The Grow Awards 2025 🏆
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Power Si specializes in silicon-based plant supplements aimed at improving plant growth, yield, and resistance to stress. Their flagship product, Power Si Original, contains bioavailable silicic acid (monosilicic acid) to enhance plant strength, nutrient uptake, and resistance to pests and diseases. Suitable for various plant types, it can be used throughout the entire growth cycle and in different growing systems, including hydroponics and aeroponics.
Another key product, Power Si Bloom, is designed for the flowering stage, combining a proprietary silica matrix with plant extracts through fermentation. This unique process creates an entourage effect, leading to better yields and crop quality. Power Si also offers other products like Lush, a nutrient made from seaweed extract and soy protein hydrolysate, and Granular, a concentrated MSA based granular fertilizer.
Overall, Power Si products focus on increasing nutrient uptake, improving plant health, and building stronger cell structures. They are compatible with other fertilizers and plant protection products, making them a versatile choice for enhancing plant growth and health in various growing conditions​

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Latest reviews Show All reviews

As usual, kept plants healthy and happy, through veg she did extremely well with heat swings, I had no A/C this summer, and just allowed fresh air in the room through my windows and ran high powered industrial fans to keep thing cool around 85-88 degrees on summer days!
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3 months ago
My favorite silica to use. Usually only use it a few weeks veg till early flower.
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3 months ago
Always use alil for photos or autos mid veg to early flower just for a few feedings I don't hammer silica or anything but it's a stable for me.
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3 months ago
Best there is a must to
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5 months ago
phurley12Newbie
does it's job
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6 months ago
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