Plant Magic – Old Timer Organic PK 4-8 (1L)

£24.00

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  • Organic PK boost for phenomenal aromas and sweetness
  • Enhances weight and essential oil content for greater yield
  • Derived from plant material, harnessing the power of nature
  • Use at half dose from week 2 of bloom phase to increase flowering sites
  • Dilution rate: 1-2ml per litre


Introducing the latest innovation in the Plant Magic Oldtimer range: Organic PK 4-8. Specifically crafted to complement Oldtimer Grow and Bloom, PK 4-8 provides your plants with a potent blend of organic potassium and phosphorus, igniting robust growth and enhancing flower production and yields.

How It Works

Elevating potassium and phosphorus levels during the bloom phase is crucial for maximising yields in flowering and fruiting plants. Yet, achieving this organically can be challenging. Thankfully, the expert team at Plant Magic has developed a nearly fully organic PK flowering booster. The added phosphorus stimulates exceptional harvests and boosts the production of essential oils, while also facilitating nutrient uptake and transport. Additionally, it plays a vital role in the ripening process. The supplemental potassium contributes to the development of vibrant, colourful fruits and elevates BRIX levels for optimal sweetness.

How To Use Plant Magic Old Timer Organic PK 4-8

Oldtimer PK is ideally suited for soil-grown plants. Follow the Plant Magic feeding schedule, incorporating PK 4-8 during the last 4 weeks of the flowering stage at a recommended rate of 1-2ml per litre.

For optimal results with organic products, we highly recommend using Ecothrive Neutralise to eliminate chlorine and other contaminants from your water, ensuring maximum efficacy.

Unlike some competing organic brands, Oldtimer PK is compatible with automated watering systems, including drippers. However, it’s essential to monitor for potential blockages in your pipework. Utilising a recirculating pump in the reservoir when using organic nutrients can help mitigate this risk.