If you place an order through 4-25 It will be shipped before we stop our shipping season on this item. All orders after April 25th will be held in fields and shipped in Late October when fall shipping starts. We ship year round Perennials, Moss, Fern, Grasses, Vines and Live Stakes.Buy Hazel Alder at Trees-Plants. The Hazel Alder can grow up to 30 feet in its mature height with a 30 foot width. This plant is found mainly along areas such as northern Florida and the Mississippi river. The shrub can grow anywhere from 3 feet or more in a single year. The light it requires is full to partial sunlight. The shrub must have moist or wet soil to grow properly. The zones in which the alnus serrulata-hazel alder thrives in are zones 3-8.