You are right smartie--I can't afford those expensive ones.Some of the neos are way up there in price saw one for 180 US & only a couple of growths!At least if you have trouble in growing them you haven't lost a great deal of money. Lin I'll have to go out & measure so give me a couple of minutes.LOL Okay ,the newest growths are 7" so I'm sure it will not get over 8" if that as I've had it since 2001