Indoor Cannabis Growing:
Most indoor cannabis growers have a tent (or room) which contains a light, carbon filter and an air extraction fan. Temperature should be kept around 25°C which allows the plants to grow in optimum conditions and produce good quality cannabis. The most common mistakes made by indoor growers are over-watering and over-feeding their plants.
Outdoor Cannabis Growing:
Just find a sunny growing spot with good quality soil. Seeds can be started indoors and planted out when they are a couple of weeks old. In reasonable conditions good outdoor variety can reach 3 meters tall and produce over 1Kg of buds. Outdoor growers often say that outdoor grown cannabis has the best taste and effects.
In cooler climates a greenhouse or polytunnel will extend the growing season and make it easier to grow cannabis by protecting your plants from the worst of the early Spring and late Autumn weather.