Stack is a natural plant nutrient made from kelp extract. The nutrients in Stack encourage healthy growth and flowering. Stack gives the plant tools to reach its full genetic potential. When used as a foliar or root drench, Stack helps correct minor potassium deficiencies.

Instructions for use:
May be used as a foliar spray or root drench, one application weekly. Safe for use in irrigation systems. Stack contains organic ingredients and may separate in storage. Shake well before use.

Application Timing:
Apply Stack from the final week of vegetative growth to week 4-5 of flowering, or once plants stop growing vertically.

Root Drench:
Mix 1-2ml per gallon of water in a weekly mix. May be mixed with regular fertilizer recipe. Add last to reservoir.

Foliar Spray:
Mix 7ml per gallon water and spray thoroughly once weekly. Spray with lights off and allow to dry before turning on. Do not spray past week 3 flower.

Transplant Use:
Mix 2ml per gallon water and bare root soak for 30-60 seconds prior to transplanting or water in solution after transplanting. Stack may reduce transplant stress and improves plant vigor.

Seed Treatment:
Mix 4ml per gallon water and soak seed for 1-2 minutes before planting. Stack may increase germination rates and plant vigor.

PLEASE NOTE: SEPERATE RATES APPLY FOR CLOTHING AND CANVASES
HEAD TO CHECKOUT FOR SHIPPING CALCULATIONS ON THESE PRODUCTS

Local Delivery (Coburg North Store)

Within 5kms - Free ($40.00 minimum order value)
Up to 30kms - $25 Flat Rate or FREE if you spend a minimum of $150

Bendigo Region Local Delivery

Free delivery for orders over $150

Shipping Australia wide 

Standard Items

Bulky Items

*Timeframe begins when items have been sent out for delivery.
Processing of order can take up to 3 business days.

NO SHIPPING AVAILABLE OUTSIDE AUSTRALIA

Shipping information

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

Please allow up to 3 business days for your order to be processed, though we aim to process all orders within 24 hours.

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@hydrohq.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