Last year we took up a flower bed to grow veg. It was dug over several times. When we came to dig it this time round we found a huge rock & several house bricks. They could have been missed last year but I doubt it as OH is very thorough or do they come up through the bowels of the earth.
large items find their way to the top, just as the big bits do in a meusli packet!!
(the small particles find their way down, really, but it has the same effect)
;)
I always thought it was worms moving the soil out the way, taking dead materials down and the hard stuff came up.
Thats what I was told when I were a lad, still believe it to be true.
Silly old fool I am.
That would explain to me why 8 years after moving into a new house and having 2 feet of clay, builders rubble etc. removed and replaced with lorry loads of soil I still have bits of cement, bricks and other rubbish appearing in my flower borders.
That is a good question and I am sure that it is true that 'things' do rise up. In fact some archaelogical finds have been made as a result of this sort of 'movement'.
Fascinating isn't it?