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Plant Magic Oldtimer PK 4/8

Regular price £31.46 £34.95 | Save £3.49 (9% off)
Tax included. Shipping calculated at checkout.
In Stock
SKU: 2309
Spend £50.00 more for free delivery (shipping surcharges still apply)

Plant Magic Oldtimer PK 4/8

1l - £31.46
  • 1l - £31.46
  • 5l

Plant Magic Oldtimer PK 4/8


Plant Magic Oldtimer PK 4-8 is a naturally enhanced organic PK booster that will increase fruiting and flowering production.

  • Optimised PK ratio for bigger harvests
  • Vital phosphorous for efficient plant energy management
  • High potassium content for more colourful fruit and increased BRIX (sucrose) levels
  • Suitable for use with any crop type in soil, in both hard or soft water areas

Containing double the amount of potassium to phosphorous, often called the 'magic' ratio for flowering boosters, Oldtimer PK 4-8 is up there with the best organic flowering boosters on the market. The optimised levels of phosphorous and potassium ensure crops full of flavour and aroma - delivering quality results and is a great overall choice for organic growers.

How to use Plant Magic Oldtimer PK 4-8:

  • Shake well before use.
  • Apply at a dilution rate of 1-2ml per litre from the start of week 4 of the flowering/bloom cycle, until the flushing stage.
  • Please refer to the feed schedule for more information (see downloads below).

Plant Magic has been delivering good, consistent results for many years - the Oldtimer range is no different and Oldtimer PK 4-8 remains a solid choice for organic growers. Recommended.

Best Practices:

  • Use clean measuring instruments - do not put anything into the bottle.
  • Optimal pH range: 5.5 - 6.2
  • For best results, monitor EC regularly and adjust accordingly based on crop type and growth stage.
  • Store away from direct sunlight, closed in its original packaging between 5°C and 25°C.
  • Once open, use within 6 months for best results. Use within 2 years of production date (see cap or bottle).



Delivery Information

Most orders are shipped within 24 hours.

Orders are currently shipped with Parcelforce (Express 24 service for standard and heavy/bulky items) or DPD Local (Premium next-day), a signature will be required on delivery. We have been shipping orders for 15 years and our courier choices are subject to change as service levels fluctuate.

All orders are shipped on a next day courier service – you will be informed via email or SMS the evening your order leaves us so you know to expect it the next day. On the morning of delivery you will get another SMS or email informing you of the expected delivery time.

If you have any questions on delivery please get in touch.

As the website calculates some charges by weight it is possible that shipping is not calculated correctly. We reserve the right to get in touch in these circumstances we will request the additional amount or offer to refund the order.

UK Delivery

Standard delivery to the UK Mainland addresses (excluding Scottish Highlands & Islands, offshore and N.I.) is charged at a flat rate of just £5.95 per order or £7.95 (for the premium next-day service), standard delivery (with Parcelforce) is free* for orders over £50.

*Large and/or heavy items attact a surcharge from our courier - shipping surcharges are calculated per item and are applied regardless of order value.

Non-UK mainland destinations are charged by weight.

International Delivery

Coming soon…

Collect in Store (Bristol)

We now offer a 'collect in store' option, which allows you to pay for goods online and collect from our Bristol store at time that suits you (within our opening hours).

The process is simple:

  1. place your order and pay online, select 'Pick Up' at checkout;
  2. receive an email confirming that the order is ready for collection;
  3. bring/show your confirmation email and photo ID to collect your order.


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