Introducing the Stash Blend Premium Plant Additive: Maximize Your Plant's Potential
What is Stash Blend
Unlock the true potential of your plants with our Stash Blend Premium Plant Additive. Specially formulated to supercharge your gardening efforts by one of the nation's leading nutrient formulation chemists, along with the experienced team of home growers that make up the From the Stash podcast, this exceptional blend combines nature's finest ingredients to give your plants the essential nutrients they need for optimal growth and health.
NPK Powerhouse: Harness the Benefits of Corn-steep Liquor
At the heart of our Stash Blend Premium Plant Additive lies the powerful corn-steep liquor. As a rich source of essential nutrients, including nitrogen, phosphorus, and potassium (NPK), corn-steep liquor provides a robust foundation for healthy plant development. Give your plants the advantage they deserve with this potent NPK source, ensuring they receive the perfect balance of nutrients for thriving growth.
Unlock the Power of the Sea: Seaweed Powder for Potassium Enrichment
We've harnessed the ocean's bounty to enrich our Stash Blend with seaweed powder. Derived from Ascophylum nodosum and combined with potassium hydroxide, this seaweed extract acts as a natural potassium (K) source. Fuel your plants with the goodness of the sea, providing them with the necessary nutrients for strong root development and improved overall plant vigor.
Unleash the Magic of the Earth: Humic Acid for Enhanced Nutrient Uptake
Enhance your plant's nutrient uptake with the inclusion of humic acid derived from Leonardite. Although not accepted as a potassium source in most states, humic acid plays a vital role in improving soil structure, promoting nutrient retention, and maximizing plant nutrient absorption. By including this valuable ingredient in our Stash Blend Premium Plant Additive, we ensure that your plants have every advantage to thrive and flourish.
Harness the Power of Symbiosis: Mycorrhizae for Optimal Root Health
In our Stash Blend Premium Plant Additive, we utilize mycorrhizae, specifically endo species, to establish a beneficial symbiotic relationship between your plants and soil. These mycorrhizal fungi form a mutually beneficial bond with plant roots, enhancing nutrient uptake, water absorption, and overall plant health. By including this remarkable ingredient, we empower your plants to reach their full potential and achieve extraordinary results.
Promoting a Microbial Paradise: Bacteria for Soil Vitality
Our Stash Blend Premium Plant Additive is enriched with a carefully selected combination of four beneficial bacterial species. Lab-tested and proven, these bacteria work in harmony with your plants to create a thriving microbial ecosystem in the soil. By stimulating nutrient cycling, breaking down organic matter, and suppressing harmful pathogens, these bacteria play a pivotal role in promoting soil vitality and ensuring your plants thrive in a healthy environment.
Unlock the Benefits of Soluble Silicon: Strengthen Your Plants' Defense
We've carefully incorporated soluble silicon dioxide into our Stash Blend Premium Plant Additive, ensuring your plants receive the numerous benefits of silicon without compromising compliance with state regulations. Silicon strengthens cell walls, improves resistance to pests and diseases, enhances nutrient uptake, and ultimately fortifies your plants' defense mechanisms. Elevate your plants' natural resilience with this vital ingredient.
Revolutionize your gardening experience with our Stash Blend Premium Plant Additive. Unlock the potential of your plants, promote robust growth, and achieve exceptional results. Give your plants the competitive edge they deserve and order your Stash Blend Premium Plant Additive today!
An Important Note: The Stash Blend Nutrient can have a tendency to clump up, that's okay! Break up the powder and it will still work the same. We recommend you keep the product in a cool, dry place so you can keep any clumping to a minimum.
2-YEAR SHELF LIFE WHEN STORED IN A COOL, DRY PLACE AWAY FROM DIRECT SUNLIGHT.
Directions: Mix 1/2 to 1 TSP per gallon of water.
Add this last when mixing with a nutrient solution.
NPK: 2-1-5
Guaranteed Analysis
Total Nitrogen (N)......................................... 2.0%
2.0% Water Soluble Nitrogen
Available Phosphate (P2O5)....................... 1.0%
Information regarding the contents and levels of metals in this product is available on the Internet at http://www.aapfco.org/metals.html
Guaranteed By: GROWERS HOUSE
Address: 3635 E. 34th St. Tucson, Arizona 85713
Your Happy Hydro Shipping Experience
We ship fast from Buffalo, NY. Most orders land at your door in 3-5 business days. Free standard shipping on orders $49+, plain-box packaging, and real humans ready to help if anything goes sideways.
Free shipping on orders over $49
Plain-box discreet packaging
Serving growers since 2006
What to expect
When you order from Happy Hydro
Fast & Free on Orders $49+
Free standard shipping to the lower 48. Most orders ship same or next business day from our Buffalo, NY warehouse via UPS Ground or USPS Ground Advantage. Expedited options available at checkout. * Soils may incur added fees for Western US delivery * Some products ship direct from the vendor's warehouse to keep prices lower and get your order there faster
Every order ships in a plain brown box with no branding or logos. Your purchase stays 100% private. We can also ship to your local UPS Store on request.
