Oriental Fountain Grass 'Karley Rose' is a warm-season ornamental grass native to Asia that brings movement and elegance to any garden. This hardy cultivar grows 24 to 36 inches tall and wide, forming graceful clumps of narrow, gray-green foliage crowned with showy, pinkish-white flower spikes that arch upward like water spraying from a fountain. Blooming from June through August, it thrives in hardiness zones 5 through 8 and tolerates drought, urban conditions, and even black walnut trees, making it a resilient choice for challenging sites. The 'Karley Rose' selection is winter hardy to zone 5a, an improvement over the species, giving northern gardeners access to this elegant grass.
Partial Sun
Moderate
5-8
36in H x 36in W
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High
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The flower spikes are the real show here, rising well above the foliage to 2.5 to 3 feet tall and persisting long into late summer with a fluffy, pinkish-white appearance that catches light beautifully. Established plants handle drought with ease once settled in the garden, and the cultivar's proven hardiness to zone 5a makes it far more reliable in cold climates than the standard species. This grass asks for very little once established, requiring only a simple cutting back to the ground in late winter and preferring full sun, though it tolerates partial shade if needed.
Oriental Fountain Grass works as an ornamental focal point in garden beds and borders, where its arching form and pinkish-white summer blooms create movement and visual interest. The persistent flower spikes extend the garden's season of appeal well into late summer. It thrives in containers and performs reliably in urban landscapes, making it practical for balconies, patios, and city gardens where space and growing conditions are constrained.
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Cut the foliage to the ground in late winter before new shoots emerge. This annual pruning removes the previous season's dead growth and allows fresh foliage to rise cleanly from the base of the plant.
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“Pennisetum orientale hails from Asia, where it grows naturally in warm climates. The 'Karley Rose' cultivar represents a deliberate selection effort to extend the range of this graceful grass northward. While the species itself is reliably hardy only to zone 6, this improved selection was reportedly bred to withstand zone 5a winters, opening the plant to gardeners across a much wider swath of North America. This breeding work reflects a broader horticultural push to make ornamental grasses accessible to colder regions without sacrificing the plant's elegant character.”