How fast does Zeon Zoysia spread?

Could you elaborate on the rate of expansion or growth for Zeon Zoysia? Specifically, are we talking about a gradual spread over several years, or does it propagate at a more rapid pace? Understanding its proliferation rate would help us assess its potential impact on the environment or any surrounding areas, as well as any potential management strategies that may be required. Is there any scientific data or research available that provides insight into its growth rate?