Blue Flax (Linum perenne)

Common names:
Give a thumbs up Blue Flax
Give a thumbs up Perennial Flax

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
Dry Mesic
Minimum cold hardiness: Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Maximum recommended zone: Zone 9b
Plant Height: 18-24 inches
Plant Spread: 12-16 inches
Flowers: Showy
Flower Color: Blue
Bloom Size: 1"-2"
Flower Time: Late spring or early summer
Late summer or early fall
Uses: Medicinal Herb
Resistances: Drought tolerant
Propagation: Seeds: Depth to plant seed: cover the seeds thin
Suitable for wintersowing
Sow in situ
Start indoors
Can handle transplanting
Pollinators: Flies
Containers: Suitable in 3 gallon or larger


Garden Tours: mcash70Garden Tours: mcash70
By Sharon on April 22, 2012

Come with us now as we travel to Canada to view the gorgeous gardens of Margaret, (mcash70). Short growing seasons and long cold winters don't seem to mar the beauty of her landscape. Be sure to click on the images to enlarge them. You are going to love what you see!

(Full article63 comments)
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Posted by BookerC1 (Mackinaw, IL - Zone 5a) on Nov 8, 2011 6:25 PM

I grow flax at the base of my clematis trellis, to provide shade for the clematis roots. It blooms prolifically, and reblooms repeatedly if I deadhead it. The foliage is lacy and attractive, and the seeds are easy to harvest. I suggest putting a cup or bowl beneath the seed pods and clipping off the stems, as the paper pods tend to shatter at the lightest touch. Good candidate for winter sowing and direct seeding.

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Posted by Zencat (West Valley City, Utah - Zone 7a) on May 14, 2013 8:47 AM

My clump gets bigger every year.

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Plant Events from our members
piksihk On March 8, 2019 Seeds sown
piksihk On January 9, 2019 Seeds sown
WG front beds
piksihk On March 16, 2017 Seeds sown
2009 seeds
KelliW On March 8, 2019 Seeds sown
#49, winter sown
gochna On February 15, 2020 Seeds sown
Continued bloom of the flax flower is assured if conditions are right, due to self-seeding of this plant. A single planting in early spring provides an abundance of flax flowers in late spring and summer, but re-seeding by this plant assures a continued mass of growing flax in the meadow or natural area.
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Discussion Threads about this plant
Thread Title Last Reply Replies
Linum 'Blue Sapphire' same as 'Sapphire' ? by Bonehead Jun 30, 2019 4:27 PM 2
Unknown #2 by papab Jul 18, 2018 10:25 AM 11
What Perennials are you ordering 2018? by ge1836 Sep 17, 2018 3:23 PM 63
What's Blooming - Photos and Chat. by NJBob Dec 2, 2020 2:17 PM 2,845
Backyard wildflowers by Jon777 Aug 8, 2016 4:25 PM 84
2016 winter sowing by jvdubb Aug 10, 2016 2:41 PM 166
Unknown pale blue-purple flower by mes Dec 13, 2015 7:00 PM 4
What did you do in the Iris garden today? by Paul2032 Nov 30, 2020 8:13 AM 19,608
Wildflower ID by lovemyhouse Feb 2, 2015 6:55 PM 33
Irises in the mixed garden- combos, companion plants, design ideas, culture by gemini_sage Sep 30, 2016 12:55 PM 354

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