This feminised plant will grow over 1 metre tall indoors, but can stretch to 2 metres outside. It prefers a warm environment like California or Italy, however, it can be grown in south of France and Germany, while more northern latitudes are not recommended for this marijuana strain. Power Plant was the original large-yielding commercial crop and Royal Queen Seeds are proud to say that Power Flower is just as big.The yield to expect is anything from 45- 65 grams per plant, or up to 550 grams per square metre.