crocosmia flower storage

Question

The article on the website states to keep the fresh-cut stems in 100 deg F for 48 hours – how do you keep water at 100 deg F?

Answer 1

You would use the warm water as you cut the flowers, then place in a dark location. Yes, the water temp will change.
This is a common technique used with cut flowers.

Also adding a floral preservative to the water will aid in cut flowers lasting.

https://www.gardeningknowhow.com/ornamental/flowers/fgen/how-to-keep-flowers-fresh-after-cutting.htm