Wordnet Dictionary - Latitude - [n] an imaginary line around the Earth parallel to the equator. So Razer's right.

As for the weed. "Botanically, cannabis is classified as a short-day plants(SDP). This means they must have a light period shorter than a critical length to flower." Which means in English, under 18/6 there is a chance a plant may flower on it's own, under 24/7 it should never happen. But nature likes things that should never happen.

Every silver lining has a cloud.