3 feet, but a lot of gaps. The nuggets are starting to get dense and are really sugary, so despite the stretch and gaps, it should still add up to a decent harvest. Some of this is due to the variance in these f1 seeds. A couple of the plants have a distinctly tall, lanky habit, maybe reflecting the Sativa in their father's genes. But I also think heat stress caused some of this and that is something I must work on when rebuilding the grow rooms.