Life Span
Perennial
Perennial
Type
Tree
Flowering Plants
Origin
United States, California
Southwestern United States, Mexico
Types
-
-
Number of Varieties
825
0
40000
👆🏻
Habitat
Woodland Garden Canopy
Alpine Meadows, moist forests, Open areas
USDA Hardiness Zone
6-94-9
0
99
👆🏻
AHS Heat Zone
9-1
9-1
Sunset Zone
3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
Habit
Spreading
Upright/Erect
Plant Size
Minimum Height
1,520.00 cm25.40 cm
0
3900
👆🏻
Minimum Width
1,370.00 cm20.30 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Yellow green
Pink
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Brown
Leaf Color in Spring
Green, Blue Green
Green
Leaf Color in Summer
Green, Blue Green
Green
Leaf Color in Fall
Yellow, Orange, Pink
Green
Leaf Color in Winter
-
Green
Shape
Leaf Shape
Irregular
Long Linear
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun
Growth Rate
Slow
Fast
Type of Soil
-
Loam, Sand
The pH of Soil
-
Neutral, Alkaline
Soil Drainage
-
Well drained
Bloom Time
Spring
Late Spring, Early Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Pollution
Where to Plant?
Ground
Ground
How to Plant?
Seedlings
Layering, Root Division, Stem Cutting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs
Average Water Needs, Never 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
Soil Type
-
Loam, Sand
Soil Drainage Capacity
-
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts
cut main flower spike, Remove damaged leaves, Remove dead branches, Remove dead leaves, remove old stems before spring
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
chrysanthemum eelworms, Slugs, Snails
Plant Tolerance
Drought
Drought
Flowers
Insignificant
Showy
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
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
Hummingbirds, Butterflies
Allergy
Pollen
-
Uses
Aesthetic Uses
Borders
Beautification, Cottage Garden, Landscape Designing, Ornamental use, Water gardening
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Shadow Tree, soil erosion prevension on hill slopes, Wildlife, Windbreak
Air purification, Food for insects, Prevent Soil Erosion
Plant Benefits
Medicinal Uses
Astringent, Diarrhea, Dysentry, Haemorrhages, Poultice, Sore Eyes, Sore throat
-
Part of Plant Used
Leaves, Seeds, Wood
-
Other Uses
Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
Beneficial species for attracting pollinators, deer resistant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees, Street Trees
Container, Cutflower, Mixed Border, Rock Garden / Wall, Wildflower
Botanical Name
QUERCUS douglasii
PENSTEMON barbatus 'Elfin Pink'
Common Name
Blue Oak
Beardlip Penstemon, Elfin Pink Penstemon
In Hindi
Blue Oak Tree
Elfin Pink Penstemon
In German
Blaue Eiche
Elfin Pink Penstemon
In French
Bleu Oak Tree
Elfin Pink Penstemon
In Spanish
Azul del árbol de roble
Elfin Pink Penstemon
In Greek
Μπλε Oak Tree
Elfin Pink Penstemon
In Portuguese
Carvalho azul
Elfin Penstemon -de-rosa
In Polish
Niebieski Oak Tree
Elfin Różowy Penstemon
In Latin
Blue quercum ligno
Elfin Pink Penstemon
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Angiosperms
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Lamiales
Family
Fagaceae
Scrophulariaceae
Genus
Quercus
Penstemon
Clade
Angiosperms, Eudicots, Rosids
Asterids, Eudicots
Tribe
-
-
Subfamily
-
-
Number of Species
20250
1
27800
👆🏻