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Blue Oak
Blue Oak

Bush Penstemon
Bush Penstemon



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Blue Oak
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Bush Penstemon

Compare Blue Oak and Bush Penstemon

What is

Life Span

Perennial
Perennial

Type

Tree
Perennial, Shrub

Origin

United States, California
Northwestern United States, Canada

Types

-
sharpleaf penstemon, white-margined beardtongue, lowland beardtongue

Number of Varieties

878
0 40000
👆🏻

Habitat

Woodland Garden Canopy
foothill woods, High elevation, Open areas, Rocky areas

USDA Hardiness Zone

6-94-9
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
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 14, 15

Habit

Spreading
Mat-forming

Information

Plant Size

Minimum Height

1,520.00 cm45.72 cm
0 3900
👆🏻

Minimum Width

1,370.00 cm40.64 cm
0 6350
👆🏻

Plant Color

Flower Color

Red, Yellow green
Purple

Flower Color Modifier

Bicolor
Bicolor

Fruit Color

-
Brown

Leaf Color in Spring

Green, Blue Green
Dark Green

Leaf Color in Summer

Green, Blue Green
Dark Green

Leaf Color in Fall

Yellow, Orange, Pink
Dark Green

Leaf Color in Winter

-
Dark Green

Shape

Leaf Shape

Irregular
Narrow and lance shape

Thorns

Season

Plant Season

Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter

Growing Conditions

Sunlight

Full Sun, Partial Sun
Full Sun, Partial Sun

Growth Rate

Slow
Slow

Type of Soil

-
Loam, Sand

The pH of Soil

-
Acidic, Neutral

Soil Drainage

-
Well drained

Bloom Time

Spring
Late Spring, Early Summer

Repeat Bloomer

Tolerances

Drought
Drought

Care

Where to Plant?

Ground
Ground

How to Plant?

Seedlings
Seedlings

Plant Maintenance

Medium
Medium

Watering Plants

Watering Requirements

Average Water Needs
Needs less watering, Requires regular watering, Water occasionally

In Summer

Lots of watering
Lots of watering

In Spring

Moderate
Moderate

In Winter

Average Water
Average Water

Soil

Soil pH

-
Acidic, Neutral

Soil Type

-
Loam, Sand

Soil Drainage Capacity

-
Well drained

Sun Exposure

Full Sun, Partial Sun
Full Sun, Partial Sun

Pruning

Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts
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

Drought
Drought

Facts

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

-
Glossy

Evergreen

Invasive

Self-Sowing

Attracts

Birds
Hummingbirds, Butterflies

Allergy

Pollen
Asthma, Pollen

Benefits

Uses

Aesthetic Uses

Borders
Cottage Garden, Showy Purposes

Beauty Benefits

-
-

Edible Uses

Environmental Uses

Air purification, Shadow Tree, soil erosion prevension on hill slopes, Wildlife, Windbreak
Air purification, Wildlife

Plant Benefits

Medicinal Uses

Astringent, Diarrhea, Dysentry, Haemorrhages, Poultice, Sore Eyes, Sore throat
Recovering internal injuries, Wounds

Part of Plant Used

Leaves, Seeds, Wood
Flowers

Other Uses

Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
Container, Used as Ornamental plant, Veterinarian uses

Used As Indoor Plant

Used As Outdoor Plant

Garden Design

Feature Plant, Shade Trees, Street Trees
Alpine, Container, Mixed Border, Rock Garden / Wall, Wildflower

Scientific Name

Botanical Name

QUERCUS douglasii
PENSTEMON fruticosus 'Purple Haze'

Common Name

Blue Oak
Bush Penstemon, Shrubby Penstemon

In Hindi

Blue Oak Tree
Bush Penstemon

In German

Blaue Eiche
Bush Penstemon

In French

Bleu Oak Tree
Bush Penstemon

In Spanish

Azul del árbol de roble
Bush Penstemon

In Greek

Μπλε Oak Tree
Μπους Penstemon

In Portuguese

Carvalho azul
Bush, Penstemon

In Polish

Niebieski Oak Tree
Bush Penstemon

In Latin

Blue quercum ligno
Persicaria Bush

Classification

Kingdom

Plantae
Plantae

Phylum

Magnoliophyta
Magnoliophyta

Class

Magnoliopsida
Magnoliopsida

Order

Fagales
Scrophulariales

Family

Fagaceae
Scrophulariaceae

Genus

Quercus
Penstemon

Clade

Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots

Tribe

-
-

Subfamily

-
-

Number of Species

20250
1 27800
👆🏻

Difference Between Blue Oak and Bush Penstemon

If you are confused whether Blue Oak or Bush Penstemon are same, here are some features about those plants to help you choose better. Many people think that these two plants have the same characteristics, but one can see Blue Oak and Bush Penstemon Information and learn more about it. Fertilizers required for proper growth of Blue Oak are All-Purpose Liquid Fertilizer, whereas for Bush Penstemon fertilizers required are All-Purpose Liquid Fertilizer. Hence, one should know the basic difference between Blue Oak and Bush Penstemon if you are planning to have them in your garden to enhance its beauty.

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Importance of Blue Oak and Bush Penstemon

Want to have the most appropriate plant for your garden? You might want to know the importance of Blue Oak and Bush Penstemon. Basically, these two plants vary in many aspects. Compare Blue Oak and Bush Penstemon as they differ in many characteristics such as their life, care, benefits, facts, etc. Every gardener must at least have the slightest clue about the plants he wants to plant in his garden. Compare their benefits, which differ in many ways like facts and uses. The medicinal use of Blue Oak is Astringent, Diarrhea, Dysentry, Haemorrhages, Poultice, Sore Eyes and Sore throat whereas of Bush Penstemon is Recovering internal injuries and Wounds. Blue Oak has beauty benefits as follows: while Bush Penstemon has beauty benefits as follows: .

Compare Facts of Blue Oak vs Bush Penstemon

How to choose the best garden plant for your garden depending upon its facts? Here garden plant comparison will help you to solve this query. Compare the facts of Blue Oak vs Bush Penstemon and know which one to choose. As garden plants have benefits and other uses, allergy is also a major drawback of plants for some people. Allergic reactions of Blue Oak are Pollen whereas of Bush Penstemon have Asthma and Pollen respectively. Having a fruit bearing plant in your garden can be a plus point of your garden. Blue Oak has showy fruits and Bush Penstemon has no showy fruits. Also Blue Oak is not flowering and Bush Penstemon is not flowering . You can compare Blue Oak and Bush Penstemon facts and facts of other plants too.