How to pass the Herbology test in Harry Potter and the Order of the Phoenix?

I'm having some trouble with the Herbology test in the Harry Potter and the Order of the Phoenix game for Wii. (The minigame where you have to repot the Mandrakes) I've moved them all to the new pots in rounds 1, 2, and 3 without trouble, but when Professor Sprout calls for the end, I find out I failed. Is there some trick to this that I'm not getting, or am I just not performing fast enough? Does it matter which pot you put the Mandrake in? If you've finished this, please let me know!

My friend have played that game. I will contact him for u. Just tell me ur email