Dear David, I'll add my experience to the response you already got. Scilla peruviana (Kew is still listing it as this) has only a brief dormancy and in a well watered summer garden even shorter. My plants usually dry off since I water very little in summer, but if I remember correctly when I lived in Stockton and had clay soil and watered the ground covers a bit more often my plants stayed green much longer. I noticed this weekend that where I live a bit north of you some of my plants have formed scapes. They often skip a year or two in blooming and I was checking to see if they were going to bloom this year. I don't know a source for a key, but there are pictures on the wiki of it and Scilla hughii which is similar. Do any of the Italian members of our list have a key? Mary Sue