Life Span
Annual
  
Perennial
  
Type
Perennial
  
Cactus or Succulent
  
Origin
New Zealand
  
North America, Southwestern United States, Mexico
  
Types
Not Available
  
Colville's Barrel Cactus, Long-spined Barrel Cactus, Barrel Cactus
  
Number of Varieties
Not Available
  
Habitat
All sorts of environments
  
limestone outcrops, Rocky areas, Semi desert
  
USDA Hardiness Zone
7-9
  
12-15
  
AHS Heat Zone
9*6
  
12-10
  
Sunset Zone
2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
  
12, 13, 21, 22, 23, 24
  
Habit
Mat-forming
  
Oval or Rounded
  
Plant Size
  
  
Plant Color
  
  
Flower Color
Yellow
  
Yellow, Magenta
  
Flower Color Modifier
Bicolor
  
Not Available
  
Fruit Color
Non Fruiting Plant
  
Pink, Red
  
Leaf Color in Spring
Green, Gray Green, Silver
  
Not Available
  
Leaf Color in Summer
Gray Green, Silver
  
Not Available
  
Leaf Color in Fall
Gray Green, Silver
  
Not Available
  
Leaf Color in Winter
Light Green
  
Not Available
  
Shape
  
  
Leaf Shape
Tiny
  
Not Available
  
Thorns
No
  
Yes
  
Plant Season
Spring, Summer, Fall, Winter
  
Spring, Summer, Fall, Winter
  
Growing Conditions
  
  
Sunlight
Full Sun, Partial Sun, Partial shade
  
Full Sun, Partial Sun
  
Growth Rate
Slow
  
Slow
  
Type of Soil
Loam, Sand
  
Loam, Sand
  
The pH of Soil
Acidic, Neutral, Alkaline
  
Acidic, Neutral, Alkaline
  
Soil Drainage
Well drained
  
Well drained
  
Bloom Time
Summer
  
Spring, Late Spring, Early Summer
  
Repeat Bloomer
No
  
No
  
Tolerances
Drought
  
Drought
  
Where to Plant?
Container, Ground
  
Container, Ground, Pot
  
How to Plant?
Seedlings
  
Seedlings
  
Plant Maintenance
High
  
Medium
  
Watering Plants
  
  
Watering Requirements
Average Water Needs
  
Needs good drainage, Needs very little water, Water carefully
  
In Summer
Drought Tolerant, Average Water
  
Lots of watering
  
In Spring
Alternate Days
  
Moderate
  
In Winter
Moderate
  
Average Water
  
Soil
  
  
Soil pH
Acidic, Neutral, Alkaline
  
Acidic, Neutral, Alkaline
  
Soil Type
Loam, Sand
  
Loam, Sand
  
Soil Drainage Capacity
Well drained
  
Well drained
  
Sun Exposure
Full Sun, Partial Sun, Partial shade
  
Full Sun, Partial Sun
  
Pruning
Requires very little pruning
  
No pruning needed
  
Fertilizers
Not Available
  
All-Purpose Liquid Fertilizer
  
Pests and Diseases
Aphids, Spider mites
  
Red blotch
  
Plant Tolerance
Drought
  
Drought
  
Flowers
Insignificant
  
Yes
  
Flower Petal Number
Single
  
Single
  
Fruits
  
  
Showy Fruit
No
  
No
  
Edible Fruit
No
  
No
  
Fragrance
  
  
Fragrant Flower
No
  
No
  
Fragrant Fruit
No
  
No
  
Fragrant Leaf
No
  
No
  
Fragrant Bark/Stem
No
  
No
  
Showy Foliage
Yes
  
No
  
Showy Bark
No
  
No
  
Foliage Texture
Fine
  
Bold
  
Foliage Sheen
Matte
  
Not Available
  
Evergreen
Yes
  
No
  
Invasive
No
  
No
  
Self-Sowing
No
  
No
  
Attracts
Birds, Butterflies, Hummingbirds
  
Not Available
  
Allergy
no allergic reactions
  
Not Available
  
Uses
  
  
Aesthetic Uses
Bog Garden, Borders
  
Showy Purposes
  
Beauty Benefits
No Beauty Benefits
  
Not Available
  
Edible Uses
No
  
Insignificant
  
Environmental Uses
Not Available
  
Air purification
  
Plant Benefits
  
  
Medicinal Uses
Not Available
  
Not Available
  
Part of Plant Used
Whole plant
  
Flowers
  
Other Uses
Showy Purposes
  
Used as Ornamental plant
  
Used As Indoor Plant
No
  
No
  
Used As Outdoor Plant
Yes
  
Yes
  
Garden Design
Alpine, Container, Rock Garden / Wall
  
Container, Houseplant, Rock Garden, Wall
  
Botanical Name
Raoulia glabra
  
ECHINOCACTUS horizonthalonius
  
Common Name
Raoulia
  
Devilshead, Turk's head cactus, Blue barrel cactus, Eagle's claw, Horse maimer, Horse crippler, Visnaga meloncillo
  
In Hindi
Raoulia
  
Blue barrel cactus
  
In German
Raoulia
  
Blau Faßkaktus
  
In French
Raoulia
  
Bleu barrel cactus
  
In Spanish
Raoulia
  
biznaga Azul
  
In Greek
Raoulia
  
Μπλε βαρέλι κάκτος
  
In Portuguese
raoulia
  
cacto de tambor azul
  
In Polish
Raoulia
  
Niebieski baryłkę kaktus
  
In Latin
Raoulia
  
Blue Cactus
  
Kingdom
Plantae
  
Plantae
  
Phylum
Tracheophyta
  
Magnoliophyta
  
Class
Magnoliopsida
  
Magnoliopsida
  
Order
Asterales
  
Caryophyllales
  
Family
Asteraceae
  
Cactaceae
  
Genus
Raoulia
  
Echinocactus
  
Clade
Angiosperms, Asterids, Eudicots
  
Angiosperms, Core eudicots, Eudicots
  
Tribe
Gnaphalieae
  
Cacteae
  
Subfamily
Not Available
  
Cactaceae
  
Number of Species
Not Available
  
Season and Care of Raoulia and Blue Barrel
Season and care of Raoulia and Blue Barrel is important to know. While considering everything about Raoulia and Blue Barrel Care, growing season is an essential factor. Raoulia season is Spring, Summer, Fall and Winter and Blue Barrel season is Spring, Summer, Fall and Winter. The type of soil for Raoulia is Loam, Sand and for Blue Barrel is Loam, Sand while the PH of soil for Raoulia is Acidic, Neutral, Alkaline and for Blue Barrel is Acidic, Neutral, Alkaline.
Raoulia and Blue Barrel Physical Information
Raoulia and Blue Barrel physical information is very important for comparison. Raoulia height is 2.50 cm and width 25.40 cm whereas Blue Barrel height is 40.00 cm and width 13.00 cm. The color specification of Raoulia and Blue Barrel are as follows:
Raoulia flower color: Yellow
Raoulia leaf color: Green, Gray Green and Silver
Blue Barrel flower color: Yellow and Magenta
- Blue Barrel leaf color: Not Available
Care of Raoulia and Blue Barrel
Care of Raoulia and Blue Barrel include pruning, fertilizers, watering etc. Raoulia pruning is done Requires very little pruning and Blue Barrel pruning is done No pruning needed. In summer Raoulia needs Drought Tolerant, Average Water and in winter, it needs Moderate. Whereas, in summer Blue Barrel needs Lots of watering and in winter, it needs Average Water.