Can I plant Old roses where roses have grown before?
Roses often fail if they are replanted where they have been growing before, or where other roses have been growing. This is probably caused by a build-up of pathogens and a lack of fertility. The planting position should be dug over to remove as much old root as possible. It should then be sterilised using one part of formaldehyde to 50 parts of water applied with a watering can and left undisturbed for 6 weeks. After this the position should be trenched and manured.
