So long as the window gets enough light, the plants will grow. The main problem with this approach is light cycle. Most indoor growers use 18 hours of light to simulate spring, and 12 to simulate fall. Plants rely on a regular uninterupted light cycle to mature and reproduce (bud). You have to insure that this cycle is rock solid and dependable. in a window situation, you would be forced to block all inside light sources from waking up your plants. It could be as simple as shuting a door. You aslo would need a large pot. Where i am, febuary 28, is the average last frost, and a good time to start seedling indoors. If I were to rely on sunlight alone, i would not be able to harvest until late october or november. This is more than 7 months! You can just throw your seeds in a pot, water and hope for the best, but most sprout their seeds first.