Bristle-leaved red top is a tropical African grass that transforms gardens with showy ruby-pink flower panicles that fade gracefully to white as summer progresses. Growing 18-24 inches tall with narrow blue-green foliage that turns purple-red in fall, this ornamental grass thrives in full sun across hardiness zones 9-10, or as an annual in cooler climates. Its silky-haired flower spikes and tufting habit create movement and color from July through August, while its tolerance for urban conditions and black walnut proximity makes it a reliable choice for challenging garden spots.
Full Sun
Moderate
9-10
24in H x 18in W
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Moderate
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The flower panicles are the real draw here, covered in silky hairs that catch light beautifully as they transition from deep ruby pink to soft white. Foliage shifts to purple-red tones as temperatures cool in fall, extending the visual interest well beyond the peak bloom season. This grass handles urban pollution and the allelopathic effects of black walnut trees without complaint, thriving in full sun with moderate water once established.
Bristle-leaved red top is primarily grown as an ornamental grass for its dramatic summer flowers and foliage color. The showy pink panicles add texture and movement to garden borders, containers, and mixed planting schemes. In zones 8-9, gardeners often grow it as a summer annual, while in zones 9-10 it can persist through winter outdoors.
No timeline data available yet for this variety.
Start seed indoors 6-8 weeks before your last frost date to achieve earlier blooms.
Transplant seedlings outdoors after the last frost date once danger of frost has completely passed.
Sow seed directly in the garden after the last frost date in full sun.
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“Native to Africa, Melinis nerviglumis has been grown as an ornamental grass in temperate regions where it cannot overwinter outdoors. Its genus name comes from the Greek word meline, meaning millet, reflecting its relationship to grain grasses. The common names, ruby grass, pink bubble grass, and bristle-leaved red top, all reference the distinctive silky panicles that define its appearance.”