Life Span
Perennial
Perennial
Type
Flowering Plants
Shrub
Origin
South-Central United States
Australia
Types
Penstemon digitalis, Penstemon barbatus, Penstemon heterophyllus
Alyogyne huegelii
Number of Varieties
2005
0
40000
👆🏻
Habitat
Rocky areas
subtropical regions, Temperate Regions, Tropical regions, Warmer regions
USDA Hardiness Zone
5-89-11
0
99
👆🏻
AHS Heat Zone
12-1
12-1
Sunset Zone
No Available
H1, H2, 13, 14, 15, 16, 17, 20, 21, 22, 23, 24
Habit
Clump-Forming
Upright/Erect
Plant Size
Minimum Height
30.00 cm120.00 cm
0
3900
👆🏻
Minimum Width
30.50 cm120.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Purple
Blue, Purple, Blue Violet
Flower Color Modifier
Bicolor
-
Fruit Color
-
-
Leaf Color in Spring
Green
Dark Green
Leaf Color in Summer
Green
Dark Green
Leaf Color in Fall
Green
Dark Green
Leaf Color in Winter
-
Dark Green
Shape
Leaf Shape
Long linear and narrow
Irregular
Thorns
✔
✘
✔
✘
Plant Season
-
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full 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
Indeterminate
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
-
Where to Plant?
Ground
Ground, Pot
How to Plant?
From bulbs
Seedlings, Semi-hardwood cuttings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Requires watering in the growing season
Average Water Needs, Do Not over Water, Requires regular watering
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
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, Rust aphids
Plant Tolerance
Drought
-
Flowers
✔
✘
✔
✘
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
Butterflies, Flying insects, Hummingbirds, Insects
Allergy
-
-
Uses
Aesthetic Uses
Showy Purposes
Borders, Showy Purposes, small hedge
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
-
High blood pressure, lowering blood pressure
Part of Plant Used
Flowers, Leaves
Flowers, Leaves
Other Uses
Showy Purposes, Used as Ornamental plant
Decoration Purposes
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Bedding Plant, Rock Garden / Wall, Wildflower
Container, Feature Plant, Hedges, Mixed Border, Rock Garden, Wall
Botanical Name
PENSTEMON cobaea
ALYOGYNE huegelii 'Monle'
Common Name
Beardtongue
Blue Hibiscus, Purple Delight Blue Hibiscus
In Hindi
Beardtongue
Blue Hibiscus
In German
Bartfaden
Blauer Hibiskus Baum
In French
beardtongue
Bleu Hibiscus Arbre
In Spanish
beardtongue
Azul árbol del hibisco
In Greek
Beardtongue
Μπλε Hibiscus Tree
In Portuguese
Beardtongue
Árvore azul do hibiscus
In Polish
Beardtongue
Niebieski Hibiscus Drzewo
In Latin
ursus lingua
Hibiscus lignum blue
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Equisetopsida
Magnoliopsida
Order
Lamiales
Malvales
Family
Scrophulariaceae
Malvaceae
Genus
Penstemon
Alyogyne
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
-
Hibisceae
Subfamily
-
Malvoideae
Number of Species
261200
1
27800
👆🏻