Called "Star of Bethlehem" by florists, this is an amazing fall bulb with a long lasting star-shaped bloom. Stem length averages between 20-28". Hardiness zone 8-11 to perennialize. These are treated as an annual here on our farm, with the bulbs being planted in October and blooms in May. They require being grown in a heated greenhouse space in our zone 6a. Ornithogalum bulbs will be shipped starting in October for fall planting. If planting in standard bulb crates (16"x24"), we suggest 25 bulbs per crate.