Hydrangea arborescens, commonly known as Smooth Hydrangea or Wild Hydrangea, is a deciduous shrub highly valued for its showy and voluminous flower clusters. Native to eastern North America, this lovely shrub is a popular choice in gardens and landscapes for its beautiful blooms and adaptability to various growing conditions. Here's a description of Hydrangea arborescens:
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Flowers: The most notable feature of Hydrangea arborescens is its stunning flower clusters, known as corymbs. The flowers are generally large and dome-shaped, composed of numerous small, fertile flowers surrounded by larger, sterile flowers. The color of the blooms can vary depending on the cultivar and soil pH, ranging from pure white to pale green.
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Foliage: The shrub's leaves are broadly ovate with a serrated edge and are typically medium to dark green in color. The foliage forms a lush and attractive backdrop to the abundant blooms, enhancing the overall appeal of the plant.
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Blooming Season: Hydrangea arborescens typically blooms from late spring to early summer, producing its magnificent flower clusters during this period. The flowers can persist for several weeks, adding a burst of color and charm to the landscape.
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Growth Habit: Smooth Hydrangea is a medium-sized deciduous shrub that can reach a height of 3 to 5 feet (0.9 to 1.5 meters) and has a similar spread. It has a rounded and mounding growth habit, creating a pleasing and well-balanced silhouette.
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Care Requirements: Hydrangea arborescens is relatively easy to care for and is adaptable to different soil types and growing conditions. It thrives in partial shade to full sun, with morning sun and afternoon shade being ideal for best flowering. Regular watering is necessary, especially during dry spells, to keep the soil consistently moist. Pruning should be done after the blooming season to encourage new growth and enhance the shape of the plant.
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Pruning Tip: Unlike some other hydrangea varieties, Hydrangea arborescens blooms on new wood, which means it can be pruned in late winter or early spring without sacrificing the flowering display for the current season.
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Landscape Use: Smooth Hydrangea is often used as a specimen plant, in mass plantings, or as part of mixed shrub borders. Its lovely blooms and lush foliage make it a favored choice for bringing color and texture to gardens and landscapes.