Winner High Times Cannabis Cup 2006. Greenhouse Ultra Haze #1 genetics are Neville's Haze, Cambodian, Laos. It has a strong sativa high, a rocket fuel! Its effect is a very psychedelic feeling. Flowering indoors takes about 13 weeks and its cannabis seeds will deliver ripe sativa buds with heavy density and amazing resin. Expect a yield up to 900gr/sqm. Flowering outdoor: Ready at the end of November in the Northern hemisphere and in June in the Southern one. Massive yield: up to 1300 gr/plant.