I have this Brachyglottis in the pot on my patio for 3-4 years. My patio on the north side so the plant never blooms, for sure not enough sun and mybe too young. But I'm content with that plant even without flowers, leaves have a beautiful gray color. This year I can see that something wrong is going on. New leaves are shriveling and even I found something brown inside of them. What can I do? I cut so unusual-looking ends on every branch so the disease may not spread. Do I have to get rid of this plant? Is it dangerous to others?