Life Span
Perennial
Perennial
Type
Flowering Plants
Shrub
Origin
South-Central United States
North America, United States, North-Central United States, Central United States, Canada
Types
Penstemon digitalis, Penstemon barbatus, Penstemon heterophyllus
Blue False Indigo
White False Indigo
Number of Varieties
2002
0
40000
👆🏻
Habitat
Rocky areas
gardens, Grassland, Warmer regions
USDA Hardiness Zone
5-82-8
0
99
👆🏻
AHS Heat Zone
12-1
8-1
Sunset Zone
No Available
A1, A2, A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9
Habit
Clump-Forming
Oval or Rounded
Plant Size
Minimum Height
30.00 cm60.00 cm
0
3900
👆🏻
Minimum Width
30.50 cm120.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Purple
Purple
Flower Color Modifier
Bicolor
-
Fruit Color
-
Light Green
Leaf Color in Spring
Green
Light Green, Gray Green, Gray
Leaf Color in Summer
Green
Light Green, Gray Green, Gray
Leaf Color in Fall
Green
Light Green, Gray Green, Gray
Leaf Color in Winter
-
-
Shape
Leaf Shape
Long linear and narrow
Ovate
Thorns
✔
✘
✔
✘
Plant Season
-
Summer, Fall
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Medium
Medium
Type of Soil
Loam
Loam, Sand
The pH of Soil
Neutral, Alkaline
Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring
Summer, Late Summer, Early Fall
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Drought
Where to Plant?
Ground
Ground, Pot
How to Plant?
From bulbs
Seedlings, Stem Planting
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
Neutral, Alkaline
Soil Type
Loam
Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
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
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
Fine
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Hummingbirds, Butterflies
-
Allergy
-
-
Uses
Aesthetic Uses
Showy Purposes
Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
-
-
Part of Plant Used
Flowers, Leaves
Whole plant
Other Uses
Showy Purposes, Used as Ornamental plant
Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Bedding Plant, Rock Garden / Wall, Wildflower
Foundation, Mixed Border, Rock Garden, Wall
Botanical Name
PENSTEMON cobaea
AMORPHA canescens
Common Name
Beardtongue
False Indigo
In Hindi
Beardtongue
इंडिगो
In German
Bartfaden
falsches Indigo
In French
beardtongue
faux Indigo
In Spanish
beardtongue
Falso Indigo
In Greek
Beardtongue
Λάθος Indigo
In Portuguese
Beardtongue
false Indigo
In Polish
Beardtongue
fałsz Indigo
In Latin
ursus lingua
falsum indicum
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Equisetopsida
-
Order
Lamiales
Fabales
Family
Scrophulariaceae
Fabaceae
Genus
Penstemon
Amorpha
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
-
-
Number of Species
26121
1
27800
👆🏻