Mono-Green Ramp with Garruk?

[Xaol]

So I just got the M13 Garruk today, and want to make a mono-green ramp deck. Any suggested cards? I'm not sure where to start, honestly- this is my first mono green deck!

[Thorn]

{Arbor Elf}
{Yeva, Natures Herald}
{Elderscale Wurm}
{Rampant Growth} (while it lasts)
{Primeval Titan} (while it lasts)
{

[Ghebert]

{Boundless Realms}
{Llanowar Elves}
{Bountifuk Harvest} sideboard
{Thragtusk}
{Roaring Primadox}

[Xaol]

{Boundless Realms}
{Llanowar Elves}
{Bountifuk Harvest} sideboard
{Thragtusk}
{Roaring Primadox}

Why Roaring Primadox? That card seems kind of silly to me.

[Willthomjr]

{llanowar elves}
{strangleroot Geist}
{rancor}
{Dungrove elder}
{primeval Titan}
are automatically included in mono green decks

[Ghebert]

{Boundless Realms}
{Llanowar Elves}
{Bountifuk Harvest} sideboard
{Thragtusk}
{Roaring Primadox}

Why Roaring Primadox? That card seems kind of silly to me.

Pair it with {Thragtusk} or anything else that has good ETB effects.
{Roaring Primadox}+{Thragtusk} got me first place last night in the draft.

And Roaring Primadox is a 4/4 for {3}{G} which is ok by me.

[BulgyCrimsom]

{Primordial Hydra} is a boss

[Willthomjr]

{Boundless Realms}
{Llanowar Elves}
{Bountifuk Harvest} sideboard
{Thragtusk}
{Roaring Primadox}

Why Roaring Primadox? That card seems kind of silly to me.

Pair it with {Thragtusk} or anything else that has good ETB effects.
{Roaring Primadox}+{Thragtusk} got me first place last night in the draft.

And Roaring Primadox is a 4/4 for {3}{G} which is ok by me.

It's not ok. Returning a creature to your hand is taking creature advantage away.
It's ok in limited but not constructed since you have a chance of bounce, kill spell, counter, etc. there are better things for less I'd have in mono green deck.