In the 1930s, Congress was told by the Federal Bureau of Narcotics that many Polish-Americans still grew pot in their backyards to make their winter "long johns" and work clothes, and greeted the agents with s shotguns for stealing their next year's clothes. The age and density of the hemp patch influences fiber quality female cannabis seeds. If a farmer wanted soft linen-quality fibers he would plant his cannabis close together. As a rule of thumb, if you plant for medical or recreational use, you plant one seed per five square yards. When planted for seed: four to five feet apart.