Life Span
Perennial
Annual
Type
Flowering Plants
Shrub
Origin
North-Central United States, Central United States, Western United States, Texas
Southeastern Asia, India, China
Types
Blue Toadflax, Old-Field Toadflax
Shrub
Number of Varieties
301
0
40000
👆🏻
Habitat
Cultivated Beds
Tropical regions
USDA Hardiness Zone
3-910-15
0
99
👆🏻
AHS Heat Zone
9-1
12-8
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 10
H1, H2, 13, 24
Habit
Upright/Erect
Spreading
Plant Size
Minimum Height
61.00 cm180.00 cm
0
3900
👆🏻
Minimum Width
25.40 cm240.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Pink, Light Blue, Lavender
Lavender
Flower Color Modifier
Bicolor
-
Fruit Color
-
Brown
Leaf Color in Spring
Light Green, Blue Green, Gray Green
Gray Green, Silver
Leaf Color in Summer
Blue Green, Gray Green
Gray Green, Silver
Leaf Color in Fall
Blue Green, Gray Green
Gray Green
Leaf Color in Winter
-
Gray Green
Shape
Leaf Shape
Oval to egg shaped
Lobed
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Fast
Fast
Type of Soil
Clay, Loam
Sand
The pH of Soil
Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring, Early Summer, Summer
Indeterminate
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought, Salt
Where to Plant?
Ground
Ground
How to Plant?
Cuttings, Divison, Seedlings
Stem Cutting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs, Do Not over Water
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
Acidic, Neutral, Alkaline
Soil Type
Clay, Loam
Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
use all-purpose fertilizers
All-Purpose Liquid Fertilizer
Pests and Diseases
Foliar disease, Root rot, Spider mites
Red blotch
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
Bold
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Bumblebees
Butterflies
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
Abandonment, epilepsy, Fever, Gout, Leprosy, Skin irritation, Syphilis, Tooth ache, Ulcers
Part of Plant Used
Leaves, Root
Flowers, Leaves, Root
Other Uses
-
Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Rock Garden / Wall, Wildflower
Container, Feature Plant, Mixed Border, Rock Garden, Wall, Tropical
Botanical Name
PENSTEMON grandiflorus
CALOTROPIS gigantea
Common Name
Large Beardtongue, Shell-leaf Penstemon, Wild Snapdragon
Crown flower
In Hindi
Wild Snapdragon
Crown flower
In German
Wilde Snapdragon
Crown Blume
In French
Snapdragon sauvage
fleur de la Couronne
In Spanish
Salvaje Snapdragon
flor de la corona
In Greek
άγρια Snapdragon
στέμμα λουλούδι
In Portuguese
Selvagem Snapdragon
coroa da flor
In Polish
Dziki Snapdragon
korona kwiatu
In Latin
Phlox Ferae
flos florum
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Scrophulariales
Gentianales
Family
Scrophulariaceae
Asclepiadaceae
Genus
Penstemon
Calotropis
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Asterids, Eudicots
Tribe
-
-
Subfamily
Scrophularioideae
Asclepiadoideae
Number of Species
40200
1
27800
👆🏻