When you look up Cassia or Senna trying to figure out what plant you need for that beautiful yellow butterfly, it can get very confusing fast. There are lots of varieties, tons of common names, and very few straight answers.

I'm reasonably sure that this one is Cassia Bicapsularis. It's a fall / winter bloomer, and it's beautiful when it's all covered in yellow flowers. Unfortunately, although I was told it was when I bought it, it isn't a Florida native.

There are Orange Barred Sulphur Butterflies all over my Cassia bushes. Here are two butterfly eggs on the leaf tip:

When it blooms, the whole bush turns yellow; it's beautiful!

This Christmas Cassia (that's when it blooms) has more green running through it than most do in bloom - notice that light brown stem at the base on the right? It's a Corkystem Passionvine using the bush as a trellis, which gets me even more butterflies because the vine is a host plant too.

The bright yellow flowers don't seem to interest the butterflies, but this green bee explored them for a while.

One fun thing I've noticed while raising the sulphur caterpillars that nibble on this Cassia plant is that the more flowers the sulphur butterfly caterpillars eat, the more yellow they are.