Outdoor auto flower

I'm in the middle of my first outdoor grow. Got a variety of beans from Barneys in 5 gal pots with a living soil feeding them compost tea once a week. Every strain is is exploding. I couldn't be happier with things so far. My question pertains to what I think are a couple of auto flowers that got mix in to my order. I have this gorilla zkittles plant that is swelling with resin covered buds. Is there a specific time limit for harvesting these plants or do I just treat it like any other plant? Probably a stupid question but I never grew auto flower.