Mushrooms are a wonderful thing
Level 3
Devouring Growth.
Whenever a Spored creature dies, Cultivate Flora for free.
Spores.
When you deal damage with Savage Bloom, the target(s) gain Spored. While Spored, you always know its location, even if hidden or invisible.
Level 7
Fungal Bloom.
When you cast a Greenspeaker spell, it may also manifest from a second, unoccupied space within Reach 6. The second manifestation deals half damage.
A creature can only be affected by one of your spells at a time.
Level 11
Fibrous Network.
Fungal Bloom's second manifestation may instead originate from any Spored creature within Reach 12. If it does, it deals full damage instead of half.
Level 15
The Network Awakens.
(1/Safe Rest) When you cast a Greenspeaker spell, it also manifests from the space of every Spored creature within Reach 12, at full damage.