Life Span
Perennial
Perennial
Type
Flowering Plants
Tree
Origin
Southwestern United States, California
China
Types
-
Ailanthus altissima
Number of Varieties
4050
0
40000
👆🏻
Habitat
Dry areas, meadows
Fields, Forest edges, Grassland, Roadsides
USDA Hardiness Zone
4-94-8
0
99
👆🏻
AHS Heat Zone
9-1
8-1
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 7, 8, 9, 10, 11, 12, 13, 18, 19, 20, 21
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
Habit
Clump-Forming
Arching/Fountain-shaped
Plant Size
Minimum Height
61.00 cm1,220.00 cm
0
3900
👆🏻
Minimum Width
25.40 cm1,070.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Crimson
Yellow green, Light Green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Pink, Light Green, Sienna
Leaf Color in Spring
Green
Green
Leaf Color in Summer
Green
Dark Green
Leaf Color in Fall
Green
Dark Green
Leaf Color in Winter
-
-
Shape
Leaf Shape
Oblong
Heart-shaped
Thorns
✔
✘
✔
✘
Plant Season
Summer
Spring, Summer
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Fast
Fast
Type of Soil
Loam, Sand
Clay, Loam, Sand
The pH of Soil
Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Average
Bloom Time
Early Summer, Summer, Late Summer
Spring, Late Spring, Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Pollution, Drought, Salt, Soil Compaction
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
Average Water Needs, Do Not over Water
In Summer
Lots of watering
Drought Tolerant, Average Water
In Spring
Moderate
Drought Tolerant, Average Water
In Winter
Average Water
Drought Tolerant, Average Water
Soil
Soil pH
Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Type
Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Average
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Pruning
No pruning needed in the early stages, Prune to stimulate growth, Remove damaged leaves, Remove dead leaves, Remove deadheads
Prune in late summer or fall, Prune in late winter, Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer, Apply 10-10-10 amount
All-Purpose Liquid Fertilizer
Pests and Diseases
Insects
Red blotch, Spotted Lanterfly
Plant Tolerance
Drought
Drought, Variety of soil types
Flowers
Showy
Insignificant
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
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Hummingbirds
Birds
Allergy
Asthma
allergic reaction, Skin irritation
Uses
Aesthetic Uses
Showy Purposes
Beautification, Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
Burns, Snakebite, Stomach aliments
Anthelmintic, Antispasmodic, Asthma, Astringent
Part of Plant Used
Whole plant
Bark, Root
Other Uses
Used as Ornamental plant
Used as Ornamental plant, Used for its medicinal properties, Used for woodware
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Mixed Border, Rock Garden / Wall, Wildflower
Shade Trees, Street Trees
Botanical Name
PENSTEMON eatonii
AILANTHUS altissima
Common Name
Firecracker Penstemon
Tree-of-Heaven
In Hindi
Firecracker penstemon
कल्पवृक्ष
In German
Kracher penstemon
Baum des Himmels
In French
Firecracker penstemon
Arbre de paradis
In Spanish
Penstemon del petardo
Arbol del Cielo
In Greek
πυροτέχνημα penstemon
Δέντρο του Ουρανού
In Portuguese
Penstemon do foguete
Árvore do céu
In Polish
petarda penstemon
Drzewo Nieba
In Latin
Firecracker Persicaria
Lignum de caelo
Kingdom
Plantae
Plantae
Phylum
-
Magnoliophyta
Class
-
Magnoliopsida
Order
Lamiales
Sapindales
Family
Scrophulariaceae
Simaroubaceae
Genus
Penstemon
Ailanthus
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
-
-
Number of Species
2506
1
27800
👆🏻