Life Span
Perennial
  
Perennial
  
Type
Flowering Plants
  
Grass
  
Origin
South-Central United States
  
North America, Canada, Mexico, China
  
Types
Penstemon digitalis, Penstemon barbatus, Penstemon heterophyllus
  
Not available
  
Number of Varieties
Not Available
  
Habitat
Rocky areas
  
All sorts of environments
  
USDA Hardiness Zone
5-8
  
5-9
  
AHS Heat Zone
12-1
  
9 - 1
  
Sunset Zone
No Available
  
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23
  
Habit
Clump-Forming
  
Upright/Erect
  
Plant Size
  
  
Plant Color
  
  
Flower Color
White, Purple
  
Orange, Purple
  
Flower Color Modifier
Bicolor
  
Bicolor
  
Fruit Color
Not Available
  
Brown, Light brown
  
Leaf Color in Spring
Green
  
Blue Green, Steel Blue
  
Leaf Color in Summer
Green
  
Light Green
  
Leaf Color in Fall
Green
  
Blue Green, Steel Blue
  
Leaf Color in Winter
Not Available
  
Tan, Sandy Brown
  
Shape
  
  
Leaf Shape
Long linear and narrow
  
Orbicular
  
Thorns
No
  
No
  
Plant Season
Not Available
  
Spring, Summer, Fall, Winter
  
Growing Conditions
  
  
Sunlight
Full Sun, Partial Sun
  
Full Sun, Partial Sun
  
Growth Rate
Medium
  
Fast
  
Type of Soil
Loam
  
Clay, Loam, Sand
  
The pH of Soil
Neutral, Alkaline
  
Acidic, Neutral, Alkaline
  
Soil Drainage
Well drained
  
Average
  
Bloom Time
Late Spring
  
Early Summer, Summer, Late Summer
  
Repeat Bloomer
No
  
No
  
Tolerances
Not Available
  
Pollution, Drought, Soil Compaction
  
Where to Plant?
Ground
  
Container, Ground, Pot
  
How to Plant?
From bulbs
  
Seedlings
  
Plant Maintenance
Medium
  
Medium
  
Watering Plants
  
  
Watering Requirements
Requires watering in the growing season
  
Average Water Needs
  
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, Alkaline
  
Soil Type
Loam
  
Clay, Loam, Sand
  
Soil Drainage Capacity
Well drained
  
Average
  
Sun Exposure
Full Sun, Partial Sun
  
Full Sun, Partial Sun
  
Pruning
Remove damaged leaves
  
Remove damaged leaves, Remove dead branches, Remove dead leaves
  
Fertilizers
All-Purpose Liquid Fertilizer
  
All-Purpose Liquid Fertilizer
  
Pests and Diseases
Red blotch
  
Aphids, Rust, Spider mites
  
Plant Tolerance
Drought
  
Drought
  
Flowers
Showy
  
Showy
  
Flower Petal Number
Single
  
Single
  
Fruits
  
  
Showy Fruit
No
  
Yes
  
Edible Fruit
No
  
No
  
Fragrance
  
  
Fragrant Flower
No
  
No
  
Fragrant Fruit
No
  
No
  
Fragrant Leaf
No
  
No
  
Fragrant Bark/Stem
No
  
No
  
Showy Foliage
No
  
Yes
  
Showy Bark
No
  
No
  
Foliage Texture
Medium
  
Fine
  
Foliage Sheen
Matte
  
Matte
  
Evergreen
No
  
No
  
Invasive
Not Available
  
No
  
Self-Sowing
No
  
Yes
  
Attracts
Hummingbirds, Butterflies
  
Birds
  
Allergy
Not Available
  
Scratches
  
Uses
  
  
Aesthetic Uses
Showy Purposes
  
Not Available
  
Beauty Benefits
Not Available
  
Not Available
  
Edible Uses
No
  
No
  
Environmental Uses
Air purification
  
Air purification, Biodegradable plastics production, Soil conservation
  
Plant Benefits
  
  
Medicinal Uses
Not Available
  
Not Available
  
Part of Plant Used
Flowers, Leaves
  
Not Available
  
Other Uses
Showy Purposes, Used as Ornamental plant
  
Animal Feed, Used to feed livestock
  
Used As Indoor Plant
No
  
No
  
Used As Outdoor Plant
Yes
  
Yes
  
Garden Design
Bedding Plant, Rock Garden / Wall, Wildflower
  
Edging, Feature Plant, Foundation, Mixed Border, Wildflower
  
Botanical Name
PENSTEMON cobaea
  
PANICUM virgatum 'Dallas Blues'
  
Common Name
Beardtongue
  
Dallas Blues Switchgrass, Switchgrass
  
In Hindi
Beardtongue
  
Dallas Blues Grass
  
In German
Bartfaden
  
Dallas Blues Grass
  
In French
beardtongue
  
Dallas Blues Grass
  
In Spanish
beardtongue
  
Dallas azules Hierba
  
In Greek
Beardtongue
  
Dallas Blues Grass
  
In Portuguese
Beardtongue
  
Dallas azuis da grama
  
In Polish
Beardtongue
  
Dallas Blues Grass
  
In Latin
ursus lingua
  
Dallas Blues Grass
  
Kingdom
Plantae
  
Plantae
  
Phylum
Tracheophyta
  
Magnoliophyta
  
Class
Equisetopsida
  
Liliopsida
  
Order
Lamiales
  
Poales
  
Family
Scrophulariaceae
  
Poaceae
  
Genus
Penstemon
  
Panicum
  
Clade
Angiosperms, Asterids, Eudicots
  
Angiosperms, Commelinids, Monocots
  
Tribe
Not Available
  
Not Available
  
Subfamily
Not Available
  
Panicoideae