This is not the garland chrysanthemum or edible chrysanthemum used in Chinese cooking it is the Chinese medicinal plant. It is easy to grow and grows to a nice bushy plant in just one summer. I was hunting for that plant for a while and can finally offer it! In Katoomba it flowered quite late and the bees were all over the plant, so I actually never harvested the flowers, we love our bees after all!
Plant it with something stiff in front to hold the chrysanthemum upright, it’s a floppy plant.