My Acanthus Mollis No Flower Stalk. Why?

Question

I’ve planted acanthus mollis and it seems to be growing bigger each year, but has yet to produce a flower stalk. Is there something more I can do to promote flowering?

Answer 1

Here are its best growing conditions. Compare them with yours and see if something is missing:

https://www.gardeningknowhow.com/ornamental/foliage/bears-breeches/grow-bears-breeches-plant.htm