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Linum perenne - Perennial Flax

Linum perenne
Perennial Flax, Blue Flax, Lint Bells, Prairie flax

4,3/5
22 reviews
4 reviews
3 reviews
2 reviews
2 reviews

Plantlings received in very good condition, they have taken off very well! They withstand the summer heat...

Corinne, 18/07/2023

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This plant carries a 12 months recovery warranty

More information

This perennial flax produces clusters of ephemeral sky-blue flowers, visited by butterflies, which succeed one another uninterruptedly throughout the summer. The plant forms a small clump of slender stems bearing tiny narrow glaucous leaves, which are evergreen in winter. Very hardy, resistant to drought and sea spray, this flax fits into any flower bed!
Flower size
3 cm
Height at maturity
50 cm
Spread at maturity
30 cm
Exposure
Sun
Hardiness
Hardy down to -29°C
Soil moisture
Dry soil
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Best planting time March, October
Recommended planting time March to April, September to November
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Flowering time June to September
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Description

Linum perenne, also known as perennial blue flax, is a small and elegant plant, forming a cluster of thin and flexible stems. Its long flowering, as light as it is ephemeral, offers an abundance of small single flowers, with a satin-like light blue colour, seeming to flutter in the air. Each flower often lives no more than a day, but they tirelessly renew themselves above a very fine foliage of a slightly bluish green colour. The perennial flax appreciates the sun, light and rocky soils, even dry ones. Plant it in sunny flower beds or rockeries, it will bring a lovely rustic touch to any garden.

 

The blue perennial flax is a plant native to Siberia, Europe, and temperate Asia, belonging to the Linaceae family. It is a small hardy perennial plant, with a short lifespan, forming a cluster of delicate stems adorned with persistent green-blue foliage, composed of very fine leaves. When in bloom, the blue flax forms small bushy clumps, 50 cm (20in) in height and 20 cm (8in) in width. The flowering period extends, depending on the region, from May to June (in hot and dry climates) or from July to September, in the form of displays of five-petalled funnel-shaped flowers, pale blue finely veined with darker blue, with a satin-like texture. This plant, often cultivated as a biennial, self-seeds abundantly in light, sandy, or rocky soil.

 

Perennial flax, just like cornflowers, are unrivaled in lightening up flower beds and adding a natural touch to sophisticated scenes. They suffer from a somewhat precarious health, which often makes them disappear within a few years, but they naturalise easily. Plant perennial flax without moderation in rockeries, meadows, borders, flower beds, or light soil. In the midst of Iris germanica, the perennial flax lightens up the sword-shaped foliage, fills the space between the stems, and takes over once their flowering is finished. It also performs well in pots. Its elegance pairs well with plants with grey foliage such as Senecio cineraria, artemisias, lavenders, and Californian poppies, which require the same growing conditions. Like perennial geraniumsblue flax is a lovely companion for peonies and old-fashioned roses.

Linum perenne - Perennial Flax in pictures

Linum perenne - Perennial Flax (Flowering) Flowering
Linum perenne - Perennial Flax (Foliage) Foliage

Flowering

Flower colour blue
Flowering time June to September
Flower size 3 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Evergreen
Foliage colour green

Plant habit

Height at maturity 50 cm
Spread at maturity 30 cm
Growth rate fast

Botanical data

Genus

Linum

Species

perenne

Family

Linaceae

Other common names

Perennial Flax, Blue Flax, Lint Bells, Prairie flax

Origin

Russia

Planting and care

Linum perenne thrives in the sun and in sunny positions. It tolerates sea spray. Plant it in a damp, light and well-drained soil. It is sensitive to waterlogging, which is why it is necessary to have a dry soil in winter. Heavy and wet soils are not appreciated. When planting, space the Linums 15-20 cm (6-8in) apart. For a mass effect, it is advisable to plant them in clumps of about ten plants. Cut back the clump to 10 cm (4in) from the ground at the end of flowering to promote new shoots.

Planting period

Best planting time March, October
Recommended planting time March to April, September to November

Intended location

Suitable for Meadow, Rockery
Type of use Edge of border, Container
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Amateur
Planting density 3 per m2
Exposure Sun
Soil pH Any
Soil type Chalky (poor, alkaline and well-drained), Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Dry soil, Well-drained

Care

Pruning instructions Cut back the clump to 10 cm (4in) from the ground as soon as the flowering is over to promote new shoots.
Pruning Pruning recommended once a year
Pruning time September
Disease resistance Very good
Overwinter Can be left in the ground
4,3/5

Summer flowering perennials

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