In the G/W casual enchantress decks I have played -- both with and against, Auratogs are there -- to provide both a target for Rancor, and a method to sac Rancor.
If you stay G/W consider Femeref Enchantress -- draw a card whenever an enchantment goes into ANY graveyard from play.
Arenson's Aura (and the new Invasion version, name forgotten) works well, even without blue in the deck, especially with recurring enchantments.
As for the original deck posted, why are the Vernal Blooms there? They will make mana for what? Your most expensive card has a 4cc, and with no X spells, there really is no point for the Vernal Blooms. And while Mirri's Guile is nice, 4 in one deck is far too many.
Ideally, each card in your deck is fully utilized.
Gizmo's comment about Exploration is a valid one, but should you not be able to get any Explorations, consider Gaea's Touch from the Dark. As you are playing monogreen, it should not present too much of a problem -- besides, you can always sac it for GG.
Other cards to consider, aside from the oft-mentioned Endless Wurm, are the Thran Golem, Blanchwood Armor, and Enlightened Tutor.
Lastly, as you did not specify what type of play this deck is for, I am presuming you have built this deck along the casual guidelines this site supports.