Of my four Ginko biloba, two leafed out again last year (their second year), and I thought two had died. I don't know why I kept the sticks, but I put them in a "junk" pot. Easter Sunday we noticed green buds on top of the sticks. The ones that leafed out two years in a row are still dormant, looking like they're going to be sticks. Is this normal Ginko behaviour? Skipping a year? Thanks Carl