I have an unknown sativa among my crop. It's buds are purple as can be. Yesterday whan i was checking trichs on my plants I found this particular plants trichomes are purple. I thought I was seeing things so I took a lower bud to get a better look in a more comfortable spot, and i'll be if they are not purple. The fluid in the trichs are all purple has any one have any idea what this plant might be? How will I know when it is finished. any help