Society interest in ornamental non-native plant species classified by their invasion status. STV: Standard Trend Value. P-values for Tukey’s range tests: not in the wild – casual: p = 0.373; not in the wild – naturalised: p = 0.783; not in the wild – invasive: p = 0.436; casual – naturalised: p = 0.794; casual – invasive: p = 1; naturalised – invasive: p = 0.860.