Special order for a customer! If you dont see it in store, we can probably get it for you.

One of the most common deficiencies during the vegatative growth and flowering cycles is calcium, magnesium & iron. These deficiencies can cause nutrient lockouts, disease prone & decaying foliage associated with various of other plant vital health issues. Cal/Mag is the solution to maintain heal...

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New products coming in daily!! We have all the best brands for your cannabis plants. Swing by your local grow shop and let us help you grow the best buds possible!πŸŒΏβ˜€οΈ

Full shelves of any nutrient you could want/need for your plants.🌱 Come on down to Green Leaf Hydroponics and let us help you to the best product for your specific needs!


May 9, 2019 – May 21, 2019

We carry all the best brands of growing mediums! Promix Mycorrhizae, Canna Coco, Coco Bricks, Cocotek, Coco Earth, Sunshine #4, Black Gold #4, Promix Potting Mix, Promix Vegetable and Herb Mix, Promix Premium Organic Seed Starter Mix, Root Farm Potting Soil, F...

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Time to get ready for the outdoor season! Swing on by for our wide selection of soils, soilesses, super soils, coco & all growing mediums! We carry all of the best brands in the business.

Think your plants may be stressed? Heat and other poor conditions can be a culprit for the beginning of other problems such as nutrient deficiencies for seedlings to vegatating and mature flowering plants. By giving your plants these organic/hydroponic nutrients that include B vitamins, seaweed&k...

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LED lights, CMH lights, Reflectors, Single end, Double end, Fixtures, Fans, Controllers. We have all the equipment you need for your grow!


6 days ago
I highly recommend green leaf hydroponics to anyone looking for anything grow related..I had the pleasure of dealing with Jack while buying my first set up.. He is super knowledgeable very friendly and was more then happy to answer and explain anything I had questions about..I left the store with everything I needed and a ton of knowledge about the products to get me going..overall I couldn't be happier with my experience and will be reccomending the store to all of my buddies..I look forward to shopping here again in the near future.. It's not often you find a hidden gem like this one.
- Ron H
3 months ago
Hands down the best store and personnel around !! Let me tell you right now these guys want to help in any way they can. I am a fairly new grower and without a doubt within the first 2mins of me being there I was already getting knowledge and education that I just couldn’t find anywhere else. It’s that knowledge, customer appreciation and respect that I will 100% of the time utilize the best store around for my growing needs !!! Thanks a lot sir J !! See ya soon.
- Jason B
a month ago
I have OCD when it comes to cleaning. This store is extremely clean, Smells great, Products are always faced and english out and someone is always happy to help you here. Green Leaf Hydroponics is simply the best place around.
- Fred J

Brand new hydroponic store!

We carry all the best brands in the business at competitive prices. Come see for yourself!

Contact Us


Call now
  • (905) 240-2022


Get directions
East side of no frills plaza rear building in the back
197 Bloor Street East #3B
Oshawa, ON L1H 3M3

Business Hours

Mon:9:00 AM – 6:00 PM
Tue:9:00 AM – 6:00 PM
Wed:9:00 AM – 6:00 PM
Thu:9:00 AM – 6:00 PM
Fri:9:00 AM – 6:00 PM
Sat:10:00 AM – 6:00 PM
Sun:10:00 AM – 5:00 PM
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