Final answer:
Hair growth doesn't have a 'latent' phase, but it does have a resting period known as the telogen phase, which lasts 2-4 months and is followed by the active anagen phase.
Step-by-step explanation:
The latency phase mentioned in the context of hair growth doesn't exist as such. However, hair does grow in specific phases. The most fitting could maybe be the telogen phase, a resting period where no active growth of hair occurs. This lasts about 2 to 4 months. This phase is followed by the anagen phase, where the basal cells in the hair matrix produce a new follicle, pushing the old hair out as the cycle repeats itself.
Learn more about Hair Growth Cycle