haworthiopsis limifolia var striata propagation

hi all! have had a Haworthiopsis limifolia var striata for probably at least 5 years now, and this summer it just completely fell apart at the base. i believe it had root rot, and am devastated as it was my first plant ever. i managed to save a singular leaf that had fallen off earlier.

all this to say, what are my chances of propagating/how would i go about doing so? the base of the leaf has "scabbed over", so I've just stuck it in some fresh soil today and hoped for the best. i've had success with other plants but not this one, so wanted to reach out to see if i should do anything differently!