Flax Lily is a sedge-like perennial native to Tasmania and southeastern Australia that brings architectural elegance to shaded gardens. Its narrow, strap-like leaves grow up to 3 feet long, creating a fountain-like form that reaches 18 to 24 inches tall and spreads 24 to 36 inches wide. From February through April, delicate panicles of small bluish flowers with prominent yellow stamens rise above the foliage, followed by showy fruit that persists into the season. Extremely low-maintenance and drought-tolerant once established, it thrives in Zones 9 through 11 and handles partial shade beautifully, making it an evergreen asset in warmer climates.
Partial Shade
Moderate
9-11
24in H x 36in W
—
Moderate
Hover over chart points for details
This Australian native spreads slowly by creeping rhizomes to fill a 3-foot area, creating a layered, textured groundcover that looks refined without demanding constant attention. The contrast between its fine, strap-like foliage and the delicate bluish flowers with golden centers creates visual interest that persists for months, and the ornamental fruit that follows extends its seasonal appeal well beyond bloom time. Deer won't eat it, drought won't kill it, and once it settles into medium to dry, well-draining soil in partial shade, you can largely leave it alone.
Flax Lily functions as a low-maintenance groundcover that spreads steadily across shaded areas, creating textural layers without aggressive spread. Its combination of fine foliage, delicate flowers, and persistent ornamental fruit makes it well-suited to woodland edges, shade gardens, and areas where you want visual interest without the burden of high maintenance.
No timeline data available yet for this variety.
Divide established clumps by clump division and transplant into partial shade with well-draining soil. Space plants to allow for their mature spread of 24 to 36 inches.
Enter your ZIP code to see a personalized growing calendar for this plant.
“Dianella tasmanica is native to Tasmania and southeastern Australia, where it evolved in their native ecosystems as a rhizomatous perennial adapted to variable moisture and partial shade conditions. The plant entered cultivation as gardeners recognized its ornamental value and reliable hardiness, eventually making its way into the nursery trade across temperate and subtropical regions. The 'Variegata' selection represents a cultivated form selected for specific ornamental characteristics, though the catalog sources provided do not detail the specific origin or date of this selection.”