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How much soil do I need please?

neilrob1neilrob1 Posts: 17
in Fruit & veg
Hi

I've got 2 new planters, and each has dimensions of 121 cm long, 51 cm wide, and 21 cm deep. Using an online calculator, it said I need 119 litres per planter. Another calculator said I needed 25kg per planter. A third one said 130 litres per planter

I'm pretty confused.........

Posts

  • BobTheGardenerBobTheGardener Posts: 11,385
    To be exact, it is 129.591 litres. :)
    A trowel in the hand is worth a thousand lost under a bush.
  • DovefromaboveDovefromabove Posts: 88,147
    Volume is the measurement you need ... the weight will depend on what you're going to fill it with ... MPV is light and fluffy ... good JI loam-based No 2 or 3 are heavy ... depending on what you're going to grow there, you may well need a mix of JI No 3, farmyard manure and grit ... 

    Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.





  • neilrob1neilrob1 Posts: 17
    Dovefromabove said:
    Volume is the measurement you need ... the weight will depend on what you're going to fill it with ... MPV is light and fluffy ... good JI loam-based No 2 or 3 are heavy ... depending on what you're going to grow there, you may well need a mix of JI No 3, farmyard manure and grit ... 

    Sorry what is MPV?
  • FireFire Posts: 19,096
    20 cm deep is pretty shallow. Do they have a base or are open to the soil?
  • DovefromaboveDovefromabove Posts: 88,147
    neilrob1 said:
    Dovefromabove said:
    Volume is the measurement you need ... the weight will depend on what you're going to fill it with ... MPV is light and fluffy ... good JI loam-based No 2 or 3 are heavy ... depending on what you're going to grow there, you may well need a mix of JI No 3, farmyard manure and grit ... 

    Sorry what is MPV?
    Sorry, my fault ... a typo MPC = Multi-purpose Compost ... fine for containers of summer bedding or short term veg pots etc ... but longer term planting needs something much more substantial.  

    Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.





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