Grotek Gro Silic 500 ml
Grotek Gro Silic 1 Liter
Grotek Gro Silic 4 Liter
Grotek Gro Silic 10 Liter
Grotek Gro Silic 23 Liter
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Grotek Gro Silic 500 mlGrotek Gro Silic 1 LiterGrotek Gro Silic 4 LiterGrotek Gro Silic 10 LiterGrotek Gro Silic 23 Liter

Grotek Gro-Silic

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Grotek
$ 54.95 $ 61.99
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Grotek Gro-Silic

Grotek Gro-Silic is a concentrated liquid silicon supplement designed to support stronger plant structure, improved growth quality and better resistance to abiotic stress. Formulated with plant-available silicon, Gro-Silic helps strengthen cell walls, allowing plants to better handle environmental challenges such as heat, drought and salinity stress.

Suitable for soilless and hydroponic systems, Grotek Gro-Silic can be used as a soil drench or foliar spray. For faster absorption, foliar application is recommended, making this supplement a practical choice for growers who want quick silicon support during key stages of plant development.

Why Choose Grotek Gro-Silic

  • Concentrated liquid silicon supplement
  • Contains plant-available silicon
  • Helps strengthen plant cell walls
  • Supports improved plant structure and growth quality
  • Helps plants better tolerate abiotic stress
  • Useful during heat, drought and salinity stress
  • Suitable for hydroponic and soilless systems
  • Can be used as a foliar spray or soil drench
  • Compatible with beneficial biology
  • Highly concentrated formula for efficient use
  • 1L makes up to 6667L of solution

Plant-Available Silicon Support

Silicon is not considered an essential plant nutrient, but it is widely used by growers to support stronger plant structure and improved stress tolerance. Grotek Gro-Silic provides silicon in a plant-available form, helping support cell wall strength and overall plant quality.

Plants with stronger cell wall structure are better equipped to handle environmental stress, making Gro-Silic especially useful in high-performance gardens, hydroponic systems, greenhouses and soilless growing environments.

Ideal For

  • Silicon supplementation
  • Hydroponic systems
  • Soilless growing media
  • Coco-based growing
  • Peat-based systems
  • Foliar applications
  • Soil drenching
  • Heat stress support
  • Drought stress support
  • Salinity stress support
  • Stronger plant structure
  • Indoor gardens
  • Greenhouse crops
  • Growers using complete nutrient programs

Guaranteed Analysis

  • Available Silicon (Si(OH)₄): 44.0%
  • Boron (B) actual: 0.009%
  • Molybdenum (Mo) actual: 0.0015%

How to Use

Use Grotek Gro-Silic as part of your regular growing program to support plant structure and stress resistance.

Foliar Application:

  • Dilute to 1:500 or greater
  • Apply at the 3–8 leaf stage
  • Repeat once monthly thereafter, as required
  • Apply evenly to foliage according to label directions

Soilless and Water Culture Application:

  • Add to nutrient solutions at 0.15–0.30 mL per 1 L of water
  • Imperial equivalent: 0.6–1.2 mL per 1 gal of water
  • Mix thoroughly before adding other nutrients
  • Adjust pH as needed after adding Gro-Silic

Important Mixing Notes

Grotek Gro-Silic should be added to the nutrient tank before adding other nutrients. To avoid nutrient precipitation, add Gro-Silic first, mix well, adjust pH to the desired range, and then add the rest of your nutrient program.

If adding Gro-Silic to an existing nutrient solution, pre-dilute it in a small amount of water first. After mixing, check pH and adjust to 5.5–6.5, depending on crop requirements.

Important Use Notes

  • Do not add Gro-Silic directly to nutrient concentrates
  • Add to the nutrient tank before other fertilizers
  • Pre-dilute before adding to an existing nutrient solution
  • Check and adjust pH after mixing
  • Use as part of a balanced nutrient program
  • Avoid over-application
  • Follow the product label for crop-specific recommendations
  • Store according to the manufacturer's instructions

Concentrated Silicon for Stronger Plants

Grotek Gro-Silic is a reliable silicon supplement for growers who want to support stronger plant structure, improved growth quality and better tolerance to environmental stress. With a highly concentrated formula, plant-available silicon and flexible foliar or root-zone application, Gro-Silic is an excellent addition to hydroponic, soilless and professional growing programs.

