Plant strength scale idea

An idea hit me the other day.
Some plants grow more aggressively than others and so get labeled invasive or non-invasive.
Maybe a better idea would be to give a strength rating 1 to 10 for aggressiveness.
And of course that would vary by environmental factors, ph, soil type, light level etc.

The variables might make the aggressiveness number meaningless, don't know, but mabey.

Sounds like a good idea Jeff, you could start your list right here.

And welcome to permies!