Life Span
Perennial
Perennial
Type
Ornamental Grasses and Bamboo
Tree
Origin
Southern Europe, Western Europe, Mediterranean
United States, California
Types
-
-
Number of Varieties
108
0
40000
👆🏻
Habitat
Desert, Dry areas, Dry Forest, Rocky areas
Woodland Garden Canopy
USDA Hardiness Zone
4-96-9
0
99
👆🏻
AHS Heat Zone
9 - 1
9-1
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Cushion/Mound-forming
Spreading
Plant Size
Minimum Height
45.00 cm1,520.00 cm
0
3900
👆🏻
Minimum Width
60.96 cm1,370.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Blue Green
Red, Yellow green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
-
Leaf Color in Spring
Blue Green, Silver, Gray
Green, Blue Green
Leaf Color in Summer
Light Green
Green, Blue Green
Leaf Color in Fall
Blue Green, Silver, Gray
Yellow, Orange, Pink
Leaf Color in Winter
Blue Green, Tan, Silver, Gray
-
Shape
Leaf Shape
Grass like
Irregular
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun
Full Sun, Partial Sun
Growth Rate
Medium
Slow
Type of Soil
Clay, Loam, Sand
-
The pH of Soil
Neutral, Alkaline
-
Soil Drainage
Well drained
-
Bloom Time
Late Spring, Early Summer
Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Salt
Drought
Where to Plant?
Container, Ground
Ground
How to Plant?
Rooted stem cutting, Seedlings, Stem Planting
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs, occasional watering once established, Requires regular watering, Requires watering in the growing season
Average Water Needs
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
Clay, Loam, Sand
-
Soil Drainage Capacity
Well drained
-
Sun Exposure
Full Sun
Full Sun, Partial Sun
Pruning
Cut or pinch the stems, Pinch Tips, Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
Red blotch
Plant Tolerance
Salt
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
Fine
Medium
Foliage Sheen
Matte
-
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Butterflies, Hummingbirds
Birds
Allergy
Asthma, Itchiness, Rash, Rhinitis
Pollen
Uses
Aesthetic Uses
Ground Cover
Borders
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
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
Stem
Leaves, Seeds, Wood
Other Uses
Used as Ornamental plant
Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Edging, Mixed Border, Rock Garden / Wall
Feature Plant, Shade Trees, Street Trees
Botanical Name
HELICTOTRICHON sempervirens
QUERCUS douglasii
Common Name
Blue Oat Grass
Blue Oak
In Hindi
ब्लू जई घास
Blue Oak Tree
In German
Blau Ährengras
Blaue Eiche
In French
Bleu Oat Grass
Bleu Oak Tree
In Spanish
Azul hierba de avena
Azul del árbol de roble
In Greek
Μπλε βρώμης Grass
Μπλε Oak Tree
In Portuguese
Azul Aveia
Carvalho azul
In Polish
Niebieski Owies trawa
Niebieski Oak Tree
In Latin
Blue Oat Grass
Blue quercum ligno
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Liliopsida
Magnoliopsida
Order
Poales
Fagales
Family
Poaceae
Fagaceae
Genus
Helictotrichon
Quercus
Clade
Angiosperms, Commelinids, Monocots
Angiosperms, Eudicots, Rosids
Tribe
Aveneae
-
Subfamily
Pooideae
-
Number of Species
7020
1
27800
👆🏻