Seed will most likely not be viable any longer . It must be sown within a few weeks of picking . I sow on sphagnum moss .Seeds from a select cultivar like Anaconda will very seldom come to grow like parent plant , but will still be a nice flowering plant.

Seed viability in anthuria is truly shortlived. The only ones I have had success with were ones I took off of my plants myself in the berry stage, cleaned myself and planted immediately.