Broadleaf P4 Water Storing Granules

Broadleaf P4

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Trees & Hedging
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Non-trade pricing

Size Form Price £ each
(ex. VAT)
250g Tub 5.00
2kg Tub 30.00
10kg Tub 137.27

Trade / wholesale enquiries

Discounted trade / wholesale prices are available upon request.
Please contact the office for a quotation or a trade price list.

Minimum order values
Please note that there is a minimum order value of £50.00 + VAT, excluding delivery, for existing customers and £75.00 + VAT, excluding delivery, for new customers. Orders under those values can be placed via Trees & Hedging, our online webshop.


Delivery to UK mainland is included for stock orders over £750 + VAT (subject to postcode surcharges). For full details on delivery, please view our delivery page.


This can dramatically reduce plant losses due to moisture stress and improves establishment and growth. Works well in conjunction with Rootgrow.

Broadleaf P4 is a granular polymer which can absorb hundreds of times its own weight of water.

When the granules come into contact with water they absorb it, swelling to form discrete particles of water-charged gel. Incorporated into soil (or compost) the polymer granules act as thousands of tiny reservoirs of "contained" rain or irrigation water. Plant roots colonise these reservoirs of water-charged gel and can extract over 95% of the stored water as required, over an extended period of time.

Broadleaf P4 is inert, safe for all plant species in all types of growing media and is non-contaminating; is durable in most growing conditions, giving years of environmental benefit.

Application rate

We recommend an application rate of 2 grams per bareroot plant or equally you could work on 1 gram of granules to be mixed in with 1 litre of compost or soil.

Application method

  • Put your compost/soil into a container and sprinkle the required amount of Broadleaf P4 granules on the top.
  • Make sure that your hands are very dry (or wear dry gloves) and mix the P4 into the compost so it is evenly spread.
  • Put your compost/P4 mix into whatever you are planting into (prepared whole in the ground or a container), but do not plant anything yet.
  • If it is a container, ensure there is a sufficient gap at the top to allow for the P4 to swell to avoid an overflow.
  • Water the compost to capacity and leave for an hour or so. Top up with more water to make sure the granules are fully hydrated.
  • Plant your seeds or plants as normal.
  • You can now safely relax - the need to water is usually reduced around 75%, so once or twice a week is often sufficient.
  • Keep an eye on your plants and water whenever they show signs of wilting.