I planted the two passionflower vines finally. I don't have the trellis built yet, but I know what I want to do. The caterpillar disappeared.
I'm still working on that online landscape design class through our local library. This is what I wrote for one of our assignments which included drawing up a plan:
"Before I bought the house, I'd had the full acre surveyed. I used this professional survey as the background for tracing paper. Using this method, I mapped out all the existing trees. I had several "free" Arbor Day trees I wanted to put in, so I read up on how large they are expected to get. I evaluated the available spaces, keeping in mind areas we wanted open for company to be able to park and just open yard space to enjoy. I was able to find a few areas to plant my trees. I thought about the colors the trees would offer and what times of the year those might change. This allowed me to plan where to plant a witchazel, a cherry, a redbud, and a crabapple. I also found spots for lavender to spread. I thought about what kind of trellising to use for my passionflower vine and put in on the plan. The trellis is pretty much longer than it is wide, sort of a short, shallow fence that parallels the driveway.Before I started planting trees, I also called the 811 number our state has for finding the utility lines and was able to include those in the plan so I could avoid planting trees on or too near them. It's been an interesting but fun experience."
Technically, David helped me quite a bit with this. And the 811 number did NOT help me much but I figured out where the utility lines were anyway (the sunken earth lines gave it away).