C. amethystoglossa seed. Depends on reflasking methods.
A. Germination flask 5-6 months. Mother flask 4-6 months. First reflasking 4-6 months. Final reflasking 6-8 months. Total time 19-26 months.
B. Germination 5-6 months. Mother flask 6-8 months. Final flask 8-10 months. Total time 19-24 months.
There are other methods. But these are common methods. So about 2 years to planting out of flask.