How many letters does the top answer for “a number of animals or plants living or growing together, beyond their usual range.” have?

The most common answer is colony (6 letters).

Crossword clue: a number of animals or plants living or growing together, beyond their usual range.

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

colony 6 letters web-def

a body of people who settle far from home but maintain ties with their homeland; inhabitants remain nationals of their h