Life Span
Perennial
Perennial
Type
Perennial
Tender Perennial
Origin
North America, United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, Canada
Africa, Asia, Polynesia, Australia
Types
-
assera , caerulea , cinerascens , petasmatodes
Number of Varieties
27
0
40000
👆🏻
Habitat
gardens, Hardwood forests
mild coastal areas, Upland sandy savannas
USDA Hardiness Zone
5-7-9999
0
99
👆🏻
AHS Heat Zone
7-5
-
Sunset Zone
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10
8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Clump-Forming
Clump-Forming
Plant Size
Minimum Height
15.20 cm40.00 cm
0
3900
👆🏻
Minimum Width
12.70 cm15.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White
White, Blue, Blue Violet
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Light Green
Blue, Violet
Leaf Color in Spring
Green, Blue Green
Green, Blue Green, Dark Green
Leaf Color in Summer
Green, Gray Green
Green, Blue Green, Dark Green
Leaf Color in Fall
Green, Gray Green
Green, Blue Green, Dark Green
Leaf Color in Winter
Light Green
Light Green
Shape
Leaf Shape
Butterfly shaped
Long Narrow
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Partial shade, Full Shade
Full Sun, Partial Sun
Growth Rate
Slow
Medium
Type of Soil
Clay, Loam
Loamy, Sandy, Well drained
The pH of Soil
Neutral, Alkaline
Neutral, Slightly Acidic
Soil Drainage
Average
Well drained
Bloom Time
Late Spring, Early Summer
Early Summer, Summer, Late Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Deer resistant, Drought, Heat Tolerance, Light Frost
Where to Plant?
Ground, Pot
Ground, Pot
How to Plant?
Divison, Seedlings, Stem Planting
Rhizome division, Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Medium
Requires plenty of water during the growing season
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Neutral, Alkaline
Neutral, Slightly Acidic
Soil Type
Clay, Loam
Loamy, Sandy, Well drained
Soil Drainage Capacity
Average
Well drained
Sun Exposure
Partial shade, Full Shade
Full Sun, Partial Sun
Pruning
Remove deadheads, Requires very little pruning
Prune in the late winter or spring, Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
No fertilizers needed
All-Purpose Liquid Fertilizer, slow-release fertilizers
Pests and Diseases
Pests and diseases free, Red blotch
Crown rot, Fungal leaf spots
Plant Tolerance
Drought
Deer resistant, Drought, Heat Tolerance, Light Frost
Flowers
✔
✘
✔
✘
Flower Petal Number
Single
Single
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Coarse
-
Foliage Sheen
Matte
-
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Bees, Butterflies
Birds, Butterflies, Caterpillar
Allergy
-
breathing problems, Dizziness, poisonous if ingested
Uses
Aesthetic Uses
Showy Purposes
along a porch, deck or patio, Showy Purposes, small hedge, Wild gardens
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
Cancer, Diuretic
-
Part of Plant Used
Flowers, Root
-
Other Uses
-
Beneficial species for attracting pollinators
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Groundcover
Mixed Border, Tropical
Botanical Name
JEFFERSONIA diphylla
DIANELLA caerulea
Common Name
-
Blue Flax Lily, Blueberry Lily, Paroo Lily
In Hindi
Twinleaf
blue flax lily
In German
Twinleaf
blau Flachs Lilie
In French
Twinleaf
Dianella caerulea
In Spanish
Twinleaf
Dianella caerulea
In Greek
Twinleaf
Dianella caerulea
In Portuguese
Twinleaf
blue flax lily
In Polish
Twinleaf
blue flax lily
In Latin
Twinleaf
blue flax lily
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Magnoliopsida
Monocots
Order
Ranunculales
Asparagales
Family
Berberidaceae
Liliaceae
Genus
Jeffersonia
Dianella
Clade
Angiosperms, Eudicots
Angiosperms, Monocots
Tribe
-
-
Subfamily
-
-
Number of Species
27
1
27800
👆🏻