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HTGSupply Portland, Maine Store


High Tech Garden Supply
178 Rand Rd

Portland, ME 04102

(207) 899-4387


Store Hours

Open Daily 10:00am - 6:00pm

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HTG Supply - Portland, ME Hydroponics Store - Conveniently located in Portland, Maine, we are able to offer the best prices on grow lights to northern New England. With brands like Advanced Nutrients, Foxfarm, Eye Hortilux, Sunmaster, General Hydroponics, Can Fans, EZ Clone, Hydrofarm, Sunleaves, GrowBright, Agromax, High Yield Lighting, Aurora Innovations, Roots Organics, Digital Greenhouse, Lumatek, Dutch Master, Hanna, Humboldt Nutrients, Technaflora, Sentinel, CAP, and many more we have everything you need to make your indoor garden a success!

HTGSupply Maine Blog

HTGSupply Maine Blog



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HTG Supply is the biggest and best hydroponics / organics / indoor garden grow store in all of Maine. High Tech Garden Supply - Portland, ME is located at 178 Rand Rd. HTG Supply’s huge showroom is fully stocked with great deals on plant care products & equipment for indoor gardens & outdoor gardens. Whether you're just starting seeds or you're ready to harvest we carry everything the grower needs from potting soil to nutrients, pesticides & indoor grow lighting with all of the hardware & knowledge you'll need for a successful garden. At High Tech Garden Supply, we have it all, you'll find quality organic & synthetic grow products, including fertilizers, nutrients, supplements and additives from Heavy 16 Nutrients, Botanicare, Foxfarm, General Hydroponics, Roots Organic, Dyna Grow, House & Garden, Earth Juice, Bloom (Yellow Bottle), and Advanced Nutrients as well as all the other top brands. HTG Supply has all the garden soils, coco fiber, rockwool and soilless mixes you will need for hydroponic and non-hydroponic growers, including Ocean Forest, Happy Frog, Light Warrior, Roots 707, Roots Coco Palms, ProMix BX, Cyco Cocopeat, Grodan and more.


Best yet, HTG Supply has a friendly and knowledgeable staff that are experienced growers and can offer valuable advice and tips on how to make your gardens more successful and productive whether you are a beginner or expert! Stop in or call us at 207-899-4387 and we’ll be happy to answer your growing questions.


HTG Supply is the biggest grow shop in Maine and has the best prices around on top quality indoor grow lighting supplies for your indoor garden. We have a large variety of grow light packages on display in our store for you to browse from small 150 watt or 250 watt grow light systems to 400 watt grow lights, 600 watt digital grow lights and tons of 1000 watt grow light packages. And we stock every grow bulb made: Metal Halide / MH, High Pressure Sodium / HPS, High Output T5 Fluorescent grow lights and even LED Grow Lights from respected companies like Hortilux, Sunmaster, Agromax, Growbright, & many more.



HTG Supply – Portland, Maine carries a gigantic stock of hundreds of grow lights, grow light reflector hoods and indoor grow lighting accessories. We carry all the top brands of grow light ballast including digital ballasts and standard magnetic ballast types. HTG Supply has every type of reflective film needed for indoor grow room areas, including Black / White poly / Panda Film, Mylar and Diamond Foil and we have the areas largest selection of Grow tents and drying nets. We also carry dozens of styles and types of grow room fans including Can Fans, duct fans, inline fans, blowers, oscillating fans, carbon filters and other garden odor control devices. HTG Supply carries a wide selection of hydroponic gardening products, natural organic soils, nutrients, organic fertilizers, pest control products and water filtration / RO Reverse Osmosis water filters at great low prices. HTG Supply stocks all the hydroponic supplies, hydroponic equipment, parts and pieces that you will need for your indoor hydroponic garden. Our brands include: Heavy 16 Nutrients, Fox Farm / Ocean Forest / Happy Frog, Advanced Nutrients, Hydrofarm, ProMix BX, Roots Organic 707, Hortilux grow lamps, Sunmaster grow bulbs, Botanicare, Ebb & Grow, Lumatek, Can Fans and Carbon Filters, House and Garden Nutrients, Dyna-Grow, General Hydroponics / GH and many more. We also have all the CO2 equipment you need for your indoor garden including tanks, controllers, valves, and even Exhale CO2 bags. HTG Supply has every size of grow pots, containers, grow bags, root pouches, rooting pots and buckets you need. HTG Supply Portland, Maine also has a full stock of all of the meters and testing equipment you need to keep your garden growing, including Blue Lab meters, Hanna, Milwaukee Meters, and PH control supplies. We also carry specialty items such as spinning flower trimmers / leaf trimmers / bud trimmer, extraction bags / bubble bags and digital nutrient scales.


We at High Tech Garden Supply are always looking to save you some green, so check out our weekly in store specials or come on in for our "Free Compost Tea Tuesdays." Our HTG Brand Stump Tea provides all of the beneficial microorganisms your plant’s root zone needs to aid in processing your favorite brand of nutrients! You bring the jug & we'll fill it up with our special compost tea blend for free!


Stop on by & let our friendly & knowledgeable and experienced gardening staff help you with all of your indoor garden & outdoor garden, hydroponic or soil growing needs! If you are looking for Hydroponics in Maine, Grow Lights in Maine or Organic Indoor Gardening Supplies in Maine, please visit HTGSupply, as we have the best prices on indoor growing supplies in Maine. We service all of Maine, Portland, South Portland, Lewiston, Auburn, Biddeford, Sanford, Bangor, Augusta, Waterville, all over the great State of Maine.


To HTGSupply Portland, ME:
Take exit 47 off of the Maine Turnpike (I95), turn right onto Rand Road and we are less than ¼ mile on the right
hand side immediately after crossing a railroad track.




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