One Unknown Plant , Some New Blooms and A Feast for Tomato Hornworms

Need some help to identify one self seedling from my garden.

The seedling appeared near to my Brazilian Red Hots (Alternanthera), so I assumed it was Brazilian Red Hots. Once the seedling got a little bigger, I transplanted it, and waited for its vibrant variegated foliage with purplish centers and fuchsia edges to show up. Now the plant seems already grew to a mature size, but that expected color is still not shown.

Can somebody identify it for me (above, located at the left side of the oyster plant)? Or it is just a weed that I have been nurturing from the beginning? I did not see any flower buds so far, so not sure if it is a flower plant or just foliage.  I don't see any other plants in my garden that looks like this one.

Meanwhile, there are some new flowers blooming in the garden.

Very first a couple of blue butterfly flowers on this very young plant!  Love its unique shape and beautiful blue color! 

Clerodendrum ugandense (Blue Butterfly Bush)

 I really loved beautiful Cleome flowers planted in mass in Chengdu Panda Research Base in China.  After I came back, I happened to see this Proven Winners Senorita rosalita Cleome Hybrid for sale in the big box store, just could not resist bringing one home. 

Proven Winners Senorita rosalita Cleome Hybrid  (Spider Flower)

It was said this type will not self seed, and is not sticky and doesn’t have thorns, but the flowers are smaller than classic cleome.  Although I think I still prefer the bigger flowers :)

Three different colors of Torenias were bought for my new partial shade garden.  I know they are annuals, but will enjoy them as much as I can, and hope they will seed themselves for next year too!

Oh, I have to show you what happened to my Datura metel (Devil's trumpet).  It was blooming very well with half dozen of buds waiting to open as well.  It looked great in my new flowerbed.

Until tomato hornworms found it...  I actually found there were 13 of them on this plant!!!   This time, I decided to leave them alone to expect they will become beautiful moths someday...

In just two days, my bush looked like this, no single leaf was spared!  What a feast they had!

My question is after they finished the leaves, where did they go?  I can not find any cocoons anywhere nearby.  The nature is a real amazing thing!

Source: http://sefloridagardenevolvement.blogspot.com/2010/08/one-unknown-plant-some-new-blooms-and.html