Northern Lights Green Supply

11/21/2025

To our valued customers, after 30 years of serving Niagara, Northern Lights Green Supply is closed. Thank you for your loyalty, trust, and support over the decades.

As we close our doors, we encourage you to support a local business. For your growing needs, please visit Bob's Grow Mart. 2255 Hwy 20, Unit 3, Thorold, ON. Phone: (905) 892-2121 Website:

We offer the most extensive and complete selection of hydroponic indoor garden products and fertilizers in Niagara. We are competitively priced and have the largest IN STOCK inventory in the area.

05/22/2025

Gaia Green's All Purpose 4-4-4 and Power Bloom 2-8-4 have been our best selling organic fertilizer for many years! Try it out for yourself and see why!

Organic gardeners and farmers everywhere are discovering the benefits of using Gaia Green Premium blends.

A truly all purpose fertilizer suitable for a wide range of crops while improving the vitality of your soil.

Easy-to-use and long-lasting, this formulation combines ingredients with variable nutrient release rates for feeding plants all season long.

Formulated using only the finest organic and mineral inputs to ensure a range of essential nutrients. Made with no added synthetic fertilizers or pesticides, providing you with an alternative to conventional products.

04/16/2025

**Holiday Hours Notice**

Good Friday, April 18 - Closed

02/01/2025

Now in stock for the 2025 season!
Aimers Organic (GMO FREE) Vegetable & Herb Seeds!

Enjoy a wide variety of :
Arugula, Basil, Cilantro, Chives, Dill, Oregano, Parsley, Sage, Thyme, Bean, Beet, Broccoli, Cabbage, Cantaloupe, Carrot, Corn, Cucumber, Kale, Leek, Lettuce, Lettuce Greens, Meslun, Okra, Onion, Peas, Peppers,, Pumpkin, Radish, Spinach, Zucchini, Squash, Swiss Chard, Tomato & Watermelon!

12/03/2024

Holiday Hours: Dear customers, we will be closed Dec 25th - Dec 30th and Jan 1st.

Thank you for continuing to support your local grow store! We look forward to another great year providing you with quality supplies & advice for all of your growing needs! Happy Holidays!

11/06/2024

Gift certificates are an excellent choice for any lover of plants this holiday season.

From seed to harvest, you can find everything you need at Northern Lights Green Supply!

10/10/2024

Amending soil in the fall offers several advantages, preparing your soil for a thriving garden next year.

Here are 3 key benefits:

Enhances Soil Microbial Life: Compost and other organic amendments introduce beneficial microorganisms to the soil, which helps to establish a healthy soil food web, supporting plant growth and disease resistance.

Gradually Feeds the Soil: Adding organic matter in the fall allows it to break down over winter, gradually releasing nutrients and improving soil structure, making it more receptive to plant growth in the spring.

Prevents Soil Erosion: Organic matter helps hold the soil in place, reducing erosion and soil compaction, which can damage soil structure and hinder root growth.

By amending your soil in the fall, you’re investing in a healthier, more resilient soil ecosystem that will benefit your garden for years to come!

Come check out our selection of compost/manures/castings, organic amendments and so much more!

04/26/2024

The Phantom Cultivar GL250 LED is designed for those who take their cultivation seriously, regardless of what they grow.

The compact, elegant yet robust fixture can be used for many different applications. Offering 2.6 μMol/J efficacy, the GL250 incorporates a premium aluminum unibody heatsink for longer diode life and less output degradation over time. The integrated Master-Apprentice Dimmer k**b (MAD) and Two-Step Spectrum switch (TSS) puts the grower in control without the need for additional gear.

Phantom's mission has always been the same since 1977: Cultivate Higher.

Click the link below to learn more!
https://northernlightsgreensupply.com/product/phantom-cultivar-gl250-led/

Call now to connect with business.

03/01/2024

Jorge Cervantes, veteran cannabis cultivator and author of “The Cannabis Encyclopedia” shares his process for germinating cannabis seeds.

01/31/2024

Aimers Organic (GMO FREE) Vegetable & Herb Seeds are now in stock for the 2025 Season!

Enjoy a variety of :
Arugula, Basil, Cilantro, Chives, Dill, Oregano, Parsley, Sage, Thyme, Bean, Beet, Broccoli, Cabbage, Cantaloupe, Carrot, Corn, Cucumber, Kale, Leek, Lettuce, Lettuce Greens, Meslun, Okra, Onion, Peas, Peppers,, Pumpkin, Radish, Spinach, Zucchini, Squash, Swiss Chard, Tomato & Watermelon!