6 MONTH Money-Back Guarantee

10% off $250+, 15% off $1000+

Free Shipping on US Domestic orders $75+

Starter Kit XL

97 reviews
Regular price
$579.20
Sale price
$579.20
Regular price
$220.77
Sold out
translation missing: en.products.product.unit_price_label
translation missing: en.general.accessibility.unit_price_separator 

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
4.8 Based on 97 Reviews
5 ★
90% 
87
4 ★
8% 
8
3 ★
0% 
0
2 ★
1% 
1
1 ★
1% 
1
Customer Photos
Write a Review

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
DG
09/13/2022
David G.
United States

Start Kit 2

Products seem to be working wonderful! Only complaint is one of the bottles/caps does not seal fully so it leaks when attempting to shake contents before use.

JJ
08/12/2022
Julio J.
United States United States

They are too small

They was too small bottles and the flower stacker came repeated, one small and other li the normal size.

LC
07/28/2022
Lennohn C.
United States United States

Angry

I purchased my starter kit xl.. and my package was damaged, I have yet to use my products as I am wait for the claims process between the company and ups… but will be back once they finally arrive with an update

CE
07/23/2022
Carla E.
United States United States

I didn't get to use it yet because I didn't receive all of the products yet it is not complete as yet

SR
07/19/2022
Samuel R.
United States United States

New grower

I use fox farms for a the 1st month then add the nutrients and I am nursing a bush on my roof. With little added nutrients. Barely got 2 Oz. The one plant with humbolt is bigger and has more leaves than anything I've grown before. 150 for nutrients is amazing too.to be frank you only need an increase if am extra o to get the money back . Minimum expecting 4 Oz and that's with 2 months left . If you are scared of nutrients add one serving following the Minimum and toss that in 2 o3 3 gallon jug. Start slow