I don't think it actually grows because I have one and It is simply just a statue... but it depends on what expansion pack you are using... I only have sims 3 pets. There is a difference.
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You can grow plasma fruit with the Sims 3 Late Night expansion, but only when your Sim has reached a Gardening skill level of 7.
Sims 2 double deluxe? yes sims 2 children grow up.
It takes about a week (in sim time)
You can only birth/ adopt One kid in the sims 3 ambitions for iPhone/iPod/iPad. Note; they will only grow up to be a Toddler.
Lots are out. The sims 3 university, sims 3 nightlife, sims 3 adventures, sims 3 generations... you name it!