That isn't true at all. Trees become mature at different rates, which also depends on climate. In temperate climate with sub-zero winter, a fast growing specie

That isn't true at all. Trees become mature at different rates, which also depends on climate. In temperate climate with sub-zero winter, a fast growing species, like poplar trees and spruces, will take 10 years to start producing flower. And while a yellow poplar lives on average 250 years, the hybrid poplar live 50 years. White spruce easily live pass 300 years, while black spruce seldom reach 300 years. Edit: network effect has nothing to do with a tree maturation or lifespan, but everything to do with creating an ecosystem. A single row of trees in the city creates an local ecosystem. The Houston medical area is a good example of that: https://news.rice.edu/2019/09/06/pain-in-the-asp-rice-ecologists-find-bird-deterring-nets-create-haven-for-stinging-pests/ https://news.rice.edu/2019/09/06/pain-in-the-asp-rice-ecolog...