GrowersHouse.com Promo Codes and Coupons December 2025

GrowersHouse.com

Growers House is an online retailer specializing in hydroponics, gardening supplies, and grow equipment. They offer a comprehensive selection of products for both hobby gardeners and commercial growers, including lighting systems, nutrients, climate control equipment, and growing media. The company provides educational resources and expert advice to help customers succeed in their growing endeavors.

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Today's GrowersHouse.com discount codes

TOP PICK

10% off

97 uses

high

worked about 1 month ago

10% Off Athena Products at GrowersHouse. com

$50 off

401 uses

high

worked 9 months ago

$50 Off Storewide (Minimum Order: $250) at GrowersHouse. com

$25 off

307 uses

high

worked about 1 month ago

$25 Off Storewide (Minimum Order: $250) at GrowersHouse. com

5% off

195 uses

high

worked about 1 month ago

5% Off Storewide (Minimum Order: $250) at GrowersHouse. com

Featured GrowersHouse.com Products

TrolMaster Hydro-X Controller with 3-in-1 Sensor (HCS-1)

The Hydro-X system is a professional-grade single zone environmental controller. It is a fully customizable modular designed system. Installation is simple and the system is easy to expand upon. The Hydro-X system can control most grow lights brands, HVAC systems, mini-split air conditioners, commercial dehumidifiers and humidifiers, as well as CO2 generators or regulators. With the free TrolMaster App, the user can access all of the settings and alerts on the system from anywhere at anytime. The HCS-1 is the brain of the Hydro-X system. It comes with a 3-in-1 Temp/Humid/Photocell sensor. Hydro-X Control System is the most intelligent and versatile environmental control system in the market. The system comes with a 3-in-1 sensor detecting temperature, humidity and light. A CO2 sensor is available for measuring CO2 level. A smoke detector is also available for smoke detection to alert you if there is a fire. With its incredible flexibility, and Hydro-X user could easily customize their own grow room system for maximum yield. The system could control up to: 512 lights, 4 temperature devices, 2 humidity devices, 2 CO2 devices, and 9 preprogrammed devices. Having two separate lines allows the user to create multiple lighting layouts (and dimming sequences) based on their individual preferences. 256 ThinkGrow lights can be controlled on each line, 512 lights controlled in total. A signal converter is available for controlling the traditional lights based on analog signal (such as Gavita etc.). Hydro-X can control almost all kinds of devices in your grow rooms by its 4 types of device stations. Temperature device stations, humidity device stations, CO2 device stations and program device stations are designed to connect to different devices for centralized control. Hydro-X keeps pace with the times, it can connect to the network directly. After downloading the app, you can monitor and control the environment of your grow rooms anytime and anywhere. You can read historical data by graph on your smartphone and receive a warning message if exceeded the setpoints. A micro-SD card port is also available for data logging in the Internet is unavailable. Package Contents: 1 x Hydro-X Controller 1 x Temp / Humid / Light 3-in-1 Sensor 1 x RJ12 Cable Set for Light Connection Input Voltage: 100-240VAC, 50/60Hz Certifications: ETL/FCC Degree of Ingress Protection: IP20 Max Number of HID Fixtures: 256*2 Max Distance to Device to be Connected: 1000 meters 3-in-1 (Temp/Humid/CO2) Sensor: Max 1pc per set CO2 Sensor: Max 1pc per set Smoke Detectors: Max 20pcs per set Temp Device Stations: Max 4pcs per set Humid Device Stations: Max 2pcs per set CO2 Device Stations: Max 2pcs per set Program Device Stations: Max 9pcs per set Package Dimensions: 10.8"(L) x 6.5"(W) x 2.5"(H) G.W. per pack: 2.38 lbs

USD 328.18

Bubble Magic Extraction Machine v2.0 - 5 Gallon

More efficient and affordable than anything else on the market, the Bubble Magic Extraction Machine v2.0 - 5 Gallon Extraction Machine utilizes the most advanced technology in the extraction industry! Easy to use, durable, and portable, Bubble Magic Machines are super-efficient and feature a built-in drain and a 15 minute timer with 3 minute increments. Eliminate 90% of the work in the extraction process and save yourself time and money as these machines pay for themselves after just one use! Use them with our Bubble Magic Extraction bags to create the perfect finished product. (1) 220 Micron Zipper Washing Bag Included with every machine UPC # 816731010191 ** Item returns not accepted for this product. Replacement parts typically will be sent out from manufacturer in the case that the product malfunctions. "In the case that you see water marks in your brand new machine, it is because this machine was tested by the manufacturer to ensure proper functioning for quality assurance purposes."

