what is the exact time it take for lemon tree to fruit ?

Question

lemon tree and time it takes to starting flowers

Answer 1

To flower = 12 yrs 2weeks 3 hours and 17 minutes. To fruit = 12 years 6 weeks 14 hours and 10 minutes.

Seriously, it takes about 10 years but that time can move 2 or 3 years forward or back depending on the temperature, humidity, amount of sun, amount of water, and nutrients available during that span of time and whether or not it ever gets a disease or pest problem. There is no exact time.

If it's an ornamental dwarf houseplant there still is no exact time.