- Shipped dormant only from September 10, 2018 through November 27, 2018.- This is the orange version of this much sought-after North American native. Like most lilies, they like a good soil and not too dry in summer. Bulb size: While the regular sized bulbs are 5/8" to 1" in diameter and might bloom the first year, these xx-large ones are 1 1/2"+ in diameter and are capable of baring 7+ flowers the first season.