Life Span
Perennial
Perennial
Type
Tree
Flowering Plants
Origin
Central Asia, India, Nepal
South-Central United States
Types
White oak, Bluff oak, Muller oak
Penstemon digitalis, Penstemon barbatus, Penstemon heterophyllus
Number of Varieties
600200
0
40000
👆🏻
Habitat
Clay soil areas, Dry areas, Sandy areas
Rocky areas
USDA Hardiness Zone
6-95-8
0
99
👆🏻
AHS Heat Zone
7-5
12-1
Sunset Zone
H1, 7, 8, 9, 14, 15, 16, 17, 20, 21, 22, 23, 24
No Available
Habit
Oval or Rounded
Clump-Forming
Plant Size
Minimum Height
2,286.00 cm30.00 cm
0
3900
👆🏻
Minimum Width
1,219.20 cm30.50 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Yellow green
White, Purple
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Sandy Brown, Sienna
-
Leaf Color in Spring
Green, Light Green, Gray
Green
Leaf Color in Summer
Green, Gray
Green
Leaf Color in Fall
Green, Dark Green, Gray
Green
Leaf Color in Winter
Dark Green, Gray
-
Shape
Leaf Shape
broad, flat
Long linear and narrow
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
-
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Medium
Medium
Type of Soil
Loam
Loam
The pH of Soil
Acidic
Neutral, Alkaline
Soil Drainage
Average
Well drained
Bloom Time
Spring
Late Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
-
Where to Plant?
Ground
Ground
How to Plant?
Seedlings, Transplanting
From bulbs
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs
Requires watering in the growing season
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic
Neutral, Alkaline
Soil Type
Loam
Loam
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
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
Medium
Foliage Sheen
Glossy
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
Hummingbirds, Butterflies
Allergy
Pollen
-
Uses
Aesthetic Uses
Showy Purposes
Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Nesting sites for birds, Shadow Tree, Shelter for wildlife, Wildlife
Air purification
Plant Benefits
Medicinal Uses
Chronic fatigue, Cramps, Diarrhea, Dysentry, gallstones, Haemorrhages, Menstrual Cramps
-
Part of Plant Used
Leaves, Seeds, Wood
Flowers, Leaves
Other Uses
Used as firewood, used for making charcoal
Showy Purposes, Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees
Bedding Plant, Rock Garden / Wall, Wildflower
Botanical Name
QUERCUS leucotrichophora
PENSTEMON cobaea
Common Name
Banj Oak, Blackjack Oak, Himalayan Oak
Beardtongue
In Hindi
Blackjack Oak Tree
Beardtongue
In German
Blackjack Oak Tree
Bartfaden
In French
Blackjack Oak Tree
beardtongue
In Spanish
Blackjack Oak Tree
beardtongue
In Greek
Blackjack Oak Tree
Beardtongue
In Portuguese
Blackjack Carvalho
Beardtongue
In Polish
Blackjack Oak Tree
Beardtongue
In Latin
Blackjack quercum ligno
ursus lingua
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Tracheophyta
Class
Magnoliopsida
Equisetopsida
Order
Fagales
Lamiales
Family
Fagaceae
Scrophulariaceae
Genus
Quercus
Penstemon
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Tribe
-
-
Subfamily
-
-
Number of Species
60261
1
27800
👆🏻