Grotek Gro-Silic™ is a concentrated liquid silicon supplement suitable for soilless and hydroponic systems. This plant-available form of silicon (monosilicic acid) 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.

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

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.).

Use collapsible tabs for more detailed information that will help customers make a purchasing decision.

Ex: Shipping and return policies, size guides, and other common questions.

Local Delivery (Coburg North Store)

Within 50kms - Free ($40.00 minimum order value)

Shipping Australia wide 

Standard Items

We have fixed price delivery options available:

Standard: $7.95 - Next Day Dispatch
Queue Jump: $11.00 - Same Day Dispatch (Orders must be placed prior to 12pm)

----------------------------------------------------------------

Bulky Items

$150 flat rate on bulky item orders within Australia

---------------------------------------------------------------- 

NO SHIPPING AVAILABLE OUTSIDE AUSTRALIA

Shipping information

Depending on the items, Northern Organics will either utilise Australia Post or private courier companies to deliver your items. When shipped, tracking numbers will be provided to you.

Incorrect information

Once your order has been placed no changes are able to be made. Please double check your shipping address is correct before confirming your order. Business addresses must include the business name.

If parcels are not collected, or are required to be returned to sender due to insufficient or incorrect information, postage costs are unable to be refunded. Once you have placed your order, you are committing to the sale and declaring that all information entered including the shipping address is correct.

If you do find you have entered incorrect shipping information please email us ASAP at getit@northernorganics.com.au and we will attempt to correct the mistake.

Store Pickup

If you are unable to collect from Coburg North, Victoria, DO NOT pick this option, as your parcel will be placed in our store.

You will be sent a text message when your parcel is ready to be picked up at the address below. Please ensure to bring your receipt to pick up your purchase.

1/33 Catherine Street, Coburg North, Victoria 3058