Cannabis Afghan is by far my most favorite marijuana strain. Afghanica Strains originated in Afghanistan. Cannabis afghanica plants are short in size and dark green in color. many people confuse afghanica with indica. Afghan strains are very dense and contain a very high level of THC, making this a great plant to grow for hashish (hash). Many strains like Hash Plant are used in cross-breeding for its high resin levels. I am personally growing a room full of Afghan #1 that was grown from seed. I would say that Afghans are by far one of the most easy to grow strains available.