- Grow some 'sentinel conifers' in the wrong place for 12 years
- Eventually get around to getting a man in to remove them
- Ask him to leave a massive pile of branches so you can make lots and lots (and lots!) of mulch
- Have the wettest spring and summer on record so you can't shred the branches straight away
- After several months, finally get the patio cleared of all debris
- Et voila!
The difference to the naked eye is even more marked than the camera picked up yesterday. I'm pondering whether it's covering up the patio, the acidity from the wet branches or both factors which have cleaned the black lichen from the slabs.
Just in case we have another 'wettest drought on record' with its accompanying hosepipe ban, it's worth remembering this approach doesn't use any tap water ;)