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Linum perenne Blau Saphir - seeds

Linum perenne Saphir bleu
Perennial Flax, Blue Flax

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Small, perennial variety of flax which forms a bushy clump of 30 cm in all directions. It flowers from June to September in clusters of ephemeral, beautiful sky-blue flowers above very fine, slightly bluish-green foliage. The perennial linum appreciates the sun and light, rocky, even dry soil. Sow it in spring in sunny flower beds or rockeries, it brings a rustic touch to any theme.
Flower size
3 cm
Height at maturity
30 cm
Exposure
Sun
Annual / Perennial
Perennial
Germination time (days)
20 days
Sowing method
Direct sowing, Sowing under cover
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Sowing period March to April
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Flowering time June to September
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Description

Linum perenne 'Blau Saphir' is a small selection of perennial flax, just as graceful and floriferous as the wild form. It forms a small, airy clump with countless ephemeral, beautiful sky blue flowers. They renew themselves for two to three months, offering a constantly renewed and swirling sight. Perennial flax thrives in the sun, in light, rocky and even dry soils. Sow it directly in sunny flower beds in spring.

Blue perennial flax (Linum perenne) is native to Siberia, Europe, and temperate Asia, belonging to the linaceae family. 'Sapphire' is a dwarf form of this species. It is a small, hardy perennial plant with a short lifespan but rapid growth. It forms a cluster of delicate stems adorned with glaucous, evergreen foliage, composed of very fine leaves. When in bloom, 'Sapphire' flax forms small bushy clumps about 30 cm in all directions. The flowering period extends from June-July to September, in the form of clusters of five-petaled, pale blue, satiny flowers, veined with darker blue. This plant is often grown as a biennial and self-seeds abundantly in light, sandy, or rocky soil.

Flax is unrivalled, along with love-in-a-mist, for lightening up flower beds and adding a touch of natural beauty to sophisticated scenes. They suffer from somewhat precarious health, which often makes them disappear after a few years, but they naturalise easily. Sow perennial flax generously in rock gardens, meadows, borders, flower beds, or light soil. When sown among German irises, perennial flax lightens 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 perennials with grey foliage.

Linum perenne Blau Saphir - seeds in pictures

Linum perenne Blau Saphir - seeds (Flowering) Flowering

Flowering

Flower colour blue
Flowering time June to September
Flower size 3 cm
Bee-friendly Attracts pollinators

Foliage

Foliage persistence Evergreen
Foliage colour green

Plant habit

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

Botanical data

Genus

Linum

Species

perenne

Cultivar

Saphir bleu

Family

Linaceae

Other common names

Perennial Flax, Blue Flax

Origin

Cultivar or hybrid

Product reference211310

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Planting and care

Sow the flax seeds outdoors where they are to flower in March-April. Choose a sunny location on well-drained, properly prepared and loosened soil. Sow the seeds finely, at a depth of 3 mm, with a spacing of 30 cm between furrows. Water regularly, especially during dry periods. Germination usually takes about twenty days. When the plants are large enough to handle, transplant them 15 cm apart.

Another option is to sow indoors from August to September for flowering in early summer the following year. Sow the flax on the surface of good quality compost at a temperature of 18-23°C, and cover with a pinch of very fine compost or vermiculite. Keep the sowing in the light, as this facilitates germination. When the seedlings are large enough to be moved, transplant and grow on a frost-free place until the young plants are large enough to be moved outdoors. You can keep these plants in a frost-free room before planting them in the ground or pots the following spring.

Flax plants thrive in light, well-drained, even poor soil, in full sun. They can even grow in compacted or very clayey soil. For a beautiful mass effect, plant in groups of at least ten plants.

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Sowing period

Sowing period March to April
Sowing method Direct sowing, Sowing under cover
Germination time (days) 20 days

Intended location

Suitable for Meadow, Rockery
Type of use Border, Edge of border, Container, Slope
Hardiness Hardy down to -15°C (USDA zone 7b) Show map
Ease of cultivation Beginner
Exposure Sun
Soil pH Any
Soil moisture Dry soil, Moist soil, well-draining, rocky or sandy

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