Green shoots

Exactly one month ago I planted some mystery bulbs (or where they tubers, or corms?) that I had found in the ground whilst digging in the borders. I had no idea what they were (we'd only just moved into the house) so I put them in a pot and waited to see what happened. Well the first evidence of life has sprouted, so it looks like I might find out what they are. At the moment there's just a single robust looking green shoot about 2cm tall. I put a lot of bulbs in the pot so hopefully more will follow, and with any luck they'll reveal themselves for what they really are. Stand by for updates in future weeks!