What an excellent web site! We need some help please. This plant has had almost daily flowers and gets tons of sunlight (two 10x13' windows) It is winter here and we've noticed lately the plant not looking 'healthy'. Seems excessive leaf dropping (5 to six leaves a day). They discolor, spot, curl and then drop. The plant has been in same spot for few years, with a slight rotation every 2 months (turn so other side gets the window). The spots do not wipe off (non-fungus?)
The plant is watered twice a week (wed/sun) 2 litres each time.
The planter is 16" across and 29" deep (its open to the base)
It was fertilized in September with a slow release pellet (Miracle Gro)
Pruning happens whenever it looks like its getting leggy (to keep shape)
no spider mites or other insect visible.
Appreciate any help as we love this plant and are worried