This is a disorder called run-off, which can be caused by high night temperatures (above 16c when they are in flower). Give the plants a really good soaking at the roots and squirt water over the plants (aiming at the flowers) each evening.
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.
Royal Botanic Gardens, Kew
Richmond, United Kingdom
RHS Harlow Carr
Harrogate, United Kingdom
Royal Botanic Garden Sydney
Sydney, Australia
Pukekura Park
New Plymouth, New Zealand
The New York Botanical Garden
New York, United States
Koishikawa Korakuen Gardens
Tokyo, Japan