum potential. My current grow (4 weeks into veg) is one of those strains. Difficult to keep happy. Leafs always drooping, colour a little bit off. Slower growth than normal. I came across an article about Golden Tree. Sounded way to good to be true, get rid of all the extras I add at every feeding and replace that with 2ml of this stuff per gal? Lol. Ok right. Then I read the reviews on here and there almost all glowing reviews. So I thought for 20 bucks and free prime shipping hmmmm why not give it a shot? I just used my base nutes and only 2ml of golden tree per gal And increased my ppm to about 900-950. I was away for work for about a day and a half, when I got home and opened the grow room door I was in utter disbelief. My plants not only looked EXTREMELY perky and a lush lush green but I swear they added at least 2"-3" of growth and spread way out horizontally. Any deficiencies they were experiencing before were completely taken care of. I mean this strain that I have grown once before looked as good or even better than my best "dialled in" grow. Ever. I can't wait to try it on the strains I know I can grow with great results already! Iam not getting paid to say this. Iam not getting free product. Nothing. I switched to the flowering stage about a week ago and can't believe the jump the plants have made into flowering. For 20 dollars try it for yourself. We all know how much is spent on this "hobby" a 20 dollar investment is a drop in the bucket. I will purchase a larger supply when I need it and will continue to use this product religiously. iam so happy I stumbled across Golden Tree. But my girls are even happier!! 😁 Thanks Golden Tree You have a customer for life!!
8**8
It really is as good as they say!
My 10+ year old roses had barely flowered in the 2 years since being transplanted from the previous house. I saw this product on Amazon in "suggested items". The reviews seemed almost too good to be true... Rose #1 - looked "dead but alive" with no sign of flowers for 2 years - this year full of life, new growth, as many flowers as best year previously Rose #2 - was alive and well but just a couple of flowers each year recently - this year new growth and more flowers than seen before Rose #3 - was alive and well (and the largest overall) but had less flowers than before the move - this year there was more new growth and more flowers than I would have thought possible - the plant was barely able to support the sheer number of buds/flowers For small plants, the manufacturer appears to advise 2ml per US gallon (3.785 litres) - for those outside the USA this is equivalent to 0.528ml per litre For large plants the manufacturer appears to advise 5ml per US gallon (3.785 litres) - for those outside the USA this is equivalent to 1.321ml per litre For the roses, I had success using 1ml per litre (for easy measuring)... but plan to use the full 1.321ml/litre in future (60ml - the smallest bottle - will make approx 133 litres for small plants or approx 45 litres for large plants) Overall i'm very happy - slightly amazed - and will certainly buy this again
J**N
EFECTIVO
Tengo varios arces japoneses afectados de verticillium, pensaba que terminarían muriendo, los he tratado con este producto y en una semana han vuelto a brotar, es un hongo que no desaparecerá, pero al menos los arboles parece que sobrevivirán. Es un producto caro, pero considero que efectivo. Por otro lado el vendedor debería indicar el tamaño del envase y la cantidad incluida en el mismo.
S**N
Tomate
Tomate
A**O
Perfecto
Compre este producto antes y olía muy mal. Este no huele nada mal así que estoy deseando usarlo en mi jardín ya que muchas personas dicen maravillas de este producto. El envío llego perfecto y puntual como siempre.
Trustpilot
3 weeks ago
5 days ago