My truncata grew verrrrrrry slowly when I first got it...it stayed small for a long time with 2" pitchers. Then all of sudden it started growing much faster. I wouldn't say FAST exactly but definitely a faster rate. It started throwing large pitchers pretty quickly...it went from pitchers of a few inches to a 7". It has a 9" pitcher now. But it is getting cramped...a situation I must solve soon.