Specs
Shipping details at a glance
Delivery time
3-5 business days
Default carrier
UPS Ground or USPS
Signature required
Orders over $500 only
Free shipping threshold
$49+ to the lower 48
International
Canada only Email help@happyhydro.com your address & a screenshot of your cart for a quote
Returns
30 days on most orders Exceptions apply — orders over $400, multi-box shipments, and some vendor items may incur return shipping charges. Full policy
Questions
Frequently asked questions
Shipping
Check the order confirmation sent to your email or phone after checkout — it includes a tracking link. If you use the Shop App, you can track your order there too.
Most orders arrive in 3-5 business days. Expedited options (2-day, overnight) are available at checkout if you need it sooner.
Signature is only required on orders over $500. For added privacy, we can ship to your local UPS Store so you pick it up on your own schedule — just ask.
We default to UPS Ground or USPS Ground Advantage. Select an expedited option at checkout and we'll use the appropriate carrier for that service.
P.O. boxes: Yes, for small and lightweight items.
International: Canada only. Email help@happyhydro.com your address and a screenshot of your cart for a shipping quote.
APO/FPO: Not currently available.
For Canadian orders, import duties and taxes are the buyer's responsibility. You'll complete payment using your tracking number at UPS.com when your package arrives.
Title and risk of loss pass to you once we hand off to the carrier, but that doesn't mean we leave you hanging. Email help@happyhydro.com and we'll work overtime to track it down and make it right.
Payment
We accept credit/debit cards, PayPal, Coinbase, and Happy Hydro gift cards. Your card is charged immediately at checkout.
Double-check your billing address and card number. For larger purchases, your bank may have flagged it — a quick call to authorize the transaction usually sorts it out.
Promotions
Enter your code in the "Promo code" box at checkout and click Apply. One code per order, but you can combine a gift card with a promo code if you have both.
Subscribe to our mailing list for exclusive discounts and early access to sales. You can sign up at the bottom of any page on our site.
Returns & Cancellations
Email help@happyhydro.com within 30 days of delivery and we'll get you a refund or replacement, your choice. Items must be in original packaging with all parts in resalable condition. Multi-light orders, grow tents, orders over $500, and multi-box shipments may incur return shipping charges. AK, HI, and international buyers are responsible for return and warranty shipping. Some vendor-specific policies may apply — check the product page for details.
Refunds are processed through Shopify within 10 business days. Most customers see the credit back in about 5 days.
Reply to your order confirmation email or email help@happyhydro.com as soon as possible. Canceled orders may incur a processing fee depending on your payment method:
Credit/debit card: 2.9%
PayPal or Venmo: 3.5%
International PayPal: 4.0%
American Express: 4.1%
Shop Pay Installments / PayTomorrow: 6.5%
Support & Policies
Call or chat with our grower support team at 716-217-0353, Monday-Friday 10 am-4 pm EST. You can also email help@happyhydro.com any time and we'll get back to you quickly.
Happy Hydro began as a pipe dream in a garage and has grown into something built almost entirely on word of mouth and repeat customers. Rather than focusing on raising margins and obsessing over profits, we've always believed that the right combination of competitive prices, superior products, and world-class customer service speaks for itself. Our philosophy will never change: when you're happy, we're happy.
Our commitment
What you can expect from Happy Hydro
Real People, Real Growers
Our grower support team isn't a call center. They know the products because they're passionate about growing. Reach us Monday-Friday, 10 am-4 pm EST at 716-217-0353 or help@happyhydro.com, before you order or after.
Hand-Picked by Growers, for Growers
Every brand we carry was chosen by our founders because it performs. We only stock premium brands we believe in, and every item is inspected before it leaves our warehouse.
Fair Prices and Free Shipping
We work hard to keep our prices as low as manufacturers allow, and we include free shipping on orders over $49 so there are no surprises at checkout. Find a lower price anywhere and we'll match it.
Authorized for Every Brand We Carry
We're an authorized dealer for every manufacturer on our site. That means you get the full manufacturer's warranty on every purchase. No grey market, no expired stock.
30-Day Returns on Most Orders
Hard to commit to a product you haven't tried. Return most items within 30 days in original condition and we'll take care of it. Read the full policy.
Secure Shopping, Private Data
Every transaction is SSL encrypted. We don't store payment information and we will never sell your data to anyone, ever.
Volume and Commercial Pricing
If you're a commercial grower or putting together a large order, reach out before you buy. We have pricing available that we can't advertise publicly. Call 716-217-0353 or email help@happyhydro.com and we'll take care of you.
Frequently Bought Together
Product Reviews
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.