19/03/2026
Botrytis, also known as grey mould...what is it and what can I do about it?
Botrytis cinerea is a fungal disease that appears as soft brown spots on petals, especially roses. several days of cool humid, cloudy or rainy weather create an ideal environment for botrytis. What can you do when you receive flowers with Botrytis?
There is nothing you can do, removing affected petals may make the flowers look better for a while, but once infected it will spread repidly!
As a florist, if you received affected flowers they must be destroyed. Good hygiene is esential
Discuss this with your grower, then If you continue to receive affected flowers then it is obviously a quality control issue.
Remove sleeves on arrival, statice, stock, delphinium, asters, lisianthus and roses must have free flow of air
For more information go to What Cut Flower is That?. Page 195