Life Span
Perennial
Annual and Perennial
Type
Tree
Broadleaf Evergreen
Origin
United States, California
North America, Europe, Asia
Types
-
Andromeda polifolia var. polifolia, Andromeda polifolia var. glaucophylla
Number of Varieties
82
0
40000
👆🏻
Habitat
Woodland Garden Canopy
Bog Garden, Fens, Swamps
USDA Hardiness Zone
6-92-6
0
99
👆🏻
AHS Heat Zone
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
-
Habit
Spreading
Cushion/Mound-forming
Plant Size
Minimum Height
1,520.00 cm33.00 cm
0
3900
👆🏻
Minimum Width
1,370.00 cm46.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Yellow green
White, Pink, Light Pink
Flower Color Modifier
Bicolor
-
Fruit Color
-
-
Leaf Color in Spring
Green, Blue Green
Gray Green
Leaf Color in Summer
Green, Blue Green
Gray Green
Leaf Color in Fall
Yellow, Orange, Pink
Gray Green
Leaf Color in Winter
-
Gray Green
Shape
Leaf Shape
Irregular
Long Linear
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Slow
Slow
Type of Soil
-
Loam
The pH of Soil
-
Acidic
Soil Drainage
-
Average
Bloom Time
Spring
Late Spring, Early Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
-
Where to Plant?
Ground
Container, Ground
How to Plant?
Seedlings
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs
Do not let dry out between waterings, Keep ground moist
In Summer
Lots of watering
Average Water, Ample Water
In Spring
Moderate
Ample Water
In Winter
Average Water
Not so frequently
Soil
Soil pH
-
Acidic
Soil Type
-
Loam
Soil Drainage Capacity
-
Average
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts
Prune for size control, Remove short twigs
Fertilizers
All-Purpose Liquid Fertilizer
fertilize in spring
Pests and Diseases
Red blotch
-
Plant Tolerance
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
Fine
Foliage Sheen
-
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
pollinators
Allergy
Pollen
-
Uses
Aesthetic Uses
Borders
Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Shadow Tree, soil erosion prevension on hill slopes, Wildlife, Windbreak
-
Plant Benefits
Medicinal Uses
Astringent, Diarrhea, Dysentry, Haemorrhages, Poultice, Sore Eyes, Sore throat
-
Part of Plant Used
Leaves, Seeds, Wood
Flowers
Other Uses
Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
As a tea substitute
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees, Street Trees
Bog Garden, Container, Mixed Border, Rock Garden, Wall
Botanical Name
QUERCUS douglasii
ANDROMEDA polifolia
Common Name
Blue Oak
Bog Rosemary
In Hindi
Blue Oak Tree
Bog Rosemary
In German
Blaue Eiche
Rosmarinheide
In French
Bleu Oak Tree
Andromeda polifolia
In Spanish
Azul del árbol de roble
Andromeda polifolia
In Greek
Μπλε Oak Tree
Bog Rosemary
In Portuguese
Carvalho azul
Bog Rosemary
In Polish
Niebieski Oak Tree
Modrzewnica zwyczajna
In Latin
Blue quercum ligno
Bog Rosemary
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Ericales
Family
Fagaceae
Ericaceae
Genus
Quercus
Andromeda
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Tribe
-
-
Subfamily
-
Vaccinioideae
Number of Species
202
1
27800
👆🏻