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Plant Magic Oldtimer Organic PK 4/8


This all-natural organic PK boost increases fruiting, flowering, colour, flavour and aroma. For those of you looking to keep everything organic Plant Magic Old-timers PK is perfect for your crop!!


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Plant Magic Oldtimer Organic PK 4/8 - 1L:
Plant Magic Oldtimer Organic PK 4/8 - 5L:
Plant Magic Oldtimer Organic PK 4/8 - 10L:

Plant Magic Oldtimer Organic PK 4/8

Plant Magic Oldtimer Organic PK 4/8 is an all-natural, organic certified flowering booster designed to increase the number of flowering/fruiting sites, as well as maximise final harvest yield weights.

By providing your plants with increased levels of Phosphorous and Potassium they will be stimulated to produce heavier flowers or fruits, as well as enhancing essential oil production which in turn improves aromas.

Perfect for hobby growers, helps produce large and tasty yields - without the risk of shock.


How to Use:

  • Use 1-2ml per litre

For best results, we recommend using this in line with the Plant Magic Organic feeding chart, see feed chart tab.

Growing is an art form—but it needn’t be complicated. A straightforward process. Products you can trust. Consistent results. That’s Plant Magic.

Each product in our range targets a specific phase of your grow—optimised for British water profiles and balanced for maximum yield. Just what your plants need to develop their natural taste and aroma.

Our PhD-level biochemists select the highest quality ingredients for each batch made at our UK lab. No hormones, no PGRs. Just high-purity nutrients and additives. Backed by experience. Built on science.

We test every formula on our in-house grows and check every batch to ensure quality. If it’s not up to scratch, we simply don’t ship it.

Whether you’re just starting out, or you’re already a seasoned grower, Plant Magic has the tools you need for a healthy, well developed and high-yield crop—every time.


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Explore our top picks for stellar yields! Our best-sellers range from spacious grow tents and efficient LED grow lights to premium hydroponic nutrients and plant propagation must-haves. We have everything you need, no matter what you dream of growing!
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