I understand from guildies that in order to get the 9th tick of Wild Growth I need 2005 haste. however having just got some new gear I decided to give it a shot. I am currently at 2016. But only getting 8ticks.
ahh... ok thanks guys... all makes sense now :-) Also explains why http://www.askmrrobot.com lists a different haste percentage that doesn't correspond with the shown haste rating.