Mat Rush is an evergreen Australian native that brings architectural grace to sun-drenched gardens across zones 8 through 11. Despite its grass-like appearance, this tufted perennial belongs to the asparagaceae family and reaches a mature size of 12 to 24 inches tall with a spread of 24 to 36 inches. Its arching, narrow foliage and low maintenance needs make it a resilient choice for gardeners working with poor or rocky soils, while the 'Seascape' cultivar offers improved resistance to root rot, a common threat in poorly drained conditions.
Partial Sun
Moderate
8-11
24in H x 36in W
—
Low
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Lomandra confertifolia subsp. rubiginosa 'Seascape' carries the rugged character of its native Australian forest and rocky slope habitats into the garden with minimal fuss. The stout, upright stems support fine, linear foliage that sways with an almost graceful, grass-like rhythm, yet this is no true grass; it's a hard-working perennial that thrives in sandy loams and tolerates poor, rocky soil where many ornamentals struggle. The 'Seascape' selection specifically addresses one of the species' main vulnerabilities by providing enhanced root rot resistance, making it far more reliable in gardens where drainage can be inconsistent.
Mat Rush serves as an ornamental foliage plant, valued for its structural form and texture in landscape design. Its low-growing, spreading habit and tolerance for poor soils make it suited to rock gardens, mixed borders, and areas where other perennials falter.
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“Lomandra confertifolia is native to forests and rocky slopes of eastern Australia, where it has evolved alongside the region's challenging growing conditions for millennia. The 'Seascape' cultivar represents a selection bred or chosen specifically to overcome the species' susceptibility to root and crown rot in cultivation, a problem that emerges when plants encounter the heavy, poorly drained clay soils common in many gardens far from their Australian home.”