You would want to flush and use no nutes for the last 2 weeks, however. Also, Greenhouse has a really odd lineup. Alot of Hazes. Technically, Hawaiian Snow has the highest THC content of their strains. Measured at 23.7%, which is VERY high, and I wouldn't believe it unless they weren't so reputable, and don't claim that all are that high (some just 15% or less). If you like Sativas, greenhouse has alot of good choices. A couple good Indicas also (White Widow, some of thier new seed lineup are Indicas also) you would probably have to smoke 'em all to figure out which one you liked best, a tough task anywhere but Amsterdam.
The lemon skunk, I think, is in the new line-up for this year. I don't know anyone who has grown it yet. Also I believe you can get the White Widow feminized. I've been wrong before though. Good luck, Most of their seeds will probably get you really stoned, if that helps any, lol.