Cabbage White butterflies can go through three to five generations every year, which is why they are so common.
White Butterfly on Lavender - Greensboro Daily Photo
Butterflies Part 2: Whites, Blues and a day flying moths
Southern Small White Butterfly Conservation
Small White Butterfly (Pieris rapae)
A great year to be a cabbage white butterfly: why are there so
How to Get Rid of Cabbage Moth & Cabbage Butterfly
Mighty Whites – Butterfly Conservation Ireland
Backyard Biodiversity: Butterflies
Which White? - A Photographic Identification Guide to White