How long does it take for mini lops to become mature?

I am going to breed bunnies. I'm going to buy them next week! I was wondering, how old would mini lops be when they are fully mature and ready to breed! I've looked on websites, and they say it depends on the breed SO I want to know specifically for mini lops :-)|||around 6-8 months. i'd wait till they were around 8 months old, to tell if your female is in heat, just lightly squeeze her back hips w/ your hand, if she is in heat, she'll lift up her butt %26amp; tail.