Wow that thing is huge! I bet the resulting moth is pretty large too. Once when I was living in the city I grew milkweed in the tiny lawn out back. It took a year or more but I managed to get Monarchs in the neighborhood.
The neighbors thought I was crazy for growing weeds but I enjoyed the butterflies.
I am glad you were featured in the #payitforward this week. I saw some of your other posts look interesting. Gone to investigate.