Purple black plant proudly made in USA. Observe Memorial Day.

Something about my basement influences plants to purple; even my cilantro is purple topped. I can take no credit other than having a cold room. This plant was a seed in dirt on December 16. Typical night temps in January and February were 56-58o F. Seed came from commercial diesel-ish. About to harvest on Tuesday.

The first three pics are from 5/5/15. The rest, including the microscope shots, were taken today. $10 bill and flag are for color comparison. Want purple? Grow cold and be lucky.

Nice pics man.What strain?

My dark devil, luckily, turned purple even with hot temps. Thank goodness for those genetics.

Looks like some kind of Kush? awesome color! I doubt I could get my indoor temps that low even if I had Jack Frost minding my cabinet... Southern life..... For purple, I have to buy purple and hope it stays true. Nice job =)

The seed was a rando out of a bag of what smells and tastes like a diesel/kush mix, but it has never been purple and my guy consistently delivers the same product. It's not the first time I've grown purple from seeds that came from green weed, contributing to the theory that purple is mostly low temp induced and not genetic.

Thanks for saying 'nice job', and for growing the plant healthy I can take some credit. Being hot is not a problem with the right strain. Last year in August I had a sativa loving 106o at the canopy; her buds grew very quickly at that stage in that heat.

I don't know much about growing, so I asked a pro farmer friend for advice on nutes, silicon, mycorhizae and such. He looked at me like I was a little nuts and said, "All I've learned is, water them from the bottom up". His droll advice underscores how plants grow themselves if we provide an acceptable environment, and then get out of the way.