I have been getting a lot of calls about pruning back dead/frost killed folage, mostly bananas and cannas.
I cut bananas back at about waste level. Doing this forces the plant to come back a taller than cutting it off at ground level, which is the suggested pruning method if you are trying to produce bananas. Our growing season is generally too short for a banana to produce fruit. By leaving a "trunk" the leaves are pushed up higher producing a taller plant faster. A&M suggests using the prunings as mulch. Makes sense.
I cut cannas back to ground level. This is a messy, mushy job, but it really needs to be done to keep things neat and clean and to avoid diseases.
Garden Bloggers Bloom Day - December 2017
19 hours ago