4th

PFS StandardEnlarge  [two-actions] Spell 2

Concentrate Manipulate Polymorph 
Source Player Core pg. 329
Range 30 feet; Targets 1 willing creature
Duration 5 minutes
Bolstered by magical power, the target grows to size Large. Its equipment grows with it but returns to natural size if removed. The creature is clumsy 1. Its reach increases by 5 feet (or by 10 feet if it started out Tiny), and it gains a +2 status bonus to damage rolls on melee Strikes. This spell has no effect on a Large or larger creature.
Heightened (4th) The creature instead grows to size Huge. The status bonus to melee damage is +4 and the creature's reach increases by 10 feet (or 15 feet if the creature started out Tiny). The spell has no effect on a Huge or larger creature.
Heightened (6th) Choose either the 2nd-rank or 4th-rank version of this spell and apply its effects to up to 10 willing creatures.

Constants

PFS StandardSpeak with Plants  [two-actions] Spell 3

Concentrate Manipulate Plant Wood 
Source Player Core pg. 358
Duration 1 hour
You can ask questions of and receive answers from plants and fungi, but the spell doesn't make them more friendly or intelligent than normal. Most normal plants and fungi have a distinctive view of the world around them, so they don't recognize details about creatures or know anything about the world beyond their immediate vicinity. Cunning plant or fungus monsters are likely to be terse and evasive, while less intelligent ones often make inane comments.
Heightened (4th) The duration is 8 hours.