Flower

Thanks. My 6 year old is entering all the spottings, and he wants to do it all on his own.

Hi MyThanhGray. This looks like a petunia seedling to me. Check out this link & see what you think http://en.wikipedia.org/wiki/Petunia. If you agree, please change the common & scientific names to Petunia, as this is one of the few species where the names are the same.
There is no need to make ID suggestions for your own spottings, when you know the species you should go ahead & update the information. The scientific name will be a latin name - if you know the species you can easily find out the scientific name with a quick Google search.
If you make a species suggestion on another user's spotting, please ensure you include the correct scientific name & a reference link.