Humboldts Secret Starter Kit Pack | Indoor and Outdoor Plant Fertilizer and Hydroponic Nutrients | Base A & B, CalMag and Iron, Golden Tree, Flower Stacker, Plant Enzymes | Complete Garden System
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Humboldts Secret Starter Kit Pack | Indoor and Outdoor Plant Fertilizer and Hydroponic Nutrients | Base A & B, CalMag and Iron, Golden Tree, Flower Stacker, Plant Enzymes | Complete Garden System

Product ID: 47409987
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Details

  • Brand
    Humboldts
  • Item Weight
    16 Ounces
  • Item Form
    Liquid
  • Liquid Volume
    152 Fluid
  • Specific Uses For Product
    Hydroponics
🌱Feeds up to 150 gallons nutrient solution
💧152 fl oz liquid volume
⚖️Balanced NPK + CalMag + Iron formula

Description

🌿 Unlock your garden’s secret weapon for lush, unstoppable growth!

  • BULK MIX EFFICIENCY - Concentrated formulas stretch to 125-150 gallons, maximizing your garden’s potential.
  • ALL IN ONE GROWTH POWERHOUSE - Six essential nutrients from seedling to harvest for unstoppable plant vitality.
  • CONSISTENT FULL CYCLE SUPPORT - Reliable nutrition through vegetative and flowering stages for steady, robust growth.
  • EFFORTLESS INDOOR OUTDOOR USE - Simplify your routine with easy-to-mix liquids that deliver vibrant, healthy plants.
  • VERSATILE HYDRO SOIL FRIENDLY - Perfectly formulated for hydroponics, potting soil, or coco coir—grow anywhere, anytime.

The Humboldts Secret Starter Kit Pack is a comprehensive liquid nutrient system containing Base A & B, CalMag & Iron, Golden Tree, Flower Stacker, and Plant Enzymes. Designed for both indoor and outdoor use, it supports all growth phases with balanced macro and micronutrients, suitable for hydroponics, soil, and coco coir. This 152 fl oz kit mixes easily to feed up to 150 gallons of nutrient solution, delivering consistent, measurable results for professional and hobbyist growers alike.

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Specifications

Liquid Volume152 Fluid Ounces
Item Weight16 Ounces
Mixing Ratio1:1
Specific Uses For ProductHydroponics,Potting
Target SpeciesPlants
CoverageCovers a larger area or more plants with bulk purchases
Item FormLiquid

Have a Question? See What Others Asked

Why is it not for sale in california ? 😭
Is it organic?
Is this a petro chemical salt based solution
Do you think that they’re adding the wrong amount of nutrients that’s why it’s killing some plants?

Reviews

C**R

Tree/Slow growing plants approved

Tree food approved. I was filled with a lot of fear because i work with plant soil and data and they d honestly dont share a ton of data to the public but i went for it and changed all nutrients besides a few base chemicals and for the most part they are killing it and not growing funny either and thats why people dont bonsai with chemical's and nutrients like this but I have been doing a lot of work and research with less of the fast flowering "short life" plants and have been giving more focus on long lastingslow growing plants and trees (bonsai) and what effects soil life and proper nutrient management has on them to find ways to save the soil strength and microbiome making stronger, healthier and higher yeilds. It is very difficult as a bonsai and plant guy is i know that they want to grow faster and bigger but typically its to much and the tree will look not as good and willl look good/big in the wrong way so to find a product not directed to only weed or flowers and can my plants can sustained all year use with proper measurements and nutrient management (depending on the plant) this is really one of the best set of mixes out there and i could show you some data of some of my plant growth within just the first 2 weeks of growth after i started my new nutrient cycle i couldnt belive some of my plants it seamed unbelievable but now they have slowed the growth (from bad growth to even growth they just needed time to get a little crazy. Things are much more prepositional now that i gave them some time. I like to give additional pure nutrients and not just premixs you mix haha but thats way to much for anyone to dedicate there time to unless they really love plants and thats why i love this kit for making gallons and all my soil based plants get some food once a week changing only by age or time of year and for most of my plants they all get this and its a simple way to get to know nutrients a little more plus this is high quality stuff, my plants love it and the early season data looked really good besides one juniper i think may have ODed and has been brown all season so be carful less is more at first, but its really simple and worth the price for short and long life plants also. I even use a diluted mix for my house plants not in the data but it works so good for more gallons of water worth of mix it takes lightwork of the process and i dont need a scales and it really is a pretty good multipurpose feed to take the average grower a step up a level. I would say Professional quality i would stick to making or buying what you have. This helps me manage the large number of plants that i need to feed during the summer with a little less effort so this works for me perfectly. Id like to see some microbes, soil building products or even pure nutrients or atleast try and or do a study....I can show you data....The future is here dont be late. I would make the full switch to Humboldt secrets but the lack of meaningful products is not enough for me to do that yet and thats alright because i think they are good and one of the best for price/quality products out there but not the best and lack of product really holds them back. but if plants are not youre life or way of life this is by far one of the best options. Even just Base A and B would do great if youre looking for just a taste

