Perennial
Flax Lily
Dianella tasmanica
Monrovia® varieties
Varieties We Carry
StandardDianella tasmanicaFlax LilyDianella tasmanicaHypnotica YellowDianella tasmanica
Sizes & Pricing
1 galFrom$6.95
3 galFrom$14.95
Fresh this week. Last restocked Jun 19.
LightFull Sun, Part Shade
WaterModerate
Mature size1-3 feet × 2-3 feet (spreading clumps)
About Flax Lily
Flax lily (Dianella tasmanica) is an Australian perennial forming graceful, arching clumps of narrow, strap-like foliage in green or variegated forms. Small star-shaped blue flowers appear in spring, followed by attractive glossy purple berries on branching stems. A tough, low-maintenance accent plant used in borders, foundations, and mass plantings. Starting at $6.95.
Plant details
- Bloom Season
- Winter, Spring, Summer
- Flower Color
- Purple, Blue
- Growth Rate
- Moderate
- Foliage
- Evergreen
- Soil
- Sandy, Loam, Well-drained
Best planting months
Recommended forZone 9b · St. Augustine, FL
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Seasonal care
Bloom season. Good planting window.
Bloom season.
Ideal planting window.
Retains foliage through winter.
Care essentials
Light
Tolerates full sun to partial shade in NE Florida; too much shade can invite scale insect problems, so a site with at least 4–6 hours of direct sun is preferred for best vigor and berry production.
Water
Moderately drought tolerant once established; water regularly during the first growing season to encourage deep rooting. Supplement irrigation during extended dry spells; avoid prolonged wet or waterlogged conditions.
Soil & Fertilizer
Grows in most well-drained soils including NE Florida's sandy loams, with little regard to pH. Apply a balanced slow-release fertilizer in spring; established clumps require minimal feeding.
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Common questions
Is Flax Lily a good plant for St. Augustine?
Flax Lily is a perennial for Zone 9b coastal Florida gardens, with medium salt tolerance, reaching 1-3 feet × 2-3 feet (spreading clumps).
Care information verified from
Last reviewed February 2026. Our care guidance comes from trusted horticulture sources and decades of helping St. Augustine gardeners. Conditions here can vary dramatically from one area to the next, so come ask us and we'll tailor it to your yard.