This excites me!
I plantdyed these skeins with St. John's wort (dessolved in alcohol).
After a bit of research online I omitted mordanting.
Green or red-ish? I wanted red and for a long time the first batch (left) really looked a bit red even when it started to dry.
What was left of the dyebath was green and I put in two small skein to use the bath once more. Those turned green (middle) instantly.
I was disapointed to see that also the first skeins turned greener and greener as it dried and it ended up medium olive green with a strange undertone of red.
Well, I really wanted that red so I cooked what was left from the used flowers once more and added bakning soda. Voilà! Red or at least red-ish. I'm so happy with the color to the right.
These type of experiments are the greatest adventures to me❤️. By the way, I always dye on both natural white ang natural light grey yarn at the same time.