Euphorbia x martinii
I think my Euphorbia x martinii has developed rust (picture attached). I have read on the RHS that they are generally unaffected by disease or pest but can suffer rust.
This plant has been healthy for the last 3 year. Is this just a weather thing this year? It was cut back earlier in the year after flowering but as you can see is starting to produce the new bracts - should I cut these of so late in the year to remove the affected stems.
- 29 Sep, 2012