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Starter Kit XL

89 reviews
Regular price
$579.20
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$579.20
Regular price
$220.77
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Making Growing Simple, Exciting, and Easier to Succeed At

Our Starter Kit XL comes with a 1 Gallon Base A & B Set, 1 Gallon Flower Stacker, 1 Gallon Sweet & Sticky, 1 Gallon Tree Trunk, 1 Gallon CalMag & Iron, 1 Quart of Golden Tree and 1 Quart of Plant Enzymes.

Product Information

COMPLETE NUTRIENT AND ADDITIVE SETUP: Our starter kit includes all of the essentials and additives you need to start your growing journey. Pack includes: Grow & Bloom Base A & B, Golden Tree, Flower Stacker, CalMag & Iron, and Plant Enzymes.

MAKES 500-600 GALLONS OF SOLUTION: Enjoy between 500 and 600 gallons of premium-quality nutrient solution to provide proper care and food for potting soil for indoor plants and outdoor plants.

COMPATIBLE IN ALL GROW MEDIUMS: Perfectly suited for use in all growing mediums. Whether it’s gravel, sand, coco mix, or hydroponics, Humboldts Secret Starter Kit will help your plants grow with minimal effort!

MADE WITH THE FINEST INGREDIENTS: All Humboldts Secret products are made with quality ingredients. Our Starter Kit gives you all of the essential nutrients as well as some additional supplements to start your growing journey!

MADE IN THE USA: Each one of our Humboldts Secret products is proudly made in the USA using quality ingredients to ensure an optimal indoor plant fertilizer and healthy plants.

“Our Starter Kit XL comes with:

- 1 Gallon Base A & B Set

- 1 Gallon Flower Stacker

- 1 Gallon Sweet & Sticky

- 1 Gallon Tree Trunk

- 1 Gallon CalMag & Iron

- 1 Quart of Golden Tree

- 1 Quart of Plant Enzymes “

Burrito Pepper Timelape

568% Increase using HSS Nutrients

We are confident that you will be pleased with your product and offer a 6 month 100% satisfaction guarantee.

Refer to our return policy for full terms for the satisfaction guarantee.

Frequently Asked Questions

No! Humboldts Secret Supplies Starter Kit can be used in all grow mediums including soil, hydroponic systems, indoor plants, outdoor gardens, tower gardens and more!

Our Starter Kit XL will make between 500 and 600 gallons of nutrient solution.

Honestly, no! You need at minimum Base A&B plus Golden Tree to have a successful and healthy grow. Our additional additives are for use at your discretion, or are needed for certain growing mediums and hydroponic systems. We encourage you to play around with what works for you!

YES! All of our nutrients are meant to be used together, and can all be combined into the same gallon of water. Just remember to never combine nutrients together in their concentrated state to avoid nutrient lock out.

Customer Feedback

Don’t just take our word for it..

Rated by hundreds of happy growers

Grow bigger plants in less time without struggle

Get the Startaer Kit for only $170.77 $99.99

Each Starter Kit Includes:

  • World's Best Base Nutrient System Grow & Bloom Base A and B (1/4 Gallon of Each)
  • Golden Tree (1/8 Gallon)
  • Flower Stacker (1/4 Gallon)
  • CalMag & Iron (1/4 Gallon)
  • Plant Enzymes (8 Ounces)
Customer Reviews
4.9 Based on 89 Reviews
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Filter Reviews:
DH
05/10/2022
David H.
United States

Great product, POOR CUSTOMER SERVICE

I have been using HSN for over 2 yrs now and it is ABSOLUTELY AMAZING!! Have phenomenal results. My last 2 orders have had issues with shipping, I understand once out of company hands not much you can do on the other hand who you ship with is. When I reached out to HSS about the issues, nothing was done other than "well it is on its way" is all I got!! A returning customer of over 2 years and this is how I was treated. I am in the process of finding another nutrient, one I can get and with a company that cares about their customers!!

DM
05/02/2022
Daniel M.
United States United States

The Best of The Best

I have been using Humboldt Secret now for two growing seasons. My first was outdoors and my second was indoors. My plants have never been healthier. Beautiful lush deep greens with flowers that burst with color, vibrance, and aroma. I use the complete line including Flower Stacker and Sweet and Sticky. I could not be more pleased with the complete nutrient regime. Thank you for producing no nonsense quality nutrients for my girls.

TL
04/08/2022
Travis L.
United States United States

Literally the best.

Excellent products, amazing customer service, fast shipping..just a great company! We LOVE!

AS
03/30/2022
andrew s.
United States United States

The best!!!

Absolutely love the brand! They are stuck with me for life!! Thanks for such a great product!

PK
02/09/2022
Penny K.
United States United States

At this point in time my review can only be based on the delivery. I have not harvested.

The item arrived quickly! I have been using it and the present results are good, the real truth will be with the harvest. I previously used the starter kit #1 and was happy, so I thought I would try the step up. I had to go online to get the feeding schedule for the added two nutrients for the kit #2 a bit inconvenient and it doesn't print well unless printed in black and white versus the instructions being on the box. I am anxious to see if there will be a difference!