Life Span
Perennial
Perennial
Type
Flowering Plants
Tree
Origin
Southwestern United States, California
Europe, Southern Asia, Southeastern Asia, India, China
Types
-
cinnamomeum, zeylanicum, delavayi
Number of Varieties
405
0
40000
👆🏻
Habitat
Dry areas, meadows
Dappled Shade, Woodlands
USDA Hardiness Zone
4-97-9
0
99
👆🏻
AHS Heat Zone
9-1
9-6
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 7, 8, 9, 10, 11, 12, 13, 18, 19, 20, 21
H1, 8, 9, 14, 15, 16, 17, 23, 24
Habit
Clump-Forming
Upright/Erect
Plant Size
Minimum Height
61.00 cm910.00 cm
0
3900
👆🏻
Minimum Width
25.40 cm300.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Crimson
White, Red, Pink
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Brown, Chocolate
Leaf Color in Spring
Green
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
Oblong
Ovate
Thorns
✔
✘
✔
✘
Plant Season
Summer
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Fast
Medium
Type of Soil
Loam, Sand
Loam, Sand
The pH of Soil
Neutral, Alkaline
Acidic
Soil Drainage
Well drained
Average
Bloom Time
Early Summer, Summer, Late Summer
Early Spring, Spring, Late Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
-
Where to Plant?
Ground
Ground
How to Plant?
Seedlings, Stem Planting
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Do Not over Water, Requires watering in the growing season, Water Deeply, Water when soil is dry
Reduce water once established
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Neutral, Alkaline
Acidic
Soil Type
Loam, Sand
Loam, Sand
Soil Drainage Capacity
Well drained
Average
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun
Pruning
No pruning needed in the early stages, Prune to stimulate growth, Remove damaged leaves, Remove dead leaves, Remove deadheads
Prune after flowering, Prune if you want to improve plant shape, Remove dead or diseased plant parts
Fertilizers
All-Purpose Liquid Fertilizer, Apply 10-10-10 amount
Doesn't require fertilization when grown in rich soil, Fertilize in early spring, fertilize in winter, Mulch
Pests and Diseases
Insects
Phytophthora, Thripes
Plant Tolerance
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
Coarse
Foliage Sheen
Matte
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Hummingbirds
Butterflies
Allergy
Asthma
-
Uses
Aesthetic Uses
Showy Purposes
Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Insect Repellent, Shadow Tree, Windbreak
Plant Benefits
Medicinal Uses
Burns, Snakebite, Stomach aliments
antimicrobial, Cancer, Dermatitis
Part of Plant Used
Whole plant
Flowers, Leaves
Other Uses
Used as Ornamental plant
Used as fuel, Used as insect repellent, Used as Ornamental plant, Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Mixed Border, Rock Garden / Wall, Wildflower
Feature Plant, Mixed Border, Topiary / Bonsai / Espalier
Botanical Name
PENSTEMON eatonii
RHODODENDRON arboreum
Common Name
Firecracker Penstemon
Chalan, Rose Tree, Tree Rhododendron
In Hindi
Firecracker penstemon
लाल बुरांश
In German
Kracher penstemon
Rhododendron arboreum
In French
Firecracker penstemon
Rhododendron arboreum
In Spanish
Penstemon del petardo
arboreum rododendro
In Greek
πυροτέχνημα penstemon
Rhododendron arboreum
In Portuguese
Penstemon do foguete
arboreum Rhododendron
In Polish
petarda penstemon
różanecznik drzewiasty
In Latin
Firecracker Persicaria
Prunus arborea
Kingdom
Plantae
Plantae
Phylum
-
Magnoliophyta
Class
-
Magnoliopsida
Order
Lamiales
Ericales
Family
Scrophulariaceae
Ericaceae
Genus
Penstemon
Rhododendron
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Asterids, Eudicots
Tribe
-
-
Subfamily
-
-
Number of Species
2501000
1
27800
👆🏻