Grotek Gro-Silic, 4L

Grotek Gro-Silic, 4L

SKU: GTGS4L
Current Stock: 1493
Lead Time: This item ships in 1-2 Business Days
$193.75
MSRP: $232.99
$193.75
— You save $39.24
Subtotal: $193.75

Free Returns

Learn More.
Grotek Gro-Silic, 4L

Grotek Gro-Silic, 4L

$232.99 $193.75

Grotek Gro-Silic, 4L

$232.99 $193.75

Grotek Gro-Silic is a concentrated liquid silicon supplement suitable for soilless and hydroponic systems.


This plant-available form of silicon helps improve plant growth and quality, in part by hardening cell walls. Plants with improved cell wall structure are better able to endure periods of abiotic stress such as high temperatures and drought.

Silica is one of the most interesting supplements to add to a nutrient program. While not considered essential, silica assists numerous plants with abiotic stress. Gro-Silic has elevated levels of plant available silica to help with heat, drought, and salinity, providing improved uptake within plant structures when compared to other slower release forms of silica.

Grotek Gro-Silic is a strong base and should never be added to nutrient concentrates. To avoid precipitation of nutrients, it is recommended to add Grotek Gro-Silic to nutrient tank and adjust pH to desired range prior to adding other nutrients. If adding to an existing nutrient solution, pre-dilute in a small amount of water. Check pH and adjust to 5.5 - 6.5 depending on crop requirement.

Grotek Gro-Silic Features

  • Compatible With Beneficial Biology
  • Improves Abiotic Stress Resistance
  • Highly Concentrated, Plant Available Silica


Grotek Gro-Silic Guaranteed Analysis

  • Boron (B) - 0.009%
  • Derived From: Boric Acid

Grotek Gro-Silic Also Contains Non-Plant Food Ingredient:

  • 13% Soluble Silicon (Si) from Sodium Silicate
  • 87.0% Total Other Ingredients (inert as non-plant food ingredient)

Grotek Gro-Silic application Rate and Feedchart

Application Rate: 1L makes 6667L of solution.

Foliar application: Dilute to 1:500 or greater. Apply at the 3 - 8 leaf stage and once monthly thereafter as required. Soilless/water culture application: For nutrient solutions apply at a rate of 0.15 - 0.30 ml/L (0.6 - 1.2 ml/gal.).

Note: Gro-Silic is very effective as a soil drench, but for fastest absorption apply as a foliar spray.

Follow This Simple Feed Chart Designed by our Research Team

Seeding Transplant Vegatative Pre-Flower Week 1 Week 2
0.3 mL/L 0.5 mL/L 1.3 mL/L 1.3 mL/L 1.3 mL/L 1.3 mL/L
Week 3 Week 4 Week 5 Week 6 Week 7 Week 8
1.3 mL/L 1.3 mL/L 1.3 mL/L 1.3 mL/L 1.3 mL/L
Lead Time This item ships in 1-2 Business Days
EACH - Weight(lb) 10.08
EACH - Height(in) 10.5
EACH - Length(in) 4.9
EACH - Width(in) 8.06
Weight (lb) 10.08
Height (in) 10.5
UPC 67082922517
Width (in) 8.06
Brand Grotek
SKU GTGS4L
Shipping Restrictions AK, AZ, HI, IA, KY, MA, MD, NE, SD, WI
OMRI Certified No
Nutrient Application Hydroponic and Soil Nutrient
Nutrient Type Synthetic Based
Nutrient Material Type Liquid

Related Products

Recently Viewed Products