Life Span
Perennial
Perennial
Type
Tree
Flowering Plants, Fruits, Herbs, Shrubs
Origin
United States, California
Australia, South America
Types
-
Adams Elderberry, Black Beauty Elderberry, Black Lace Elderberry, Johns Elderberry, Nova Elderberry
Habitat
Woodland Garden Canopy
Farms, Homesteads, Near organic waste disposal
USDA Hardiness Zone
6-9
4-8
Sunset Zone
3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
2a, 2b, 3a, 3b, 4, 5, 6, 7, 14, 15, 16, 17
Habit
Spreading
Upright/Erect
Flower Color
Red, Yellow green
White
Flower Color Modifier
Bicolor
-
Fruit Color
-
Purple, Red
Leaf Color in Spring
Green, Blue Green
Green
Leaf Color in Summer
Green, Blue Green
Green
Leaf Color in Fall
Yellow, Orange, Pink
Yellow green
Leaf Shape
Irregular
Compound
Plant Season
Spring, Summer, Fall, Winter
Early Spring
Sunlight
Full Sun, Partial Sun
Full Sun, Part sun
Type of Soil
-
Loamy, Sandy, Well drained
The pH of Soil
-
Slightly Acidic
Bloom Time
Spring
Early Spring, Spring
Tolerances
Drought
Pollution
Where to Plant?
Ground
Ground
How to Plant?
Seedlings
Grafting, Seedlings
Plant Maintenance
Medium
Medium
Watering Requirements
Average Water Needs
Requires regular watering, Use Mulches to help prevent water loss during hot and windy weather
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil pH
-
Slightly Acidic
Soil Type
-
Loamy, Sandy, Well drained
Soil Drainage Capacity
-
Average
Sun Exposure
Full Sun, Partial Sun
Full Sun, Part sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts
Cut or pinch the stems, No pruning needed in the early stages, Prune for shortening long shoots, Prune if you want to improve plant shape, Prune in winter, Prune ocassionally, Remove deadheads
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
Canker, Leaf spot, Powdery mildew, Stem spot, Tomato Ringspot Virus
Plant Tolerance
Drought
Drought
Flowers
Insignificant
Yes
Flower Petal Number
-
Single
Foliage Texture
Medium
Medium
Allergy
Pollen
Diarrhea, Nausea, Vomiting
Environmental Uses
Air purification, Shadow Tree, soil erosion prevension on hill slopes, Wildlife, Windbreak
Air purification
Medicinal Uses
Astringent, Diarrhea, Dysentry, Haemorrhages, Poultice, Sore Eyes, Sore throat
constipation, Fever, Heart problems, High cholestrol, HIV/AIDS, Nerve pain, swine flu
Part of Plant Used
Leaves, Seeds, Wood
Flowers, Fruits
Other Uses
Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
-
Used As Indoor Plant
No
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Feature Plant, Shade Trees, Street Trees
-
Botanical Name
QUERCUS douglasii
Sambucus nigra
Common Name
Blue Oak
Elderberry
In Hindi
Blue Oak Tree
Elderberry
In German
Blaue Eiche
Holunderbeere
In French
Bleu Oak Tree
Sureau
In Spanish
Azul del árbol de roble
Saúco
In Greek
Μπλε Oak Tree
Elderberry
In Portuguese
Carvalho azul
Sabugueiro
In Polish
Niebieski Oak Tree
Bez czarny
In Latin
Blue quercum ligno
Elderberry
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Family
Fagaceae
Adoxaceae
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Season and Care of Blue Oak and Elderberry
Season and care of Blue Oak and Elderberry is important to know. While considering everything about Blue Oak and Elderberry Care, growing season is an essential factor. Blue Oak season is Spring, Summer, Fall and Winter and Elderberry season is Spring, Summer, Fall and Winter. The type of soil for Blue Oak is and for Elderberry is Loamy, Sandy, Well drained while the PH of soil for Blue Oak is and for Elderberry is Slightly Acidic.
Blue Oak and Elderberry Physical Information
Blue Oak and Elderberry physical information is very important for comparison. Blue Oak height is 1,520.00 cm and width 1,370.00 cm whereas Elderberry height is 9.00 cm and width 8.00 cm. The color specification of Blue Oak and Elderberry are as follows:
Blue Oak flower color: Red and Yellow green
Blue Oak leaf color: Green and Blue Green
Elderberry flower color: White
- Elderberry leaf color: Green
Care of Blue Oak and Elderberry
Care of Blue Oak and Elderberry include pruning, fertilizers, watering etc. Blue Oak pruning is done Remove damaged leaves, Remove dead branches, Remove dead leaves and Remove dead or diseased plant parts and Elderberry pruning is done Cut or pinch the stems, No pruning needed in the early stages, Prune for shortening long shoots, Prune if you want to improve plant shape, Prune in winter, Prune ocassionally and Remove deadheads. In summer Blue Oak needs Lots of watering and in winter, it needs Average Water. Whereas, in summer Elderberry needs Lots of watering and in winter, it needs Average Water.