"...........Ok, I do tend to procrastinate a little, but near the Mekong in
1973 I gathered some seeds of a particularly beautifully foliaged bush. They
have been neglected in my shaving kit all these years. ........"

I did the same many years ago in Africa and found them over 20 years later,
sowed them all in the hopes that 1 might come through and the lot grew, but
lost them in an early frost...just wish I had kept some back.
I'd always say sow, and leave them for a year or so before dumping, after
all what is the space taken by a pot against the chance they'll grow.
Good luck.

--
David Hill
Abacus nurseries
www.abacus-nurseries.co.uk