Hello All, I obtained the above this spring in the BX. (Thanks, Alberto.) I followed the instructions to plant, refrigerate, pay attention, remove from the fridge, and wait. Nothing sprouted. I put the pot in the shade outside and watered it regularly. I forgot about it but since it was near other things I watered it never dried out. I was moving things two nights ago in preparation for our first frost of the winter and noticed a lot of stringy weeds growing in a pot. The leaf shape looked vaguely familiar... something like the canary creeper. Then I knew what it had to be. Yes, T. pentaphyllum had sprouted. So, if you follow directions and nothing happens, try not following directions. I suspect the seeds were waiting for the proper ambient temperature rather than looking at the calendar.