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.
Apply Stack from the final week of vegetative growth to week 4-5 of flowering, or once plants stop growing vertically.
Mix 1-2ml per gallon of water in a weekly mix. May be mixed with regular fertilizer recipe. Add last to reservoir.
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.
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.
Mix 4ml per gallon water and soak seed for 1-2 minutes before planting. Stack may increase germination rates and plant vigor.
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At present we only ship to UK and Northern Ireland.
Yes. When we dispatch your order for delivery you will receive a unique tracking number by email. Once in receipt of this tracking number you can check the current status of your delivery.
All your purchases are insured against theft and accidental damage whilst in transit from Great Stuff Hydroponics to your delivery address. Once your package has been delivered and signed for at your specified address, it is no longer covered. To ensure that your purchases arrive safely and in perfect condition, we require proof of delivery for all orders and are unable to authorise for packages to be delivered without a signature.
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Before you return an item please email us at email@example.com to let us know and put a note in with the items you are returning with all your details and order number and reason for return.
When returning items you are strongly recommended to obtain proof of posting as we cannot accept responsibility for parcels lost in transit. We will only refund the cost of postage where the item returned is faulty.
All correctly returned items will be refunded to the original purchaser’s credit card excluding all shipping costs, international customs duties and sales taxes. Please note that card refunds may take up to 10 business days for your bank to complete, this can vary between card issuers. We will only refund the cost of postage where the item returned is faulty.
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