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  • Coir compost block
  • Coir compost block
  • Coir compost block

Coir compost block

£12.99
£12.99
Quantity
  • Lightweight alternative to heavy compost sacks
  • Just add water - expands to 6x volume
  • Tried and tested by commercial growers

Perfect for small space growers, these 5kg Growlite coir blocks expand up to 60L in water to produce a peat-free growing medium ideal for seed trays, pots, containers and hydroponics.

No more struggling home from the garden centre - each Growlite block is just a quarter of the weight of a traditional compost sack. The convenient blocks are also cleaner and more hygienic to handle and store than other media.

To hydrate, break off a small amount or place the whole block in a large tub, barrow or tough plastic sack, add water and let it soak. Within an hour, it will have soaked up the water and grown to around 6 times its volume.

Break it up as it expands, adding more water as needed to ensure even moistening (each 5kg block will need around 18L). When finished it should be wet but springy, like a wrung-out sponge.

After 2-3 months, add plant food or slow release fertiliser to sustain your plants for up to 6 months. Take care not to over water - the surface of these blocks will dry out but Growlite holds water well at root level.
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