Posted: 17/12/2014 at 06:40
All this JI 3 etc. Might I pose as a farmer. I have three thousand fruit trees to plant. Please friends. Could you for one minute think that as such, I would first buy tons of JI No. 3 compost?
Look I am aware that I am not MR Popular on this site but. Hey you folks must be made of money.
Speaking as a member of a farming family - commercial fruit growers in the UK do not grow fruit trees in pots - they select and prepare the land where they are going to plant, putting in correct drainage and incorporate organic matter and fertiliser. Only then do they plant their orchard.
They do not plant valuable trees in multi-purpose compost or in unprepared/unsuitable land. They buy prime agricultural land, the price of which carries a premium.
The correct preparation of the soil is expensive - so is buying the best quality plants. A farmer's livelihood depends on their crop and as all farmers know, 'you get out what you put in'.
The equivalent to this for the gardener is to purchase the best quality trees and plant them in the best and most suitable compost that will provide the trees with the soil conditions and nourishment they need.
MPC will not do that job.
Also, MPC is so lightweight that in a wind a tree (which by nature is top-heavy) planted in a pot of MPC will be likely to blow over and be damaged.