GrowHard PK Boost

Save $11.00

Size: 1L
Price:
Sale price$19.00 Regular price$30.00

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Stock:
In stock

Description

PK BOOST – Bigger Blooms, Better Yields

Formulated to meet the high demand for phosphorus and potassium during flowering, PK BOOST supports larger flowers and improved yields when it matters most.

Directions:

Add 1–2 mL per litre of nutrient solution
Use during week 4 & 5 of flowering

🌸 Boost flower size, strength, and productivity.

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Customer Reviews

Jasper H. 13/09/2025

I'm blown away by the quality of this. It's a proper piece of equipment. Five stars from me.

Rose I. 14/09/2025

This is a must-have for any serious grower. It's made a huge difference to my setup.

Albie J. 15/09/2025

Top-notch stuff. You can feel the quality. It's a proper piece of equipment that's built to last.

Liam R. 18/06/2025

Absolutely brilliant product! Exceeded my expectations in every way. The quality is top-notch and it works perfectly. Cheers to the team for the great service.

Chloe T. 10/06/2025

Been using this for a few weeks now and I'm seriously impressed. Solid build and does exactly what it says on the tin. My plants have never looked healthier.

Noah J. 19/06/2025

Absolute game-changer. Fair dinkum, this is the best bit of kit I've bought in ages. Does exactly what you need it to do, no mucking about. Too easy!

Olivia C. 11/06/2025

Really happy with this. The quality is ace and the price was spot on. The team in Sunshine North were super helpful when I called up with a question.

Isla M. 20/06/2025

Deadset legend, this product. Took my grow to the next level. So glad I found this site, the range is massive. Will be back for more.

Henry G. 12/06/2025

Quality is unreal. You can tell it's not cheap rubbish. It's a proper bit of gear that does the job well. Postage was lightning fast too.

Mark T. 23/06/2025

Heaps good! Does the job perfectly and didn't cost an arm and a leg. Arrived in Brissy super quick. Can't complain.

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