Thank you Star. That is my purple envy mother. I first got that strain as freebies with a seed purchase. I didn't have high expectations at all. It blew everything else away. Very easy to grow as well.
EDIT: I actually gave that particular plant to Zapadra, and he very graciously gave it back to me when he realized how disappointed I was that I hadn't bothered to take clones off them.
Let me know if you find one Evergreen. If I were to buy sour diesel seeds now, I would probably opt for Reserva Privada. I did order some OG#18, which is supposed to be quite sour with bigger yields.