It maybe early but it seems to make really stout thick flowers. It makes rose buds gigantic when applied right.
I can only imagine what it does for other flowers. So far so great. I’m impressed in such a short amount of time that it can do this but it’s hard to tell if it’s this or the cal mag or silica or a combination of all.
Good stuff if it doesn’t kill your plants and it doesn’t .
Enjoy fast, free delivery, exclusive deals, and award-winning movies & TV shows with Prime
Try Prime
and start saving today with fast, free delivery
Additional Details
Small Business
Shop products from small business brands sold in Amazon’s store. Discover more about the small businesses partnering with Amazon and Amazon’s commitment to empowering them.
Small Business
This product is from a small business brand. Support small.
Consider a similar item
Amazon's Choice
$35.74 ($0.28/Fl Oz)
Climate Pledge Friendly
Add a debit or credit card to save time when you check out
Convenient and secure with 2 clicks. Add your card
Make it a bundle
We found 1 bundle with this item:
Humboldts Secret Flower Stacker – Best Flowering Formula for Bigger Harvests - Flowering Plant Food – Nutrient System for Potting Soil for Indoor & Outdoor Plants - 2.5 Gallons
Page 1 of 1Start overPage 1 of 1
Frequently bought together
$225.00 ($0.70/Fl Oz)
Get it as soon as Friday, May 17
Only 10 left in stock - order soon.
Total price:
To see our price, add these items to your cart.
Choose items to buy together.
Top rated similar items
Page 1 of 1 Start overPage 1 of 1
From the brand
-
With over 10 years of demonstrated excellence, Humboldts Secret has emerged as one of the major plant nutrient manufacturers and suppliers to the hydroponic/agriculture community in the United States. Become a friend of ours today!
-
-
-
-
-
-
-
Compare with similar items
This Item  Humboldts Secret Flower Stacker – Best Flowering Formula for Bigger Harvests - Flowering Plant Food – Nutrient System for Potting Soil for Indoor & Outdoor Plants - 2.5 Gallons |  |  |  | |  | |
| Price | $225.00 | $15.98 | $23.97 | $44.97 | $99.98 | $16.98 |
| Delivery | Get it as soon as Friday, May 17 | Get it as soon as Wednesday, May 15 | Get it as soon as Wednesday, May 15 | Get it as soon as Wednesday, May 15 | Get it as soon as Wednesday, May 15 | Get it as soon as Thursday, May 16 |
| Customer Ratings | ||||||
| Easy to use | ||||||
| Value for money | ||||||
| Flavor | ||||||
| Scent | ||||||
| Sold By | Green Supplies | Green Supplies | Green Supplies | Green Supplies | Green Supplies | Green Supplies |
| weight | — | 2 ounces | 8 ounces | 32 ounces | — | 8 ounces |
| form | Liquid | Liquid | Liquid | Liquid | Liquid | Liquid |
| coverage | 30 | Medium | Medium | Medium | 1 | Medium |
| liquid volume | 2.5 gallons | 2 fluid ounces | 16 fluid ounces | 2 quarts | 1 gallons | 8 fluid ounces |
| specific uses | Hydroponic,Plant Food | Hydroponics,Plant Food | Hydroponics | Hydroponics | Hydroponic,Plant Food | Hydroponic,Plant Food,Potting |
Reviews with images
It works!!!
If you want dense nugs use this for 6 outta 10 weeks of flower.(wk 1,2,3,4,5,6) then flush with water till runs clean. Works great with foxfarm grow big and bloom. Get your plants use to it with small amounts then add as much as you can 😂😂😂 just watch for leave burning. Really a great product. I would love to run a grown with all Humboldt's secret products. Hmu for product testing.
Top reviews from the United States
There was a problem filtering reviews right now. Please try again later.
