Q.Why Would Licorice Plant Bloom In A Container In Very Cool Weather?
The weather in Idaho has been very cool with a few hot days sprinkled in. 65/40 and one 91 degree day. My licorice plant is blooming and no one here in Idaho can tell me why.
Certified GKH Gardening Expert
They bloom in June and August, naturally. It may have to do with photoperiodism. I could not find much reference to the subject, however, in some studies it was noted that vegetative growth was more vigorous during shorter daylight periods. Flowering was best achieved with a longer daylight period.
https://www.gardeningknowhow.com/edible/herbs/licorice/growing-licorice-plants.htm