By Meadowland
Monmouthshire ,
United Kingdom 
I have noticed a few "branches" of the Diosma shrub have turned yellow.......read that it might be lack of iron,so fed it with an ericaeous solution plus added some ericaceous soil......has anyone had the same problem?
On plant
Diosma
2 Apr, 2015
Answers
Agree with Landgirl - cold weather damage, not shortage of iron - the rest of the plant, beneath the damage, looks perfectly healthy and non chlorotic.
3 Apr, 2015
It looks frosted to me. Diosma is from South Africa and may not be fully hardy in the UK.
2 Apr, 2015