Maybe you can with more dried flower. If it is like the one in the vase, i think you can. If you observe well the flowers they have some tiny red dots. This is what we want from this plant. And this is the reason the oil becomes red. I think you should try. If the oil becomes red, then it is a success 👍. You could use a small vase to gain the knowledge for next year... And of course it is absolutely normal to try various things. That's what we do in general, right?