Life Span
Annual
Perennial
Type
Perennial
Tree
Origin
Europe, Asia
Europe, Eastern Europe, Southern Europe, Russia/Siberia, Iran, Central Asia, Southern Asia, Western Asia, India, Nepal, China
Types
Winged flax, Bristle flax, Fairy flax
Black walnut
Number of Varieties
430
0
40000
👆🏻
Habitat
Cultivated Beds
Cold Regions, Hills, Hillside
USDA Hardiness Zone
4-84-8
0
99
👆🏻
AHS Heat Zone
9-7
7-1
Sunset Zone
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21
Habit
Clump-Forming
Oval or Rounded
Plant Size
Minimum Height
45.72 cm1,220.00 cm
0
3900
👆🏻
Minimum Width
45.72 cm1,220.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Blue, Sky Blue
Yellow green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Tan
Green, Brown
Leaf Color in Spring
Green, Blue Green
Green, Copper
Leaf Color in Summer
Green, Blue Green
Dark Green
Leaf Color in Fall
Green, Blue Green
Dark Green, Yellow green
Leaf Color in Winter
Light Green
-
Shape
Leaf Shape
Narrow
Pinnate
Thorns
✔
✘
✔
✘
Plant Season
Summer
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun
Growth Rate
Fast
Medium
Type of Soil
Loam, Sand
Clay, Loam, Sand
The pH of Soil
Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Early Summer, Summer
Late Spring, Early Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought, Frost
Where to Plant?
Ground
Ground
How to Plant?
Seedlings
Budding, Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs, Requires watering in the growing season
Requires watering in the growing season, Water Deeply, Water when top layer of soil becomes dry
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
Soil Type
Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun
Pruning
Midseason Pruning, Prune in fall, Remove damaged leaves, Remove dead branches, Remove dead leaves
In Early Autumn, Prune to stimulate growth, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
fertilize in spring, Nitrogen
Pests and Diseases
Red blotch
Anthracnose, Armillaria mellea, Blight, Caterpillars, Crown gall, Crown rot, fungus, Powdery mildew, Red blotch
Plant Tolerance
Drought
Drought, Frost
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
Bees, Butterflies, Flies
-
Allergy
Cyanide poisoning
Severe allergen
Uses
Aesthetic Uses
Showy Purposes
-
Beauty Benefits
Good for skin
Good for skin and hair
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Absorbs greenhouse gases, Absorbs huge amounts of CO2, Air purification, Amazing growth rate, Erosion control, Food for birds, Food for insects, Forms dense stands, Nesting sites for birds, Prevent Soil Erosion, Shadow Tree, Shelter for wildlife, Windbreak
Plant Benefits
Medicinal Uses
Antirheumatic, Carminative, Emollient, Ophthalmic, Poultice, Stomachic
Anemia, Asthma, Cancer, Cough, Diarrhea, Menstrual Disorders, Urinary tract problems
Part of Plant Used
Flowers, Seeds
Fruits, Seeds
Other Uses
Cosmetics, Fibre, For making oil, Used in paper industry
Economic Purpose, Used as a dye, Used as firewood, Used As Food, Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Mixed Border, Rock Garden, Wall, Wildflower
Edible, Feature Plant, Shade Trees
Botanical Name
LINUM perenne
JUGLANS regia
Common Name
Perennial Flax, Blue flax, Alpine flax
English Walnut
In Hindi
Blue Flax Plant
अंग्रेजी अखरोट
In German
Blaue Flachspflanze
Englisch Walnut
In French
Bleu lin Plante
Anglais Noyer
In Spanish
Planta de lino azul
Inglés nuez
In Greek
Μπλε Λίνο Φυτών
Αγγλικά Καρυδιά
In Portuguese
Planta do linho azul
Inglês Walnut
In Polish
Niebieski roślin lnu
orzech włoski
In Latin
Blue linum Planta
Nucis anglicus
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Tracheophyta
Class
Magnoliopsida
Magnoliopsida
Order
Linales
Fagales
Family
Linaceae
Juglandaceae
Genus
Linum
Juglans
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Tribe
-
Juglandeae
Subfamily
-
Juglandoideae
Number of Species
18021
1
27800
👆🏻