Panicum virgatum Rubrum (Red Switchgrass)
Panicum virgatum Rubrum (Red Switchgrass)
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Panicum virgatum Rubrum (Red Switchgrass) is a striking ornamental grass with upright, slender stems that take on a rich red hue in the late summer and autumn. This variety of switchgrass is known for its unique colouration, which deepens as the season progresses, creating a dramatic display in the garden. The feathery flower panicles bloom in late summer, adding a delicate, airy texture to the plant’s overall form.
With its ability to thrive in a variety of conditions, Panicum virgatum Rubrum is an ideal choice for low-maintenance, drought-tolerant gardens. It works wonderfully in borders, meadow-style plantings, and naturalized areas, providing seasonal interest with its beautiful colour changes and graceful appearance. The plant’s striking red foliage in autumn makes it a perfect addition for year-round garden appeal.

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Mature height
1.2–1.5 metres
Mature width
0.6–1 metre
Spacing
1–1.5 metres
Evergreen/Deciduous
Deciduous
Foliage
Red foliage turning to deeper red tones in autumn with feathery flower panicles
Flowering Period & Fruit Development/Harvest
Late summer to autumn [January–April]
Sun tolerance
Full sun to partial shade
Maintenance
Low maintenance. Prune back in late winter for new growth in spring. Water during dry periods, ensuring the plant is not waterlogged.
Root System
Deep, fibrous, and clump-forming root system