Linum Species, Blue Flax, Perennial Flax

Linum perenne

Genus
Linum (LIN-um)
Species
perenne (per-EN-ee)
Synonym
Sun Exposure
Full Sun
Foliage
Herbaceous
Height
18-24 in. (45-60 cm)
Spacing
12-15 in. (30-38 cm)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
Danger
All parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction
Bloom Color
Dark Blue
Bloom Time
Late Spring/Early Summer
Mid Summer
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
From seed; sow indoors before last frost
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Cullman, Alabama(2 reports)

Midland City, Alabama

Citrus Heights, California

JACUMBA, California

Merced, California

San Jose, California

Stockton, California

Susanville, California

Yucca Valley, California

Aurora, Colorado

Colorado Springs, Colorado(3 reports)

Cotopaxi, Colorado

Dacono, Colorado

Denver, Colorado

Fort Collins, Colorado(2 reports)

Pueblo, Colorado

Winsted, Connecticut

Jacksonville, Florida

Keystone Heights, Florida

Tennille, Georgia

Boise, Idaho

Itasca, Illinois

Mount Prospect, Illinois

Oswego, Illinois

Greenville, Indiana

Des Moines, Iowa

Indianola, Iowa

Brookville, Kansas

Takoma Park, Maryland

Beverly, Massachusetts

Provincetown, Massachusetts

Southborough, Massachusetts

Wellesley, Massachusetts

Adrian, Michigan

Galesburg, Michigan

Lansing, Michigan

Niles, Michigan

Pinconning, Michigan

Minneapolis, Minnesota

Aurora, Missouri

Piedmont, Missouri

Ennis, Montana

Lewistown, Montana

Lincoln, Nebraska

Sparks, Nevada

Litchfield, New Hampshire

Albuquerque, New Mexico

Rio Rancho, New Mexico

Santa Fe, New Mexico

Crown Point, New York

Wappingers Falls, New York

Clemmons, North Carolina

Polkton, North Carolina

Raleigh, North Carolina

Belfield, North Dakota

Fort Jennings, Ohio

Geneva, Ohio

Red Rock, Ontario

Bend, Oregon

Cave Junction, Oregon

Klamath Falls, Oregon

North Plains, Oregon

Lancaster, Pennsylvania

Aberdeen, South Dakota

Sturgis, South Dakota

Clarksville, Tennessee

Murfreesboro, Tennessee

Austin, Texas

Hereford, Texas

Valentine, Texas

Ogden, Utah

Vernal, Utah

Kalama, Washington

Sumas, Washington

Madison, Wisconsin

Medford, Wisconsin

Mukwonago, Wisconsin

Omro, Wisconsin

River Falls, Wisconsin

Kinnear, Wyoming

show all

Featured Videos

Gardener's Notes:

20
positives
3
neutrals
0
negative
Sort By:
Sort By:
M
Flat Rock, MI (Zone 6a) | September 2015 | positive

When I lived in Greenbush, MI, I had planted some wildflower seeds and it was the first time I had ever seen Blue Flax. This was in 2010...Read More

P
P
Mukwonago, WI | July 2014 | positive

I love this little plant, almost lost it in one garden when the columbine smothered it, replanted in my lily garden and it is perfect, I ...Read More

D
D
Cullman, AL (Zone 7a) | May 2013 | positive

This beautiful blue beauty surprised me last year apparently appearing from one of those "mixed wildflower" packet of seed I picked up on...Read More

M
| June 2012 | positive

Linum Perenne (Blue Flax) is one of the most beautiful flowers one can have in the garden. One difficulty with Blue Flax is that is very ...Read More

M
Vernal, UT | August 2010 | positive

I first moved to Vernal, Utah 5 years ago and found to my delight that I had small blue flowers that bloomed all summer. I did my researc...Read More

M
Bozeman, MT | June 2010 | positive

We have wild blue flax all over our property. Not sure where it came from, but we did not plant it. We live at 6000 ft. above sea level...Read More

M
Adrian, MI | May 2010 | positive

I have this plant blooming with the orange siberian wallflower--beautiful! I sowed the seeds last year; it is blooming this year. For an ...Read More

L
Portland, OR (Zone 8b) | March 2010 | neutral

I planted blue flax last spring from seed, and luckily interplanted it with other things! It was slow to come up and absolutely ephemeral...Read More

J
Rio Rancho, NM | May 2009 | positive

We put this in a sunny, rather dry spot. It didn't do much last year when we planted it, but it is already flowering this year. Not som...Read More

R
Madison, WI (Zone 5a) | January 2009 | positive

This plant has the most lovely ferny foliage that looked great all season, into fall. It did not flower profusely for me, but the flowers...Read More

T
Hilliard, OH (Zone 6b) | December 2008 | positive

when i was 12, my mother bought a bag of raw flax seed to eat. i "stole" some of the seeds, potted them in a cup, and placed a cd on top ...Read More

A
| May 2008 | positive

A beautiful flower which comes in the spring year after year. The stems are too weak to resist the wind and rain, so some lower plants sh...Read More

M
Winsted, CT | April 2008 | neutral

quite a invasive plant, and overseeds onto the lawn very easily. the flowers are nice but kind of on the small side and the foilage kinda...Read More

K
Albuquerque, NM (Zone 7a) | May 2007 | positive

This blue flax has become one of my favorites. It started blooming in early Spring and I love the way the sky-blue flowers shimmer in th...Read More

B
Provincetown, MA | June 2006 | positive

One of the loveliest things about this plant is that the blooms, which last a day, shed and leave "blue snow" scattered beneath them. Al...Read More

J
J
Belfield, ND (Zone 4a) | June 2005 | positive

This plant has been growing in my gardens for years, and it tends to be a bit on the invasive side. However, the excess plants are easil...Read More

N
Sparks, NV (Zone 7a) | May 2005 | positive

This plant did extremely well for me until this year, when the cats decided that it was one of their favorite napping spots (as in right ...Read More

V
| May 2005 | positive

We live in a rather dry zone 3 city (Edmonton, Canada) and blue flax grows very well here. It is a delicate, very well behaved plant - no...Read More

L
Ogden, UT (Zone 5b) | January 2005 | positive

Blue flax has lacy, blue-green foliage and sky blue flowers in early summer. It's a drought-tolerant perennial, looking especially nice ...Read More

T
T
Murfreesboro, TN (Zone 7a) | January 2003 | positive

Flax seed and oil is a healthy addition to the diet, and the plant fiber is the raw material in linen cloth.

Flax is a com...Read More

E
E
(Zone 4b) | June 2002 | positive

Very pretty perennial plant with gorgeous sky blue flowers :)

R
| May 2002 | positive

Beautiful flowers, good addition to any perennial garden. Blooms first in the late spring and off and on throughout the summer.
<...Read More

G
Wentworth, SD (Zone 4a) | March 2001 | neutral

Days to germination: 20-25. All-blue, satiny flowers. Cut back after flowering to promote more blooms.

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