Moved to a house with a decent sized garden, mainly lawn but with border round 2 sides of the lawn about 18" - 2' deep. The elderly previous owner had covered the border with bubble wrap, covered that with gravel and then put a variety of pots on top (most of which have been left for us) so that it would be easier for him to deal with.
Pots are not great for us as we have a lot to do renovating the house so remembering to water comes a long way down on the list. We would like to re-establish the borders and plant some shrubs so that it looks after itself rather more. The earth underneath the bubblewrap looks rather grey and sorry for itself so I assume we will need to dig it out and put some compost in it.
My big question is when should we do this? Now? Winter? Spring? How do we best prepare the soil and how long after preparing the border should we plant? Any recommendations for a good book to read?