Why has my rhododendren gone 'thin' and leggy. I don't know the variety only that is has been in the garden for over 40 years. It is about 5 ft high and has pale pink flowers in late April early May. I mulch it with ericacious compost each year and water in special fertiliser after flowering but though it has buds on it, it is much less bushy since last spring. Is it on its way out? Is it old age?
- 11 Mar, 2012