I mean, let's be real, it's green. In Commander, the tough thing will not be to cast this, but to cast (and keep) something with significant toughness on the board at that point. Magical Christmas Land hands could cast this turn two if they wanted to.
I think for (mono) green, the bigger issue will be to stack enough high-impact creatures (i.e. Craterhoof) near the top of your library.
That said, I'll probably run this in my Omnath deck (Locus of Mana, but the others can use this just fine), just for another payoff for mana hoarding.
Definitely curious what people will build with this.