@Almond-Magnum And once they fully understand all of the implications of the thing Chelsea can make another one that CAN be reproduced. But that should probably wait for a full series of studies on the impact of the elixir and the plant itself on society and the environment, which can happen later. For now she needs to make sure the blueprint has a self-destruct built into the seed because she'll only be using them as one-offs she makes on-demand, and if someone else gets their hands on one they likely won't put that sort of thought into it before trying to reproduce it.
"Any seed she can wish for" remains true even if she limits them. She can just wish for one that isn't limited next time.