r/Caudex

I was gifted a pachypodium this year and it is growing well. My ID app says horombesense, but it could also be densiflorium. It was a costa farms plant, ive seen posts here saying they are usually densiflorium. But no flowers yet, so not for sure. But I'm in the front range of colorado, so my night temps are getting too cold (from what ive read) for it. And I know my winter temps will be far too cold. I do have a indoor set up for my succulents during winter, very strong grow lights, but I worry it won't get cold enough to trigger dormancy. Does anyone have suggestions of how I can give it the rest period it needs? I am thinking of repurposing my cannabis grow tent in my attatched garage for it and some of my cacti, but I'm not sure yet if I can maintain the temps needed (first winter in this house). Are there any growers here not in ideal outdoor climates that can give recommendations for dormancy set ups? Rough temperatures, how you do it, etc. Im sure it'd be more helpful with proper species ID but unfortunately I can't confirm it right now.