According to seed bank The Devil’s Harvest, breeder Grateful Head crossed Trainwreck with Sour Diesel and mixed in some Thai to create Casey Jones, a popular strain that takes diesely, earthy flavors from its parents.

The Devil’s Harvest says Casey Jones is fast-acting with an energizing effect. The strain won second place in Highlife Cannabis Cup in 2014 and third place in Spannabis 2013.