The owner of the nursery said that this specific plumeria is 5 years old. It looks healthy to me but I'm not an expert. I checked it for firmness and it doesn't seem to have any rot signs. I am also impatient to see of it will bloom soon, I can see some shy buds. Should I fertilize it soon or should I wait a few weeks for it to adjust itself to the new home? They also said not to pot it up for at least one year. The moisture meter showed soil is still moist so no watering until next week I guess.