USD 164.28

Grotek - Monster Grow Pro - 18-36-1

The new Monster Grow Pro is a powerful supplement designed to enhance your existing fertilizer program during the vegetative and pre-flowering stages. High levels of nitrogen are further enhanced by soluble plant based hydrolysate and kel

USD 1.20

Stash Blend Premium Plant Additive

Stash Blend Premium Plant Additive Introducing the Stash Blend Premium Plant Additive: Maximize Your Plant's Potential 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% Soluble Potash (K2O)................................... 5.0% Derived from: Corn Steep Liquor, Seaweed Extract (Ascophyllum nodosum), Potassium Hydroxide ALSO CONTAINS NON-PLANT FOOD INGREDIENTS 3.0%.............................................................. Humic Acid (Derived from Leonardite) 0.5%.............................................................. Soluble Silicon (Si) BACTERIA: Bacillus licheniformis: 100,000,000 cfu/g; Bacillus pasteurii: 10,000,000 cfu/g; Bacillus subtilis: 7,000.000 cfu/g; Paenibacillus azotofixans: 5,500 000 cfu/g ENDO MYCORRHIZAE: Glomus intraradices: 7 prop/g; Glomus mosseae 7 prop/g; Glomus aggregatum: 7 prop/g; Glomus etunicatum: 7 prop/g 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

USD 29.70

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5% off

132 uses

high

worked about 1 month ago

5% Off Select Items at GrowersHouse. com

$10 off

13 uses

high

worked about 1 month ago

$10 Off Storewide (Minimum Order: $100) at GrowersHouse. com

10% off

28 uses

high

worked about 1 month ago

10% Off (Storewide) at GrowersHouse. com

50% off

6 uses

medium

worked 6 months ago

Score 50% off with coupon

More GrowersHouse.com Products

Humboldt Nutrients Micro 5 - 0 - 1 -- 1 Quart

Micro contains three separate chelating agents, triple insurance against nutrients falling out of solution or nutrient lock-out. Humboldt Nutrients Micro has all the micronutrients necessary to create healthy plants, strong aromas, & large yields.

USD 15.26

AC Infinity CONTROLLER 67, Temperature and Humidity Fan Controller

AC Infinity CONTROLLER 67, Temperature and Humidity Fan Controller The AC Infinity CONTROLLER 67 is designed to enhance your cooling and climate control system with smart controls to maintain a stable climate. The controller helps you conserve energy while providing temperature, humidity, and CO2 control. It features a black powder-coated body and a backlit LCD screen that presents a sleek aesthetic. The display has three brightness levels, as well as two auto brightness settings, and reads temperatures in Fahrenheit or Celsius. This product is a part of the UIS™ platform of grow devices and smart controllers, designed to integrate with each other to achieve your ideal environment. INTELLIGENT PROGRAMMING AC Infinity CONTROLLER 67 is a patent-pending smart controller with complete temperature control. It includes basic program settings but also allows you to set dynamic speed requirements for your fans that are based on their changes in temperature and humidity. The more advanced features allow you to set minimum fan speeds so that they don't automatically shut down the moment your desired temperature threshold is reached. Furthermore, AC Infinity CONTROLLER 67 features a timer, cycle, and schedule modes that allow custom on-demand activation for a variety of purposes. Using Bluetooth connectivity, you can access your fan remotely through the AC Infinity App to lock/unlock advanced programs and set notifications; view historical climate charts; export CSV data info, and control other devices through automation options. COMPATIBILITY The built-in Molex ports allow you to pair two fans together to share the same programming and achieve more airflow. This intelligent controller is compatible with the following fans with EC motors: CLOUDLINE Series of Inline Duct Fans AIRLIFT Series of Shutter Exhaust Fans CLOUDWAY Series of Whole House Fans CLOUDRAY Series of Clip-on Circulation Fans (with Molex Adapter) Supports up to two CLOUDLINE, AIRLIFT, or CLOUDWAY with EC motors to share the same programming. T-Series models include an intelligent controller with temperature and humidity programming, adjustable fan speed control, timer, and alarm system. Product Details Specifications Product Performance And Technical Specs Total Dimensions 5.19 x 2.91 x 1.06 in. (13.2 x 7.4 x 2.7 cm) Hole to Hole Distance 4.71 x 2.64 in. (12.0 x 6.7 cm) Screw Hole Size Ø 0.119 in (Ø 0.3 cm) Display Size 3.5 x 1.4 in. (9 x 3.5 cm) Maximum Fans Controlled 2 Sensor Probe Length 144 in. (12 feet) Power Input 12V from Device Operating Humidity 35 to 85% RH A digital controller designed to equip AC Infinity fans with smart controls for HVAC or growing applications. Dynamically adjusts fan speed based on temperature and humidity conditions to produce optimal airflow. Programming includes automated triggers, timers, cycles, scheduling, minimum speed, and custom transitions. Connect with our app via Bluetooth to unlock advanced programs, set notifications, and view climate data. Supports up to two CLOUDLINE, AIRLIFT, or CLOUDWAY with EC motors to share the same programming.

