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Red Alder
Red Alder

Rockrose
Rockrose



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Red Alder
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Rockrose

Compare Red Alder and Rockrose

What is

Life Span

Perennial
Perennial

Type

Tree
Broadleaf Evergreen

Origin

North America, United States, Northwestern United States, Alaska, California, Canada
-

Types

-
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle

Number of Varieties

30100
0 40000
👆🏻

Habitat

Lowland evergreen rainforest
Forest edges, Hillside, Woods

USDA Hardiness Zone

4-78-10
0 99
👆🏻

AHS Heat Zone

7-1
-

Sunset Zone

3a, 3b, 4, 5, 6, 7, 14, 15, 16, 17
21,22

Habit

Pyramidal
Spreading

Information

Plant Size

Minimum Height

1,370.00 cm63.50 cm
0 3900
👆🏻

Minimum Width

610.00 cm135.00 cm
0 6350
👆🏻

Plant Color

Flower Color

Yellow, Red, Coral
Magenta

Flower Color Modifier

Bicolor
Bicolor

Fruit Color

Brown
-

Leaf Color in Spring

Green, Dark Green
Green, Gray Green

Leaf Color in Summer

Dark Green
Green, Gray Green

Leaf Color in Fall

Dark Green
Green, Gray Green

Leaf Color in Winter

-
Green, Gray Green

Shape

Leaf Shape

Ovate
Oblovate

Thorns

Season

Plant Season

Spring, Summer, Fall
Spring, Summer

Growing Conditions

Sunlight

Full Sun, Partial Sun, Partial shade
Full Sun

Growth Rate

Fast
Medium

Type of Soil

Loam, Sand
Loam, Sand

The pH of Soil

Acidic, Neutral, Alkaline
Acidic, Neutral, Alkaline

Soil Drainage

Average
Well drained

Bloom Time

Early Spring
Spring, Late Spring, Early Summer

Repeat Bloomer

Tolerances

Maritime exposure, Salt water
Drought

Care

Where to Plant?

Ground
Container, Ground

How to Plant?

Layering, Seedlings
Seedlings, Stem Planting

Plant Maintenance

Medium
Medium

Watering Plants

Watering Requirements

Average Water Needs
-

In Summer

Lots of watering
Drought Tolerant

In Spring

Moderate
Moderate

In Winter

Average Water
Average Water

Soil

Soil pH

Acidic, Neutral, Alkaline
Acidic, Neutral, Alkaline

Soil Type

Loam, Sand
Loam, Sand

Soil Drainage Capacity

Average
Well drained

Sun Exposure

Full Sun, Partial Sun, Partial shade
Full Sun

Pruning

Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves

Fertilizers

All-Purpose Liquid Fertilizer, Nitrogen
All-Purpose Liquid Fertilizer

Pests and Diseases

-
Red blotch

Plant Tolerance

Maritime exposure, Salt water
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
Medium

Foliage Sheen

Glossy
Matte

Evergreen

Invasive

Self-Sowing

Attracts

Insects
Bees, Flies

Allergy

-
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting

Benefits

Uses

Aesthetic Uses

-
-

Beauty Benefits

Skin Problems
-

Edible Uses

Environmental Uses

Air purification, Prevent Soil Erosion, Shadow Tree
Air purification

Plant Benefits

Medicinal Uses

Anodyne, Appetizer, Astringent
Fever, Kidney problems, Urinary tract problems

Part of Plant Used

Flowers, Inner Bark, Sap
Flowers, Root

Other Uses

Used as a dye, used for making charcoal, Used for making informal hedge
-

Used As Indoor Plant

Used As Outdoor Plant

Garden Design

Screening / Wind Break, Shade Trees
Container, Foundation, Mixed Border, Rock Garden, Wall

Scientific Name

Botanical Name

ALNUS rubra
CISTUS x pulverulentus

Common Name

Oregon Alder, Red Alder
Rockrose

In Hindi

red alder
Hydrangea

In German

rot-Erle
Hortensie

In French

aulne rouge
Hortensia

In Spanish

aliso rojo
Hortensia

In Greek

κόκκινη σκλήθρα
υδραγεία

In Portuguese

amieiro vermelho
Hortênsia

In Polish

czerwony olcha
Hortensja

In Latin

red alnus
Hibiscus

Classification

Kingdom

Plantae
Plantae

Phylum

Magnoliophyta
-

Class

Magnoliopsida
-

Order

Fagales
-

Family

Betulaceae
Cistaceae

Genus

Alnus
-

Clade

Angiosperms, Eudicots, Rosids
-

Tribe

-
-

Subfamily

-
-

Number of Species

3520
1 27800
👆🏻

Difference Between Red Alder and Rockrose

If you are confused whether Red Alder or Rockrose 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 Red Alder and Rockrose Information and learn more about it. Fertilizers required for proper growth of Red Alder are All-Purpose Liquid Fertilizer and Nitrogen, whereas for Rockrose fertilizers required are All-Purpose Liquid Fertilizer. Hence, one should know the basic difference between Red Alder and Rockrose if you are planning to have them in your garden to enhance its beauty.

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Importance of Red Alder and Rockrose

Want to have the most appropriate plant for your garden? You might want to know the importance of Red Alder and Rockrose. Basically, these two plants vary in many aspects. Compare Red Alder and Rockrose 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 Red Alder is Anodyne, Appetizer and Astringent whereas of Rockrose is Fever, Kidney problems and Urinary tract problems. Red Alder has beauty benefits as follows: Skin Problems while Rockrose has beauty benefits as follows: Skin Problems.

Compare Facts of Red Alder vs Rockrose

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 Red Alder vs Rockrose 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 Red Alder are whereas of Rockrose have Chest tightness, Diarrhea, Dizziness, Nausea and Vomiting respectively. Having a fruit bearing plant in your garden can be a plus point of your garden. Red Alder has showy fruits and Rockrose has no showy fruits. Also Red Alder is not flowering and Rockrose is not flowering . You can compare Red Alder and Rockrose facts and facts of other plants too.