Alert: Limited Online Availability

Now that summer is here, we have limited our stock for online purchase. Find Monrovia plants at your local garden center. Pre-order for 2023 will be available later this year. ×

We no longer grow this plant.
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Tasred™ Flax Lily

Dianella tasmanica 'TR20' PP #18,737

Unique green foliage has a red-tinged base which becomes more acute in colder months, fading to green in summer. Blue flowers on red stems are followed by highly ornamental purple berries. Excellent choice for both tropical and modern garden design. Appreciates sun in cooler areas, dappled to deep shade in warmer climates. Evergreen.
There are very few rules in gardening, but perhaps the most important one is to work within your zone. Choosing plants that grow and thrive in your particular climate is the very first step toward having a beautiful garden . Learn More

Your climate might be too cold for this plant:


Filtered sun, Full shade, Full sun, Partial shade, Partial sun

Once established, water occasionally; more in extreme heat or containers.


Due to the seasonal nature of plants, availability at your local garden center is not guaranteed. Give them a call before visiting.

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Botanical Pronunciationdi-NEL-la tas-MAN-i-ca
Average Size at MaturityFoliage reaches 18 to 24 in. tall and wide; blooms reach 36 in. tall.
Bloom TimeSpring
Design IdeasPlant in mass to create a formal border backdrop, or in a long, meandering swath with large boulder accents to give the impression of flowing water. Low water needs make it particularly useful in providing a lush feel to dry shade settings where the purple berries will glisten in dappled sunlight. Blends well into Japanese style gardens. Spot into a perennial bed for texture. An excellent smaller alternative for often overused Phormiums.
Deciduous/ EvergreenEvergreen
Flower AttributeShowy Flowers
Flower ColorBlue
Foliage ColorGreen
Garden StyleContemporary, Mediterranean
Growth HabitCompact
Growth RateFast
Landscape UseBorder, Container, Erosion Control, Mass Planting, Coastal Exposure, Dry Shade
Light NeedsFiltered sun, Full shade, Full sun, Partial shade, Partial sun
Patent ActAsexual reproduction of plants protected by the Plant Patent Act is prohibited during the life of the patent.
Soil NeedsAll-Purpose Plant Food
Special FeatureClump Forming, Easy Care, Ornamental Berries, Tolerates Acidic Soil, Tolerates Alkaline Soil, Waterwise, Year-round Interest, Fast Growing, Compact Form
Water NeedsLow
Watering NeedsOnce established, water occasionally; more in extreme heat or containers.
Companion PlantsLoropetalum (Loropetalum); Mexican Heather (Cuphea); Montbretia (Crocosmia); Lilyturf (Liriope); Phormium (Phormium)

Thrives in organically rich, well-drained soils; tolerates clay. Best with some shade in hot summer regions. Water deeply, regularly during first growing season to establish an extensive root system; reduce frequency once established. Remove spent flower stalks and old foliage as new leaves emerge. Divide if needed in early spring.

This Plant's Growing Zones: 7-11

USDA Cold Hardiness Zone Map

Your USDA Cold Hardiness Zone:

Your climate may be too cold for this plant