I run a list very close to Spatula's:

-2 Green Sun's Zenith
+1 Sterling Grove
+1 Ground Seal

I'll give it a whirl with the full set of Zenith's, but I really like the Draw and Tutor power of the extra Grove and Seal.

The biggest complaint I have with the bulk of the lists being presented is the reliance on white when your acceleration and enchantresses are all green. The heavy reliance on white silver bullets puts the deck in the awkward position of being a mediocre control deck with a combo finish.