The leaves are drying up. It's putting out new growth but it also shrivels up and dies. It's almost all dead. I've ruled out climate, watering, fertilizer, fungus, insects. I hate to lose it as it has been beautiful. Help!
3 Yr Old Cassia Bush
Certified GKH Gardening Expert
Perhaps a toxin could be damaging your cassia bush? If it is located near a road (where salts or leaking oil could be a problem) or a property where herbicides or certain insecticides have been used, these chemicals could have reached your plant's root system or foliage. Check these articles to see if the symptoms match: