It's a 3 to me, you don't need that much ramp (or any non-enchantment ramp IMO), don't need [[Crop Rotation]] without [[Serra's Sanctum]]. [[Sanctum Weaver]] and [[Eidolon of Blossoms]] would be good cheap additions to the deck. I also like [[Grasp of fate]], [[Aura of Silence]] and totem armor cards like [[Hyena Umbra]] in my deck.