The total length of your petunia season depends heavily on your local weather and hardiness zone:
While the potential is 5+ months, several factors determine if a plant actually reaches that duration. how long do petunias bloom
Petunias are "heavy feeders." Because they bloom continuously for months, they deplete soil nutrients quickly. The total length of your petunia season depends
Petunias are known for their long blooming season. Here’s a quick breakdown: how long do petunias bloom