Life Span
Perennial
Annual
Type
Tree
Flowering Plants
Origin
United States, California
Asia, Europe
Types
-
Blue & Purple Rain viola, Bowles' Black pansy, Fizzy Lemonberry pansy, Karma Yellow pansy
Number of Varieties
8150
0
40000
👆🏻
Habitat
Woodland Garden Canopy
Fields, gardens, meadows, rocky outcrops, wastelands
USDA Hardiness Zone
6-94-8
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
A1, A2, A3, H1, H2, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Spreading
Cushion/Mound-forming
Plant Size
Minimum Height
1,520.00 cm1.50 cm
0
3900
👆🏻
Minimum Width
1,370.00 cm0.75 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Yellow green
Blue, Orange, Pink, Red, White
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
-
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
Ovate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Fall, Spring, Summer, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun
Growth Rate
Slow
Fast
Type of Soil
-
Rich, Well drained
The pH of Soil
-
Acidic
Soil Drainage
-
Well drained
Bloom Time
Spring
Fall, Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
-
Where to Plant?
Ground
Container, Ground, Pot
How to Plant?
Seedlings
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs
It cannot sustain wet-feet, Keep the ground moist but not water-logged, Requires regular watering, Use and maintain water-efficient soaker hoses
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
-
Acidic
Soil Type
-
Rich, Well drained
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 or pinch the stems, Prune after flowering, Prune for shortening long shoots, Remove deadheads
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
Aphids, Crown rot, Downy mildew, Gray mold, Mosaic viruses, Powdery mildew, Root rot, Slugs, Snails, Spot anthracnose
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
-
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
-
Allergy
Pollen
-
Uses
Aesthetic Uses
Borders
Beautification, Bouquets, Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Shadow Tree, soil erosion prevension on hill slopes, Wildlife, Windbreak
Air purification
Plant Benefits
Medicinal Uses
Astringent, Diarrhea, Dysentry, Haemorrhages, Poultice, Sore Eyes, Sore throat
Asthma, epilepsy, Heart problems
Part of Plant Used
Leaves, Seeds, Wood
Flowers, Leaves
Other Uses
Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
-
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees, Street Trees
Bedding Plant, Feature Plant, Foundation
Botanical Name
QUERCUS douglasii
Viola tricolor var. hortensis
Common Name
Blue Oak
Pansy
In Hindi
Blue Oak Tree
स्रीवत
In German
Blaue Eiche
Stiefmütterchen
In French
Bleu Oak Tree
Pensée
In Spanish
Azul del árbol de roble
Pensamiento
In Greek
Μπλε Oak Tree
πανσές
In Portuguese
Carvalho azul
amor-perfeito
In Polish
Niebieski Oak Tree
Bratek
In Latin
Blue quercum ligno
Cinaede fill
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Anthophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Malpighiales
Family
Fagaceae
Violaceae
Genus
Quercus
Viola
Clade
Angiosperms, Eudicots, Rosids
-
Tribe
-
-
Subfamily
-
-
Number of Species
20300
1
27800
👆🏻