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)
Sun Exposure: Full Sun
Danger: All parts of plant are poisonous if ingested Handling plant may cause skin irritation or allergic reaction
Bloom Color: Medium Blue
Bloom Time: Late Spring/Early Summer Mid Summer
Other details: Average Water Needs; Water regularly; do not overwater
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
On Jun 10, 2012, marketgate from crail United Kingdom wrote:
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 hard to propagate via split or transplant. Yet, well worth it to have in one's garden. There is nothing like it. You will never tire of going down to the garden to see it.
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 research and found them to be Blue Flax. I have collected the seeds and have many more plants to enjoy. Vernal is 5,540 feet in elevation and has very little rain during the Summer and Winters can be quite harsh but these lovely flowers return every Spring.
On Jun 15, 2010, Max_Bucks from Bozeman, MT wrote:
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 in a semi-arid valley, with about 11 inches of rain a year. Temperatures range from -30 F to +90 F.
This is an extraordinary plant anyway you look at it! The flower petals are an exquisite pale blue. The center of the flower has a little yellow-orange dot. The entire flower assembly rotates hour by hour to face the sun, then all the flowers fall off at sunset. Yes, true! The ground is covered with pale blue confetti. And the next morning, the whole process starts again. It is totally amazing to watch hundreds of these flowers bloom, rotate in unison, and then fall to the ground.
These are hardy, nearly indestructible plants that need no maintenance. They will propagate themselves slowly over time. They are great in dry climates and really add something to an open field or other large area that has been abandoned to nature.
On Mar 25, 2010, lehua_mc from Portland, OR (Zone 8b) wrote:
I planted blue flax last spring from seed, and luckily interplanted it with other things! It was slow to come up and absolutely ephemeral once above ground, mere wisps of stems with almost needle like (scale not texture) foliage. I'm looking forward to a perhaps more established show this year. A small field of these blue flowers sounds like a dream to me.
On May 10, 2009, jeff0452 from Rio Rancho, NM wrote:
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 something to plant for big foliage, but the flowers are pretty. May need protection against rabbits (we had trouble with this once). Has not self-seeded for us yet, but a friend in our neighborhood reports that it does.
On Dec 8, 2008, tropicsofohio from Hilliard, OH (Zone 6b) wrote:
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 of them and quickly forgot about it. 3 days later they had germenated, and had actually shoved the cd off of them. weeks later, they had healthy new growth, and were about 3 inches tall. my mom was very surprized:) i planted them outside, where they grew about a foot tall, until a racoon ( which had rabies) dug them up, and killed them :( ... the racoon was shot by a neighbor. we coouldent take any chances, living in the sub urbs, with many small children around.. the flowers were beautiful though
On May 9, 2008, alvaropstn from Simancas, Valladolid Spain wrote:
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 should be planted around to sustain them. Next season I will plant some alpine dianthus all around.
When in flower they have an oceanlike look. The afternoon sun wilts the flowers but new ones will grow next day. A real favourite very easy to grow.
On Jun 6, 2006, blackbunny from Provincetown, MA wrote:
One of the loveliest things about this plant is that the blooms, which last a day, shed and leave "blue snow" scattered beneath them. Altho they are perennial, I have lost them in especially cold winters, but they seem to reseed sporadically in my Cape Cod garden. I feel that this is an underrated plant, here, at least, as I haven't seen anyone else growing them locally. A lovely, informal blue flower worth trying.
On May 16, 2005, nevadagdn from Sparks, NV (Zone 7a) wrote:
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 in the center of the plant). Not bad for a 10-year-old plant, really--I'll try cutting it back to regenerate it.
On May 16, 2005, VoodooMama from Edmonton Canada wrote:
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 - not spreading all over the place, but popping up reliably every spring. We have it planted in a west-facing garden which gets quite a bit of sun in the spring, but is shady once the trees around it leaf out in the summer. The flax provides background foilage for early bulbs, like daffodils, then blooms & adds some colour with the rest of the summer flowers.
On Mar 17, 2001, gardener_mick from Wentworth, SD (Zone 4a) wrote:
Days to germination: 20-25. All-blue, satiny flowers. Cut back after flowering to promote more blooms.
This plant has been said to grow in the following regions:
, Midland City, Alabama Citrus Heights, California Jacumba, California Merced, California San Jose, California Susanville, California Yucca Valley, California Colorado Springs, Colorado (3 reports) Federal Heights, Colorado Fort Collins, Colorado Pueblo, Colorado Winsted, Connecticut Jacksonville, Florida Keystone Heights, Florida Tennille, Georgia Boise, Idaho Itasca, Illinois Mount Prospect, Illinois Oswego, Illinois Farmersburg, Indiana Galena, Indiana Des Moines, Iowa Indianola, Iowa Brookville, Kansas Takoma Park, Maryland Beverly, Massachusetts Cordaville, Massachusetts Provincetown, Massachusetts Wellesley, Massachusetts Adrian, Michigan Galesburg, Michigan Lansing, Michigan Niles, Michigan Pinconning, Michigan Blaine, Minnesota Piedmont, Missouri Ennis, Montana Lewistown, Montana Lincoln, Nebraska Sparks, Nevada Litchfield, New Hampshire Carnuel, New Mexico Rio Rancho, New Mexico Santa Fe, New Mexico Crown Point, New York Hillside Lake, New York Clemmons, North Carolina Polkton, North Carolina Raleigh, North Carolina Belfield, North Dakota Fort Jennings, Ohio Geneva, Ohio , Ontario Cave Junction, Oregon Klamath Falls, Oregon North Plains, Oregon Salem, Oregon Aberdeen, South Dakota Sturgis, South Dakota Murfreesboro, Tennessee Austin, Texas Hereford, Texas Valentine, Texas Maeser, Utah Kalama, Washington Omro, Wisconsin Shorewood Hills, Wisconsin Johnstown, Wyoming