Life Span
Perennial
Perennial
Type
Perennial
Grass
Origin
North America, United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, Canada
World/Pandemic, North America, Europe, Russia/Siberia, Asia
Types
-
Blue fescue, Large Blue fescue
Number of Varieties
21
0
40000
👆🏻
Habitat
gardens, Hardwood forests
Moist Soils, Rocky areas, Well Drained
USDA Hardiness Zone
5-74-8
0
99
👆🏻
AHS Heat Zone
7-5
8 - 1
Sunset Zone
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Clump-Forming
Clump-Forming
Plant Size
Minimum Height
15.20 cm30.50 cm
0
3900
👆🏻
Minimum Width
12.70 cm25.40 cm
0
6350
👆🏻
Plant Color
Flower Color
White
-
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Light Green
-
Leaf Color in Spring
Green, Blue Green
Blue Green, Gray
Leaf Color in Summer
Green, Gray Green
Light Green
Leaf Color in Fall
Green, Gray Green
Blue Green, Gray
Leaf Color in Winter
Light Green
Blue Green, Tan, Gray
Shape
Leaf Shape
Butterfly shaped
Grass like
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
Loam, Sand
The pH of Soil
Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Average
Well drained
Bloom Time
Late Spring, Early Summer
Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Ground, Pot
Container, Ground
How to Plant?
Divison, Seedlings, Stem Planting
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Medium
Requires regular watering
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Neutral, Alkaline
Acidic, Neutral
Soil Type
Clay, Loam
Loam, Sand
Soil Drainage Capacity
Average
Well drained
Sun Exposure
Partial shade, Full Shade
Full Sun, Partial Sun
Pruning
Remove deadheads, Requires very little pruning
Cut or pinch the stems, Remove dead leaves, Remove dead or diseased plant parts
Fertilizers
No fertilizers needed
Apply 10-10-10 amount
Pests and Diseases
Pests and diseases free, Red blotch
Red blotch
Plant Tolerance
Drought
Drought
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
Fine
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Bees, Butterflies
Birds, Butterflies
Allergy
-
-
Uses
Aesthetic Uses
Showy Purposes
Ground Cover
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification, Provides ground cover
Plant Benefits
Medicinal Uses
Cancer, Diuretic
-
Part of Plant Used
Flowers, Root
Flowers, Seeds
Other Uses
-
Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Groundcover
Bedding Plant, Container, Feature Plant, Mixed Border, Rock Garden / Wall
Botanical Name
JEFFERSONIA diphylla
FESTUCA glauca 'Boulder Blue'
Common Name
-
Blue Fescue, Boulder Blue Fescue
In Hindi
Twinleaf
Boulder Blue Fescue
In German
Twinleaf
Boulder Blau -Schwingel
In French
Twinleaf
Boulder bleu fétuque
In Spanish
Twinleaf
Boulder azul de la hierba festuca
In Greek
Twinleaf
Boulder μπλε γρασίδι φεστούκα
In Portuguese
Twinleaf
Boulder Blue Grass festuca
In Polish
Twinleaf
Boulder niebieskie trawy kostrzewy
In Latin
Twinleaf
Hyacintho herba, lapidem fescue
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Magnoliopsida
Liliopsida
Order
Ranunculales
Cyperales
Family
Berberidaceae
Poaceae
Genus
Jeffersonia
Festuca
Clade
Angiosperms, Eudicots
Angiosperms, Commelinids, Monocots
Tribe
-
Poeae
Subfamily
-
Pooideae
Number of Species
261
1
27800
👆🏻