B**N

Good products and reasonable prices

I’m very pleased with the results after growing with the products. Everything you need in one package and reasonably priced.Plant health and growth worked excellent producing nice crops. I didn’t write the review until I had used the product for two grows since I did know how well it would work. Quality products!

E**N

Good

Great product, my plant is healthy and strong💪

A**R

Very good

I am not a skilled grower and have failed miserably past few summers. I found this and thought why not try it, and am I glad I did. Follow instructions and keep a close eye plants maintaing and such is what I did and my girls are ginormous. I am so very pleased

A**N

Nearly foolproof, but you will need some extras imo.

The golden tree smells like rotten eggs, badly, so use that outside. The rest don't smell like flowers either do I'd just stick to mixing it outdoors but, of course, store it indoors in a cool, dry place.This kit doesn't come with the Tree Trunk or the Sweet and Sticky additives which I recommend you add to this purchase as well as getting yourself a syringe that measures in ml up to at least 10ml to make it easier to follow the directions as they are in ml and it's a lot less messy and smelly. Just be sure to suck up and shoot out a little water between each nutrient and never mix raw nutrients.They do leave out that you should be watering with normal water at least once between feedings, but if your buying this kind of kit chances are you already know that. Start lower than they recommend, I'd start with half as much, and work up from there after you see how your plant reacts. Make sure you have that pH and PPM tester and measure after it's has been mixed throughout and has settled for about 5 mins. Also, record EVERYTHING you do in a journal. Measurements, water amount, water schedule, problems, etc etc... We all know our memories are not to be trusted. The pH of your liquid should be between 5.5 and 6.5, I shoot for 6 myself, and the PPM will vary according to your particular plant but generally around 800 to begin with and peaking at around 1500. This can only be known through experience, if your lacking that just keep it around 800-1000 and you'll be fine I'm sure. I'm an idiot and I make it work...TL:DRYou will need the basics of course (tent, light, dirt, pot, and quality water), but adding these things to this kit will help a ton, all sold right here on Amazon, but remember price reflects quality and accuracy usually. Read reviews.- pH tester (liquid tester)- PPM tester (liquid as well)- syringe that measures in ml to at least 10ml but size isn't as important as increments, make sure you can draw 3.5ml exactly, for example. (syringes work best with less mess, and some of these nutrients smell bad)- Hombolts Secret additive "Tree Trunk- Hombolts Secret additive "Sweet and Sticky" (both round out a complete start to finish system that works great and by following the same brand you know it is compatible and compliments each other well)

A**K

Great product for quality return

Best stuff out there for seeds, early, mid stage and hearty growth. Tomatoes, peppers, hydrangea, Indica, mountain laurel, and bonsai. Live this stuff. Last a long while on indoor gardening.

A**2

Great stuff

Always use the best of the best and this stuff is it. Please send customers email if order isn’t being shipped in two shipments. Caused a lot of anxiety my ladies are on a schedule thanks for your awesome product at a good sale price this time

A**R

Can't go wrong

Love it. Ec and ppm are on point every time I check. I've only fed mine twice since I've gotten the products. Wow what a difference i wished I would've went with this in the first place. I also ordered the sweet and sticky which is separate from this pack. I'd strongly recommend purchasing it. I will use humboldts nutrients everytime from here on out. There's just no other way to go. 1st pic is after 2 days of feed. 2nd is not using humboldt.

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TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Humboldts Secret Starter Kit Pack Indoor And Outdoor Plant Fertilizer | Desertcart GB