USD 49.99

General Hydroponics pH Down Liquid

The Acid formulation uses food grade Phosphoric acid to lower the pH to the proper level. To maximize plant growth, the pH of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or when pH unstable media ”“ such as rock wool or gravel products ”“ are used, or when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.

USD 11.84

Advanced Nutrients - pH Down

Advanced Nutrients - pH Down Optimize your hydroponic system with the industry's most concentrated, high-quality pH reducer - Advanced Nutrients - pH Down. Designed to limit fluctuations and decrease the frequency of pH adjustments between reservoir changes, this potent formula helps maintain the nutrient solution's pH within the optimal range of 5.5 - 6.3. pH levels significantly influence your plant's ability to absorb nutrients, affecting overall health and growth. High or low pH levels can impede nutrient uptake and may potentially harm or even destroy your crops. This is why successful growers continually monitor and adjust pH levels, ensuring they stay within the optimal range across a variety of growth media including hydroponics, sphagnum moss, coco coir, rockwool, aeroponics, soil, and more. Advanced Nutrients - pH Down is carefully manufactured with pure, pharmaceutical-grade concentrates to deliver consistent, reliable results without harmful materials. Our pH adjustment products are of superior quality and stability compared to the cheaper, inferior products in the market. Ingredients include phosphoric acid, an effective pH adjuster with buffering capacity, which helps maintain the solution's pH level at optimum for longer. pH-Down is designed for use across diverse hydroponic growing media and all continuous liquid-feed growing systems such as aeroponics, drip irrigation and emitters, NFT, flood and drain, and deep water culture. Advanced Nutrients - pH Down ensures a nutrient-friendly environment, leading to healthier plants and heavier harvests. It offers the benefit of being highly concentrated, providing long-lasting use. Please note, Advanced Nutrients does not use paclobutrazol, daminozide, or any other banned plant growth regulators in our products. Ingredients: Phosphoric Acid WARNING: DO NOT STORE pH UP AND pH DOWN SIDE BY SIDE!

USD 17.59

50% off

3 uses

medium

worked 9 months ago

Take 50% off with discount code on $1000+ orders

10% off

1 uses

medium

worked 7 months ago

Score 10% off with code

50% off

4 uses

medium

worked 9 months ago

Save 50% off with promo code

75% off

6 uses

medium

worked 9 months ago

Save 75% off with promo code

Sustainability Score

62%

While Growers House promotes sustainable growing practices through their products, their own corporate sustainability practices lack transparency. They have made some efforts in sustainable packaging and energy-efficient shipping practices, but there's limited information about their supply chain ethics and environmental impact. The company could improve by implementing clear sustainability reporting and establishing concrete environmental goals.

About GrowersHouse.com

3.0 (3)

FAQs

: Growers House regularly offers sales during major holidays like Black Friday, Cyber Monday, and Memorial Day. They also run seasonal sales during spring and fall growing seasons.
: Yes, Growers House offers price matching on identical items from authorized retailers, excluding auction sites and unauthorized dealers.
: The best time to purchase is during off-season periods (late fall/winter) and during major holiday sales events. Sign up for their newsletter to get notified of flash sales and special promotions.
: Yes, Growers House offers volume discounts for bulk purchases. Contact their customer service team for specific pricing on large orders.
: In the past month, GrowersHouse.com has launched 0 new promo coupons for shopper discounts. This indicates that GrowersHouse.com does not provide regular opportunities for customers to save money on their purchases.
: On average, GrowersHouse.com provides 3 discount coupons each month. Based on historical data, the average time between GrowersHouse.com coupon releases every 10 days. However, this rate depends on various factors such as seasonal promotions (Black Friday, Cyber Monday, etc.), product launches, or other marketing initiatives. To stay informed about upcoming discounts and promotions, we recommend checking GrowersHouse.com website regularly, subscribing to email newsletters, and following them on social media.
: GrowersHouse.com is offering 7 working store-wide codes, however they are also offering 25 additional discount codes with a best discount of 10% off
: terra.coupons is the #1 provider of discount codes for your favorite retailers, such as GrowersHouse.com. As a crowd-sourced platform for coupon codes, we accurate codes for over 10,000 stores. Save time and avoid expired codes by checking terra.coupons for the latest GrowersHouse.com discount codes.

Curated by

Massam A.

Discount Finder

Last updated December 2025

Hailing from the scenic Pacific Northwest, Massam is a former chef turned deal-hunting enthusiast. When he's not tracking down the latest discounts, you'll find him exploring hiking trails or experimenting with sustainable living. He brings the same attention to detail from his culinary days to curating the best promotions for you.

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From the blog

2025-04-29

GrowersHouse.com Promo Codes and Coupons December 2025