Life Span
Perennial
  
Perennial
  
Type
Flowering Plants
  
Grass
  
Origin
South-Central United States
  
Mexico, South-Central United States, Southeastern United States
  
Types
Penstemon digitalis, Penstemon barbatus, Penstemon heterophyllus
  
Dallas Blues grass, Rotstrahlbush grass
  
Habitat
Rocky areas
  
Prairies, Roadsides, Warmer regions
  
USDA Hardiness Zone
5-8
  
4-10
  
AHS Heat Zone
12-1
  
12 - 3
  
Sunset Zone
No Available
  
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
  
  
Plant Color
  
  
Flower Color
White, Purple
  
Pink
  
Flower Color Modifier
Bicolor
  
Bicolor
  
Fruit Color
Not Available
  
Non Fruiting Plant
  
Leaf Color in Spring
Green
  
Green, Dark Green
  
Leaf Color in Summer
Green
  
Light Green
  
Leaf Color in Fall
Green
  
Green, Dark Green, Brown
  
Leaf Color in Winter
Not Available
  
Tan, Brown
  
Shape
  
  
Leaf Shape
Long linear and narrow
  
Grass like
  
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
  
Medium
  
Type of Soil
Loam
  
Clay, Loam, Sand
  
The pH of Soil
Neutral, Alkaline
  
Acidic, Neutral, Alkaline
  
Soil Drainage
Well drained
  
Well drained
  
Bloom Time
Late Spring
  
Late Summer, Early Fall, Fall
  
Repeat Bloomer
No
  
No
  
Tolerances
Not Available
  
Salt
  
Where to Plant?
Ground
  
Ground
  
How to Plant?
From bulbs
  
Divison, Seedlings
  
Plant Maintenance
Medium
  
Low
  
Watering Plants
  
  
Watering Requirements
Requires watering in the growing season
  
Water frequently while growing, Water more frequently during periods of extreme drought
  
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
  
Well drained
  
Sun Exposure
Full Sun, Partial Sun
  
Full Sun, Partial Sun
  
Pruning
Remove damaged leaves
  
Prune when plant is dormant, Remove dead or diseased plant parts
  
Fertilizers
All-Purpose Liquid Fertilizer
  
No fertilizers needed
  
Pests and Diseases
Red blotch
  
Aphids, Ladybug
  
Plant Tolerance
Drought
  
Drought
  
Flowers
Showy
  
Showy
  
Flower Petal Number
Single
  
Single
  
Fruits
  
  
Showy Fruit
No
  
No
  
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
  
Ladybug beetles
  
Allergy
Not Available
  
Not Available
  
Uses
  
  
Aesthetic Uses
Showy Purposes
  
Showy Purposes
  
Beauty Benefits
Not Available
  
Not Available
  
Edible Uses
No
  
No
  
Environmental Uses
Air purification
  
Air purification, Shelter for wildlife
  
Plant Benefits
  
  
Medicinal Uses
Not Available
  
No Medicinal Use
  
Part of Plant Used
Flowers, Leaves
  
Whole plant
  
Other Uses
Showy Purposes, Used as Ornamental plant
  
Used as Ornamental plant
  
Used As Indoor Plant
No
  
No
  
Used As Outdoor Plant
Yes
  
Yes
  
Garden Design
Bedding Plant, Rock Garden / Wall, Wildflower
  
Dried Flower / Everlasting, Container, Edging, Feature Plant, Mixed Border, Rock Garden / Wall
  
Botanical Name
PENSTEMON cobaea
  
Panicum virgatum
  
Common Name
Beardtongue
  
Shenandoah grass, switchgrass
  
In Hindi
Beardtongue
  
Shenandoah grass
  
In German
Bartfaden
  
Shenandoah grass
  
In French
beardtongue
  
Shenandoah grass
  
In Spanish
beardtongue
  
Shenandoah grass
  
In Greek
Beardtongue
  
Shenandoah grass
  
In Portuguese
Beardtongue
  
Shenandoah grass
  
In Polish
Beardtongue
  
Shenandoah grass
  
In Latin
ursus lingua
  
Shenandoah grass
  
Kingdom
Plantae
  
Plantae
  
Phylum
Tracheophyta
  
Magnoliophyta
  
Class
Equisetopsida
  
Liliopsida
  
Order
Lamiales
  
Cyperales
  
Family
Scrophulariaceae
  
Poaceae
  
Genus
Penstemon
  
Muhlenbergia
  
Clade
Angiosperms, Asterids, Eudicots
  
Angiosperms, Commelinids, Monocots
  
Tribe
Not Available
  
Not Available
  
Subfamily
Not Available
  
Not Available
  
Number of Species
Not Available