Growing Hemp Home › Forums › Growing Hemp This topic has 2 replies, 2 voices, and was last updated 4 years, 2 months ago by dev7. Viewing 1 post (of 1 total) Author Posts March 18, 2019 at 12:01 am #2242 HempHappyMember 25,000 hemp plants can grow on an acre and each plant weighs about one pound. 14,000 acres of Colorado farmland are registered to grow industrial hemp. The lands will be in production in the future. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In