Life Span
Perennial
Perennial
Type
Tree
Perennial, Shrub
Origin
Central Asia, India, Nepal
Northwestern United States, Canada
Types
White oak, Bluff oak, Muller oak
sharpleaf penstemon, white-margined beardtongue, lowland beardtongue
Number of Varieties
60078
0
40000
👆🏻
Habitat
Clay soil areas, Dry areas, Sandy areas
foothill woods, High elevation, Open areas, Rocky areas
USDA Hardiness Zone
6-94-9
0
99
👆🏻
AHS Heat Zone
7-5
9-1
Sunset Zone
H1, 7, 8, 9, 14, 15, 16, 17, 20, 21, 22, 23, 24
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 14, 15
Habit
Oval or Rounded
Mat-forming
Plant Size
Minimum Height
2,286.00 cm45.72 cm
0
3900
👆🏻
Minimum Width
1,219.20 cm40.64 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Yellow green
Purple
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Sandy Brown, Sienna
Brown
Leaf Color in Spring
Green, Light Green, Gray
Dark Green
Leaf Color in Summer
Green, Gray
Dark Green
Leaf Color in Fall
Green, Dark Green, Gray
Dark Green
Leaf Color in Winter
Dark Green, Gray
Dark Green
Shape
Leaf Shape
broad, flat
Narrow and lance shape
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Medium
Slow
Type of Soil
Loam
Loam, Sand
The pH of Soil
Acidic
Acidic, Neutral
Soil Drainage
Average
Well drained
Bloom Time
Spring
Late Spring, Early Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Ground
Ground
How to Plant?
Seedlings, Transplanting
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs
Needs less watering, Requires regular watering, Water occasionally
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic
Acidic, Neutral
Soil Type
Loam
Loam, Sand
Soil Drainage Capacity
Average
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead 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
✔
✘
✔
✘
Flower Petal Number
-
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
Glossy
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
Hummingbirds, Butterflies
Allergy
Pollen
Asthma, Pollen
Uses
Aesthetic Uses
Showy Purposes
Cottage Garden, Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Nesting sites for birds, Shadow Tree, Shelter for wildlife, Wildlife
Air purification, Wildlife
Plant Benefits
Medicinal Uses
Chronic fatigue, Cramps, Diarrhea, Dysentry, gallstones, Haemorrhages, Menstrual Cramps
Recovering internal injuries, Wounds
Part of Plant Used
Leaves, Seeds, Wood
Flowers
Other Uses
Used as firewood, used for making charcoal
Container, Used as Ornamental plant, Veterinarian uses
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees
Alpine, Container, Mixed Border, Rock Garden / Wall, Wildflower
Botanical Name
QUERCUS leucotrichophora
PENSTEMON fruticosus 'Purple Haze'
Common Name
Banj Oak, Blackjack Oak, Himalayan Oak
Bush Penstemon, Shrubby Penstemon
In Hindi
Blackjack Oak Tree
Bush Penstemon
In German
Blackjack Oak Tree
Bush Penstemon
In French
Blackjack Oak Tree
Bush Penstemon
In Spanish
Blackjack Oak Tree
Bush Penstemon
In Greek
Blackjack Oak Tree
Μπους Penstemon
In Portuguese
Blackjack Carvalho
Bush, Penstemon
In Polish
Blackjack Oak Tree
Bush Penstemon
In Latin
Blackjack quercum ligno
Persicaria Bush
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Scrophulariales
Family
Fagaceae
Scrophulariaceae
Genus
Quercus
Penstemon
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Tribe
-
-
Subfamily
-
-
Number of Species
60250
1
27800
👆🏻