Had a cold snap that the psychotria didn't like and they are dropping leaves like crazy. This has happened before a couple years ago and they came back to life in the spring. I am hoping they don't all defoliate as before. I moved the largest to a warmer room. Fingers crossed. At any rate I have lots of new leaves for propagating.

Yeah they'll be fine.

I never tried propagating cold-shock dropped leaves but if brewed or put in the freezer right away a friend found that the experience can be more sparkly than usual. Possibly due to cold stress stimulating alk production. Only tried it that one time, so it may not be a reliable phenomenon, but who knows?