The origins of Purple Urkle, one of the most well-known indica strains, are still mostly a mystery. What is known is that the strain dates back to the 1980s and was initially grown in northern California's Emerald Triangle (Humboldt County). It is sometimes referred to as "The Urkle" and is frequently called "Purple Urple." While most seasoned cannabis producers in the Emerald Triangle region tend to keep their hybrids and genetics to themselves, most cultivators believe Purple Urkle was a phenotype of either Mendocino Purps or Granddaddy Purple. Particularly when grown outdoors, Purple Urkle grows quite slowly. While indoor blossoming might take as little as 8 weeks, outdoor flowering often takes a full 5 months. The strain continues to be rather short and stocky, similar to many indicas, with somewhat below-average yields. On an indoor grow, you can anticipate 1-2 ounces per plant and about 1/2 pound per plant on an outdoor grow.