We built these beds over the last few weeks of Autumn 2010. They have been left 'fallow' for the weed seedlings etc to grow and hoed, flame gunned, wedkillered off.
The soil is probably neutral, but the rocks themselves have lime mortar on them which is slowly weathering into the soil. The soil is deep and very well drained. The rocks themselves are glacial erratics of which this garden has a fair number. Feel I am ok asking this on the SRGC site as some of the rocks are from Western Scotland according to a geologist visitor. The larger bed is about 12 feet wide at the top, the smaller one about 5 feet.
The beds face West. They will almost certainly be lightly shaded by fruit trees some way in front of them. The larger one is sheltered from the East by a huge stand of Bamboo and Miscanthus, The smaller one is more open but will eventually be sheltered as the plants in the bed on the East side grow.
So the question is what to grow in them? I do have a prostrate Yew and a new conifer called Whipcord which will go on one side, but we had not even considered plants when we built them. Any suggestions?