Caterpillars: 6 weeks to - 12 months 

  
Butterflies: Approximately 12-18 months

Ladybugs: Approximately 18-24 months 

Frogs: 2 year old, as of September 1

 
Dragonflies: 3 year old, as of September 1

Hummingbirds (Pre-K): 4 year old, as of September 1