Life Span
Perennial
Annual and Perennial
Type
Ornamental Grasses and Bamboo
Tree
Origin
Southern Europe, Western Europe, Mediterranean
United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States, Texas
Types
-
Quercus stellata
Number of Varieties
1020
0
40000
👆🏻
Habitat
Desert, Dry areas, Dry Forest, Rocky areas
Woodland Garden Canopy
USDA Hardiness Zone
4-95-9
0
99
👆🏻
AHS Heat Zone
9 - 1
9-4
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
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
Habit
Cushion/Mound-forming
Oval or Rounded
Plant Size
Minimum Height
45.00 cm1,830.00 cm
0
3900
👆🏻
Minimum Width
60.96 cm1,680.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Blue Green
Red, Light Yellow, Tan
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
-
Leaf Color in Spring
Blue Green, Silver, Gray
Dark Green
Leaf Color in Summer
Light Green
Dark Green
Leaf Color in Fall
Blue Green, Silver, Gray
Orange, Tan, Bronze, Orange Red
Leaf Color in Winter
Blue Green, Tan, Silver, Gray
-
Shape
Leaf Shape
Grass like
Elliptic and Ovate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun
Full Sun, Partial Sun
Growth Rate
Medium
Slow
Type of Soil
Clay, Loam, Sand
Clay, Loam, Sand
The pH of Soil
Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Average
Bloom Time
Late Spring, Early Summer
Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Salt
Drought, Salt
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
Needs less watering
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Type
Clay, Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Average
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
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
Coarse
Foliage Sheen
Matte
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Butterflies, Hummingbirds
Birds
Allergy
Asthma, Itchiness, Rash, Rhinitis
-
Uses
Aesthetic Uses
Ground Cover
Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
-
Astringent, Emetic, Febrifuge, Tonic
Part of Plant Used
Stem
Leaves, Seeds, Wood
Other Uses
Used as Ornamental plant
Used As Food, Used as Ornamental plant, Used in pulpwood and lumber production
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 stellata
Common Name
Blue Oat Grass
Post Oak
In Hindi
ब्लू जई घास
पोस्ट ओक
In German
Blau Ährengras
Post oak
In French
Bleu Oat Grass
Post oak
In Spanish
Azul hierba de avena
Post oak
In Greek
Μπλε βρώμης Grass
Post Oak
In Portuguese
Azul Aveia
Post Oak
In Polish
Niebieski Owies trawa
post Oak
In Latin
Blue Oat Grass
Post quercu
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
7090
1
27800
👆🏻