Reviewed in the United States on January 30, 2024
Size: 8 OunceVerified Purchase
If you want dense nugs use this for 6 outta 10 weeks of flower.(wk 1,2,3,4,5,6) then flush with water till runs clean. Works great with foxfarm grow big and bloom. Get your plants use to it with small amounts then add as much as you can 😂😂😂 just watch for leave burning. Really a great product. I would love to run a grown with all Humboldt's secret products. Hmu for product testing.
Images in this review
Reviewed in the United States on January 1, 2021
How is this evening happening? These pictures were taken January 1,2021 and according to my wife are about 11 weeks old. For the last three or four weeks the daytime high temperature has 68°. And at night of about 45° . And the plants seem to love it.
Look how tight the bud blossoms are, it’s like one big forearm. I will bring it in soon put it under my grow lights and see how it likes that environment. The temperature is a low of about 65°F, and a high of 75°F. It’s flowing season here with 12 hour days similar to what the bud was getting outdoors.
I will use flowers shield Humboldt flower shield to get any pest or mites or anything that might be on it off of it before I bring it inside grow room
Also in the garden we have passion fruit that is 35’ long by 12’ wide. It took over a clothes line and outdoor clothes away but I put number 10 copper wire honored to support the passion fruit tree. We have a minature orange trees to produces grap fruit sized oranges when it wants to. The lime trees love the sweet and sticky as well. I want to see how good they’re going to taste. Ever fruit tree loves Miracle grow to grow foliage nice and green the fruit as well but that was in the summer. should’ve taken a picture of it I have a lot of little baby lemons and I limes. Once the flowers turn into small fruit the trees get Humboldt stacker. We harvest passion fruit pretty much every few days for a couple of months or longer. I forgot I started with a 4 ounce bottle of the stacker and sweet and sticky by Humboldt. For my cannabis plant growing indoors just a couple of plants. And I realized I started buying the larger bottles because it makes our fruit trees produce really delicious fruit. It might seem like a lot of money at first but the stuff is very concentrated and it goes along way.
Our passion fruit already has blossoms were still using miracle grow. I still have Humboldt stacker and sweet and sticky for this year I’ll probably buy some more because it’s worth it it’s very concentrated.
Size: 8 OunceVerified Purchase
Humboldt Sweet and Sticky and Stacker work really well together.
Reviewed in the United States on January 1, 2021
Daddy like!Reviewed in the United States on January 1, 2021
How is this evening happening? These pictures were taken January 1,2021 and according to my wife are about 11 weeks old. For the last three or four weeks the daytime high temperature has 68°. And at night of about 45° . And the plants seem to love it.
Look how tight the bud blossoms are, it’s like one big forearm. I will bring it in soon put it under my grow lights and see how it likes that environment. The temperature is a low of about 65°F, and a high of 75°F. It’s flowing season here with 12 hour days similar to what the bud was getting outdoors.
I will use flowers shield Humboldt flower shield to get any pest or mites or anything that might be on it off of it before I bring it inside grow room
Also in the garden we have passion fruit that is 35’ long by 12’ wide. It took over a clothes line and outdoor clothes away but I put number 10 copper wire honored to support the passion fruit tree. We have a minature orange trees to produces grap fruit sized oranges when it wants to. The lime trees love the sweet and sticky as well. I want to see how good they’re going to taste. Ever fruit tree loves Miracle grow to grow foliage nice and green the fruit as well but that was in the summer. should’ve taken a picture of it I have a lot of little baby lemons and I limes. Once the flowers turn into small fruit the trees get Humboldt stacker. We harvest passion fruit pretty much every few days for a couple of months or longer. I forgot I started with a 4 ounce bottle of the stacker and sweet and sticky by Humboldt. For my cannabis plant growing indoors just a couple of plants. And I realized I started buying the larger bottles because it makes our fruit trees produce really delicious fruit. It might seem like a lot of money at first but the stuff is very concentrated and it goes along way.
Our passion fruit already has blossoms were still using miracle grow. I still have Humboldt stacker and sweet and sticky for this year I’ll probably buy some more because it’s worth it it’s very concentrated.
Images in this review
