Hi EthansAdaptation, I have some extra staking tips for you that i hope you will find useful. The photo below may help with the positioning of the clips. A thin stake with soft wire or plastic clips is suitable but make sure the clips or wire are not too tight on the stem.
Ensure the stem is secured in between node positions (and not at the nodes themselves).
I would also ensure the flowering top of the stem be allowed to arch slightly as shown in this next photo. The flower heads will then be in a more natural position.
I hope this helps!