Take up your branch!
Level 3
Ironwood Strikes.
You may use Savage Bloom on Staff attacks. When you do, double the attacks STR bonus.
Level 7
Blunt-Force Growth.
Whenever you hit with a Staff attack, you may grow one of your Seed Dice one size.
Level 11
Sweeping Bough.
When you use Savage Bloom on a Staff attack, you may deal the Savage Bloom bonus damage to another enemy adjacent to your target.
Level 15
Timber! .
(1/turn) When you attack with a Staff, you may change the damage die to be 1d20.