Celtis occidentalis, commonly known as the common hackberry, is a deciduous tree native to North America. It is part of the Cannabaceae family and the Celtis genus. This tree is known for its distinctive warty bark and small, dark purple fruits. It thrives in temperate climates and can grow up to 40-60 feet tall. The tree has a dormancy period during the winter months.
Celtis occidentalis prefers full sun and moderate temperatures. It is relatively drought-tolerant once established but benefits from occasional watering during prolonged dry periods. The tree thrives in moderate humidity and can tolerate a range of soil conditions, although it prefers well-drained soil.
Soil
The common hackberry prefers loamy soil that is well-drained. It can tolerate a range of soil types, including clay and sandy soils, but performs best in nutrient-rich, moderately moist conditions. Good drainage is essential to prevent root rot.
Fertilizer
Fertilize Celtis occidentalis with a balanced 10-10-10 fertilizer in early spring. This will provide the necessary nutrients for healthy growth. Fertilization can be done annually or biannually, depending on soil fertility.
Repotting
As a tree, Celtis occidentalis is not typically repotted. Instead, ensure it is planted in a suitable location with enough space for its root system to expand. Transplanting should be done in early spring or fall when the tree is dormant.
Propagation
Celtis occidentalis can be propagated through seeds or cuttings. Seeds should be collected in the fall and stratified over winter before planting in the spring. Cuttings can be taken in late spring or early summer and rooted in a well-draining soil mix.
Pruning
Pruning is necessary to maintain the shape and health of Celtis occidentalis. Prune in late winter or early spring before new growth begins. Remove any dead, diseased, or crossing branches to improve air circulation and light penetration.
Toxicity
Celtis occidentalis is not toxic to pets or humans. All parts of the tree, including the leaves and fruits, are considered safe.
Additional
Celtis occidentalis is a hardy tree that can withstand urban pollution and is often used in city landscaping. It provides excellent shade and is a valuable food source for birds and other wildlife.
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