All the leaves have fallen and the root is very thick. Do you think the plant is dead? |
If the plant had no other symptoms and suddenly dropped its leaves, it sounds as though your aralia was quite stressed either from too much or too little water, or from over-exposure to heat or cold. I would give it the benefit of the doubt and continue watering it regularly, as though it were still healthy. It may recover and develop new foliage. Hope so! |