Note: Always follow the product label and Grotek’s official recommendations for proper dosage, mixing order, pH adjustment, application timing, compatibility and storage.

Order Confirmation

As soon as your order is placed, an order confirmation will be sent to the email address you used to place the order. This means we have received your order and payment. Payment is captured as soon as the order is placed. In rare cases, if the product is on backorder or unavailable, we will contact you and ask if you would like to wait for the product to become available, switch your product, or have your payment refunded. If the item is available for shipment we will submit the order for processing and arrange shipment. Please see current estimated lead times on the product page for each product.

Shipping

Most products ship within 1 to 3 business days. Some items might take longer as they are delivered from our warehouse in Vancouver. As soon as we receive your tracking number, we will send it over to you.

Free Shipping

Free shipping is available across all provinces throughout Canada for orders over 149$.

International Orders

Nearly all of our brands can be shipped internationally using FedEx, UPS, USPS, DHL or other couriers. Most quotes can be obtained at checkout. If not, you can email us at info@canadagrowsupplies.com for some more information on shipment. Items shipped internationally from the USA may have VAT, duties, taxes, and/or local charges due at delivery. These charges are the responsibility of the customer and not Canada Grow Supplies Inc.

Cancellations

If you need to cancel your order, we recommend reaching out to us ASAP. We charge a 2.9% (credit card), 3.5% (PayPal), 4.0% (PayPal International), 4.1% (American Express), or 6.5% (Shop Pay Installments or Sezzle) order cancellation fee after the order was received. We can accommodate most requests, but due to the different time zones and schedules that our warehouses ship from, sometimes the cancellation request may not reach the warehouse in time before the product ships. Once the item has been arranged to ship or has shipped, the package will be treated like a 'return' and is subject to ship-back fees and restocking fees. If you purchased 'Route Package Protection', this can not be refunded after the order has shipped.

Returns

In order to make sure you are completely satisfied, we can send you a return label within 14 days of receiving the order. This is to guarantee that you are happy with the product. Some products might require a 10-25% restocking fee. Please visit our full return policy.

Why Canada Grow Supplies?

We’re glad you clicked here. It means you’d like some reassurance and we totally understand that.

1. We’ve had thousands of shipped orders and satisfied customers.

We started our business in 2020 with the intention of creating a one-stop shop for growing supplies without letting customers wait for their orders. We saw the potential to serve customers of this industry way better than they’ve been treated in the past.

2. We’re a small, Canadian, family-owned business.

Our small team overlooks every customer and their orders to ensure they are satisfied with their products. We answer the phone and website chat, and if we don’t, we get back to you within 6 hours or less! We even throw in some freebies at random.

3. Free Discreet Shipping Available in Canada

We offer free shipping on all orders over 149$ Canada-wide. Many companies have a weight limit for free shipping, we don’t!

4. 100% Lowest Price on the Market - Price Match Guarantee

We keep the best prices on the market at all times. If the price respects the companies’ lowest retail price, we will definitely price-match any other Canadian website.

5. Reliable International Shipping

Nearly all of our brands can be shipped internationally using FedEx, UPS, USPS, DHL or similar couriers. Go through the checkout process to receive a shipping quote or contact us if a shipping quote is not available at checkout.

6. Easy financing and interest-free payments

Finance your purchase within minutes without paying interest!

Sezzle: Buy what you want today and pay for it over four installments, interest-free. Look for the Sezzle button at checkout. Get approved up to $2,500.

7. We are authorized resellers with manufacturer’s warranty

You will buy confidently from us since only sell new, official products (no used items or clones). All warranties are new are 100% honored through the respective manufacturer.

8. Safe, Secure and Discreet Transactions

We accept major credit cards and debit cards, PayPal, Google Pay, Apple Pay, Sezzle, bank transfers, and money orders. All card payments are processed through our encrypted SSL security processing system. Your identity is always protected.

9. Hassle-free returns

Just in case your purchase was not up to your standards, we offer return shipping if you are not 100% satisfied for any reason

10. Route Package Protection

Adding Route Package Protection to your order at checkout means that your order is protected against being lost, damaged, or stolen. In the unfortunate instance that you experience one of these inconveniences, you can report an issue with Route and they will work with you to make sure you get the resolution you prefer.

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