Life Span
Perennial
Perennial
Type
Flowering Plants
Flowering Plants
Origin
South-Central United States
North-Central United States, Central United States, Western United States, Texas
Types
Penstemon digitalis, Penstemon barbatus, Penstemon heterophyllus
Blue Toadflax, Old-Field Toadflax
Number of Varieties
20030
0
40000
👆🏻
Habitat
Rocky areas
Cultivated Beds
USDA Hardiness Zone
5-83-9
0
99
👆🏻
AHS Heat Zone
12-1
9-1
Sunset Zone
No Available
1a, 1b, 2a, 2b, 3a, 3b, 10
Habit
Clump-Forming
Upright/Erect
Plant Size
Minimum Height
30.00 cm61.00 cm
0
3900
👆🏻
Minimum Width
30.50 cm25.40 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Purple
Pink, Light Blue, Lavender
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
-
Leaf Color in Spring
Green
Light Green, Blue Green, Gray Green
Leaf Color in Summer
Green
Blue Green, Gray Green
Leaf Color in Fall
Green
Blue Green, Gray Green
Leaf Color in Winter
-
-
Shape
Leaf Shape
Long linear and narrow
Oval to egg shaped
Thorns
✔
✘
✔
✘
Plant Season
-
Spring, Summer
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Medium
Fast
Type of Soil
Loam
Clay, Loam
The pH of Soil
Neutral, Alkaline
Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring
Late Spring, Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Drought
Where to Plant?
Ground
Ground
How to Plant?
From bulbs
Cuttings, Divison, Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Requires watering in the growing season
Average Water Needs, Do Not over Water
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Neutral, Alkaline
Neutral, Alkaline
Soil Type
Loam
Clay, Loam
Soil Drainage Capacity
Well drained
Well drained
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
use all-purpose fertilizers
Pests and Diseases
Red blotch
Foliar disease, Root rot, Spider mites
Plant Tolerance
Drought
Drought
Flowers
Showy
Showy
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
Medium
Medium
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Hummingbirds, Butterflies
Bumblebees
Allergy
-
Depression, High blood cholestrol, Pain
Uses
Aesthetic Uses
Showy Purposes
Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
-
Analgesic, Febrifuge, Stomachic
Part of Plant Used
Flowers, Leaves
Leaves, Root
Other Uses
Showy Purposes, Used as Ornamental plant
-
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Bedding Plant, Rock Garden / Wall, Wildflower
Rock Garden / Wall, Wildflower
Botanical Name
PENSTEMON cobaea
PENSTEMON grandiflorus
Common Name
Beardtongue
Large Beardtongue, Shell-leaf Penstemon, Wild Snapdragon
In Hindi
Beardtongue
Wild Snapdragon
In German
Bartfaden
Wilde Snapdragon
In French
beardtongue
Snapdragon sauvage
In Spanish
beardtongue
Salvaje Snapdragon
In Greek
Beardtongue
άγρια Snapdragon
In Portuguese
Beardtongue
Selvagem Snapdragon
In Polish
Beardtongue
Dziki Snapdragon
In Latin
ursus lingua
Phlox Ferae
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Equisetopsida
Magnoliopsida
Order
Lamiales
Scrophulariales
Family
Scrophulariaceae
Scrophulariaceae
Genus
Penstemon
Penstemon
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Asterids, Eudicots
Tribe
-
-
Subfamily
-
Scrophularioideae
Number of Species
26140
1
27800
👆🏻