A product called Sulphur Rose (sold as a rose tonic) helps prevent the development of fungal spores from both blackspot and powdery mildew, as well as improving the overall growth of the plant.
Gardening Expert: |
If you can't find what you are looking for on the website then you can ask one of our experts. To get in touch with us Click Here
We will try to get back to you with an answer as soon as we can.
Did you find this answer useful? Subscribe to our newsletter for gardeing news, projects, special offers and competitions.
Humble Administrator's Garden
Suzhou, China
Saint Petersburg Botanical Garden
Saint Petersburg, Russia
RHS Garden, Wisley
Woking, United Kingdom
Monet's Garden, Giverny
Giverny, France
Medellin Botanical Garden
Medellin, Columbia
Rio de Janeiro Botanical Gardens
Rio de Janeiro, Brazil