Planting new roses in an old bed
Knowing that I'm a mystery fan, a friend recommended that I check out Rosemary & Thyme on PBS. Imagine my surprise to find out that the two women protagonists were not only amateur detectives but professional gardeners. My two favorite things!
Anyway, in between finding out who murdered whom, they were trying to resusitate a rose bed where all the plants were dying. They finally tracked down where the dirt had come from and apparently it was from an old estate where it had been in the rose bed. And then they said that you can't put roses in dirt which had grown roses before as it will kill them. ????
Is this true? Normally I wouldn't worry too much about gardening information I get from a mystery show, but I'm planning on replacing two of my roses with new ones (expensive ones). The old roses aren't sick, one is just ugly and the other isn't thriving in zone 4/5; but if I plant the new roses where I have taken out the old, will that be a problem?