Life Span
Perennial
Biennial
Type
Flowering Plants
Tree
Origin
South-Central United States
Australia
Types
Penstemon digitalis, Penstemon barbatus, Penstemon heterophyllus
Narrowleaf Bottle Tree, Pink Flame Tree, Rusty Kurrajong
Number of Varieties
20030
0
40000
👆🏻
Habitat
Rocky areas
Subtropical climates, Subtropical forests
USDA Hardiness Zone
5-89-11
0
99
👆🏻
AHS Heat Zone
12-1
12-9
Sunset Zone
No Available
H1, H2, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Clump-Forming
Upright/Erect
Plant Size
Minimum Height
30.00 cm2,743.20 cm
0
3900
👆🏻
Minimum Width
30.50 cm1,500.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Purple
Crimson, Orange Red
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Dark Red, Sienna, Chocolate
Leaf Color in Spring
Green
-
Leaf Color in Summer
Green
Red, Green, Light Green
Leaf Color in Fall
Green
Green
Leaf Color in Winter
-
Green
Shape
Leaf Shape
Long linear and narrow
Lobed
Thorns
✔
✘
✔
✘
Plant Season
-
Spring, Summer
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Medium
Fast
Type of Soil
Loam
Loam, Sand
The pH of Soil
Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring
Early Spring, Spring, Late Spring, Early Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Pollution, Drought
Where to Plant?
Ground
Ground
How to Plant?
From bulbs
Grafting, Seedlings
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
Soil Type
Loam
Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun
Pruning
Remove damaged leaves
Remove branches, Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts, Remove deadheads
Fertilizers
All-Purpose Liquid Fertilizer
Nitrogen
Pests and Diseases
Red blotch
Red blotch
Plant Tolerance
Drought
Drought, Pollution
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
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Hummingbirds, Butterflies
Hummingbirds
Allergy
-
allergic reaction, Skin irritation
Uses
Aesthetic Uses
Showy Purposes
Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification, Nesting sites for birds, Shadow Tree, Wildlife
Plant Benefits
Medicinal Uses
-
-
Part of Plant Used
Flowers, Leaves
Root, Seeds
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
Feature Plant, Shade Trees, Street Trees, Tropical
Botanical Name
PENSTEMON cobaea
BRACHYCHITON rupestris
Common Name
Beardtongue
Australian Flame Tree, Flame Bottle Tree, Illawarra Flame Tree
In Hindi
Beardtongue
बोतल ट्री
In German
Bartfaden
Flaschenbaum
In French
beardtongue
Bouteille Arbre
In Spanish
beardtongue
Árbol de la botella
In Greek
Beardtongue
Μπουκάλι Δέντρο
In Portuguese
Beardtongue
Bottle Tree
In Polish
Beardtongue
Butelka Drzewo
In Latin
ursus lingua
Utrem ligno
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Equisetopsida
Magnoliopsida
Order
Lamiales
Malvales
Family
Scrophulariaceae
Sterculiaceae
Genus
Penstemon
brachychiton
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
-
Sterculieae
Subfamily
-
Sterculioideae
Number of Species
26130
1
27800
👆🏻