SKU: 35665918128

GT Silica

Sale price$15.30 Regular price$17.00
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Ships within 48 hours · Estimated delivery Sep 5 - Sep 10

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Description

GT SilicaGT Silica Strengthen Plant Cell Walls for Healthier Growth GT Silica is a concentrated potassium silicate additive designed to supply plants with bioavailable silica a mineral not naturally present in most hydroponic solutions. Regular use helps fortify plant cell walls, making them more resilient against pests, diseases, environmental stress, and physical damage. Why Use GT Silica? Strengthens cell walls for improved structural integrity. Boosts

GT Silica – Strengthen Plant Cell Walls for Healthier Growth

GT Silica is a concentrated potassium silicate additive designed to supply plants with bioavailable silica – a mineral not naturally present in most hydroponic solutions. Regular use helps fortify plant cell walls, making them more resilient against pests, diseases, environmental stress, and physical damage.

Why Use GT Silica?

  • Strengthens cell walls for improved structural integrity.
  • Boosts resistance to fungal infections, insect attacks, and environmental stress.
  • Increases chlorophyll production for more efficient photosynthesis and CO2 uptake.
  • Helps maintain leaf variegation and reduces the risk of brown spotting.
  • Suitable for all growth stages – vegetative through to maturity.

Directions for Use

Hydroponics / Semi-Hydro: Add 5ml per litre of plain water, stir thoroughly, and let sit for 15 minutes before adding nutrients. Adjust pH to 5.5–6.5 after mixing.

Soil / Potting Mix: Add 2–3ml per litre of plain water, stir thoroughly, and let sit for 15 minutes before watering plants.

Tip: Always mix GT Silica into water before adding other nutrients to avoid precipitation and ensure even distribution. Handle with care – wear gloves and eye protection when using the concentrate.

Guaranteed Analysis

  • Potassium (K): 0.58% w/v
  • Silica (Si): 1.07% w/v

Comparison with Other Growth Technology Products

Product Purpose Best For
Foliage Focus Complete nutrient solution for leafy growth General plant health, foliage plants
Complete Focus Balanced nutrient solution for all plant stages All-round feeding, mixed plant collections
GT Silica Silica additive to strengthen cell walls and improve stress resistance Boosting plant structure and resilience alongside a base nutrient
GT Rootzone Root biostimulant to promote strong root systems and plant vitality Encouraging healthy root growth and improving nutrient uptake

 

Please note: This product is not eligible for return, as liquid items supplied in non-sealable containers cannot be resold due to contamination risks.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 35665918128

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Tech Dad
Omaha, US
★★★★★ 5
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Material Type: Recycled Polyester, Color: Blue, Size: X-Large
I’ve been pleasantly surprised by these shirts and wear them weekly for Zoom calls, since I’m still working from home these days. I figured at the price point it was worth trying them out, and now I’ve bought several in different colors. They aren’t super soft, but they are comfy and look nice. I’m 6’1” ~220 pounds, and the XL slim fit still has plenty of room. I imagine the regular cut is incredibly boxy and oversized. The difference between polyester vs recycled polyester is inconsequential. I typically buy expensive golf shirts, and these definitely aren’t as nice. They are a fraction of the cost though and a great “beater” work shirt / hang out shirt. It’s nice wearing something that looks and feels decent, but if something happens to it, you can toss and it and pick up another for the cost of a chipotle burrito.
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Reviewed in the United States on May 29, 2022
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Espresso
Lowell, US
★★★★★ 3
Great price, not great quality
Material Type: Recycled Polyester, Color: Black, Size: Small
Simple, straight forward all black polo. I am a size medium woman (with some room since I don't like form-fitting) and bought a men's small. Fits perfectly for my frame. Long enough to tuck in for my part-time extra weekend job uniform. Also suitable for the golf course. A little thin, and if you hold it up to light you can sort of see through it. *Not* flowy, soft and smooth fabric like a rash guard/sun shirt - more structured than that. But it's cool and does the job for the price under $10.
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Reviewed in the United States on August 13, 2024
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Ken Strech
San Leandro, US
★★★★★ 5
Recommend
Material Type: Recycled Polyester, Color: Dark Navy, Size: X-Large
Great fit, right price
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Reviewed in the United States on March 18, 2026
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Gwen
Louisville, US
★★★★★ 5
Nice polo
Material Type: Recycled Polyester, Color: Dark Teal, Size: Medium
Fantastic polo shirt. Size was true to fit. Color is amazing. It’s soft and it has held up through washes since Christmas.
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Reviewed in the United States on March 14, 2026
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Al
Natrona Heights, US
★★★★★ 5
Great shirt for the price.
Material Type: Recycled Polyester, Color: Electric Blue, Size: Large
Bought this for my son. Very nice shirt for the price, it is true to size and the color is the same as the picture. Would definitely buy it again. The material is good quality. No issues whatsoever
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Reviewed in the United States on May 19, 2026

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