Muhlenbergia capillaris ‘Ruby’
Overview
Uses: Mass plantings, ornamental borders, prairie gardens, naturalized beds, meadow accents, low-maintenance landscapes, and pollinator gardens.
Benefits: ‘Ruby’ Muhly Grass is a warm-season ornamental grass prized for its airy, ruby-pink plumes that float above a soft, clumping mound of fine green foliage in late summer and fall. Its texture and seasonal color make it a standout addition that contrasts beautifully with perennials and structural evergreens.
USDA Hardiness Zones: 6–10
Life Cycle: Warm-Season Perennial Grass
Sun: Full Sun to Partial Shade
Mature Height: 2.5' – 3' (approx. 30–36")
Mature Width: 2' – 3'
Bloom Season: Late Summer to Fall
Growth Rate: Moderate
Summary
‘Ruby’ Muhly Grass brings ethereal late-season color and delicate texture to landscapes.
This clump-forming ornamental grass emerges in warm seasons with fine, green foliage that serves as an elegant foundation throughout spring and summer. As temperatures begin to cool, the plant produces a showy display of ruby-hued plumes that rise above the foliage and create an airy, cloud-like effect—a dramatic accent in borders, meadow plantings, or massed groupings.
‘Ruby’ is a Benary-bred selection, developed by one of the world’s leading ornamental plant breeders known for rigorous trials, uniform growth, and garden performance. Benary varieties are selected for consistency, vigor, and reliable seasonal impact—qualities that translate to stronger plants, better color, and dependable results in home landscapes.
Low-maintenance and adaptable, ‘Ruby’ fits both naturalistic and formal garden designs while providing seasonal movement, wildlife interest, and striking autumn color. Its graceful form and long-lasting plumes add dimension long after other plants have faded.
Care
Muhly Grass ‘Ruby’ Care
Plant in a location that receives full sun for the best floral display, though it can tolerate light shade. Muhly grass prefers well-drained soil and performs best in sites that avoid excess moisture.
Water regularly for the first season after planting to establish a deep, healthy root system. Once established, ‘Ruby’ is drought-tolerant and rarely requires supplemental irrigation except during extended dry spells.
This grass thrives with minimal feeding; a light application of balanced fertilizer in early spring will support seasonal growth. Avoid heavy fertilization, which can reduce plume production.
In late winter or early spring before new growth begins, cut back old foliage to about 3–4 inches above ground to encourage fresh, vigorous shoots.
Size
What Size Is Muhly Grass ‘Ruby’ for Sale Online?
Our Muhlenbergia capillaris ‘Ruby’ ships in a greenhouse-grade grow pot sized for its stage of growth. For current pot sizes and availability, please contact us.
How Large Does Muhly Grass ‘Ruby’ Grow?
At maturity, ‘Ruby’ typically reaches about 2.5' – 3' tall with an equal spread. In late summer to fall, airy inflorescences extend above the foliage, enhancing its visual impact.
Additional Information
Is Muhly Grass ‘Ruby’ Deer Resistant?
Yes. The fine foliage and structure are generally not favored by deer, making it a good choice for landscapes in deer-prone areas.
What Are the Common Names of Muhly Grass ‘Ruby’?
This plant is commonly referred to as Ruby Muhly Grass, Ruby Pink Muhly, or Pink Muhly Grass, a cultivar of Muhlenbergia capillaris, a native North American ornamental grass.
Can Muhly Grass ‘Ruby’ Be Grown in Containers?
Yes. While typically used in landscape beds, ‘Ruby’ can be grown in large containers with well-drained soil and adequate sun exposure.
Does Muhly Grass ‘Ruby’ Need Winter Protection?
In Zones 6–10, ‘Ruby’ generally overwinters without protection. In colder climates, mulch around the root zone for winter insulation.
How Fast Does Muhly Grass ‘Ruby’ Grow?
‘Ruby’ has a moderate growth rate, establishing quickly in the first season and reaching mature size in subsequent seasons with consistent sun and good drainage.
How Should Muhly Grass ‘Ruby’ Be Spaced?
Space plants approximately 2' – 3' apart to allow for mature width and proper airflow, particularly when massed for meadow or drift plantings.
Does Muhly Grass ‘Ruby’ Attract Wildlife?
Yes. The airy plumes attract beneficial insects and provide seeds that may be used by birds, adding ecological value to ornamental plantings.
