High Times Presents: The U.S. Cannabis Cup

Carbon Dioxide

Insider's Grow: CO2 and O2 in Cannabis Production

Marijuana growers spend considerable time and even money delivering the right elements their crops need for growth through specialty fertilizers and supplements. Outdoor crops receive free stuff versus indoor crops -- for example the sun is free and so are oxyge...

Notice

Important notice for Seattle US Cannabis Cup attendees.
A company calling itself High Times Travel LLC (hightimestravel.com) has illegally infringed on the HIGH TIMES trademark to sell travel packages for the upcoming US Cup in Seattle.

This company is not affiliated with HIGH TIMES Magazine in any way. If you have purchased a travel package from High Times Travel LLC please contact HIGH TIMES immediately by emailing us at travelcomplaint@hightimes.com