How to Prune common turmeric?
remove old, yellowed stems as necessary

common turmeric · Curcuma longa
Also known as: turmeric
Grow in a well-drained but moisture retentive soil, rich in organic matter and in indirect, bright light and in a warm conservatory, greenhouse or window indoors, in temperatures no lower than 18°C (65°F)
remove old, yellowed stems as necessary