By Wsmith
Cornwall,
United Kingdom 
we also have several callistemons plant which we have had for about a year but all the leaves are falling off and some are dark brown we purchased it as it said it was evergreen all year round can any body help us, thanks
31 Jul, 2011
Answers
I'd say it may be due to the winter we had as well. I had two callistemon - a young plant (three years old) that was killed and a mature specimen where two thirds perished
31 Jul, 2011
Drought? Are they in pots or in the ground? Is it planted in a windy spot, or somewhere sunny and sheltered?
31 Jul, 2011