[Deano27]

Hi, i'm adding 2 more raised beds to the 4 I currently have.  last time i filled them with topsoil, however I can buy compost in bulk cheaper than topsoil this time.  is compost on its own suitable, or should i ensure of mix of both?

[richyrich7]

I used multi-purp on it's own 1st year on ours at home they where only small so took 4-5 145l bales each !

[WG.]

I'd go for a mix since topsoil will have more minerals.   Either that or add rock dust to the compost.  http://www.seercentre.org.uk/rockdust.htm

[Sally A]

Why not mix it up with the soil in the 4 beds, so that you have 6 beds of 2/3 soil 1/3 compost.

[Ice]

Why not mix it up with the soil in the 4 beds, so that you have 6 beds of 2/3 soil 1/3 compost.

That's about the ratio of my first one last year and it worked really well.

[John]

I'd say go for the compost judging by the results people got on our site.  I've got soil with a goodly layer of compost on top going in my new beds.