Finally, my hydrangeas bloomed. I cut a group of stalks, put them in the pitcher and WOW - they were too short. My pitcher is very tall. This is probably why it was in the yard sale.
I will make this work. I will not let Martha down. I set an empty plastic tub down into the pitcher and stacked a mason jar on the container. The hydrangeas will sit in the jar and appear to be taller. I'm a genius. More likely, I must have seen something like this before, but since my memory is so bad, I think it's totally my idea.
Now that's much better. Well... a little better. I couldn't make my arrangement look quite like my vision. No problem. Martha's set decorator will take care of that.