My grow bed of Prunus mume fruited heavily for the first time this year, so
I'm thinking about collecting the fruit and extracting the seeds.

How old are they? I had a seedling Prunus mume for years & it never bloomed. I
finally gave up & sold it.
Iris,
Central NY, Zone 5a, Sunset Zone 40
"If we see light at the end of the tunnel, It's the light of the oncoming
train."
Robert Lowell (1917-1977)