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Blue Flax
Also known as: Lint
Blue Flax is a herbaceous perennial originally native to Europe. It blooms profusely over two to three months starting in late spring. Oil can be extracted from the seeds, though blue Flax produces less than half as many seeds as its annual relatives. Linen can be made from the stems.
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Toxic to Humans
Toxicity
Herb
Plant Type
Spring, Summer, Fall
Bloom Time
60 cm
Plant Height
30 cm to 45 cm
Spread
Green, Gray, Silver
Leaf Color
2 cm to 2.5 cm
Flower Size
Blue, White
Flower Color
Gray, Silver
Stem Color
Deciduous
Leaf type
5 - 35 ℃
Ideal Temperature

Images of Blue Flax

Distribution of Blue Flax

Distribution Map
Blue Flax is a perennial plant that naturally thrives in temperate and subtropical regions. Though native to the Eurasian landmass, it has been introduced and now proliferates in various parts of North America and northern Europe. The cultivation of blue Flax extends beyond its indigenous range, taking advantage of the plant's adaptability to diverse climates.
Native
Cultivated
Invasive
Introduced
No species reported
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Habitat
Grassland
Hemisphere Trend Curve

Culture

Garden Use
When grown in large groups, the flowering blue Flax creates a beautiful mat of decorative blooms and foliage during the spring and summer. It thrives in well-draining soils and tolerates drought, meaning it's perfect for rock or cottage gardens. Groups of the flowers form ornamental borders and fill garden beds, but smaller groups can grow in pots on outdoor patios.
Symbolism
Money, Protection, Beauty
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Toxicity

Blue Flax causes severe or fatal poisoning through linamarin, which releases toxic hydrogen cyanide. The entire plant, especially seeds and seedling tops, is toxic. Dogs, cats, and people experience gastrointestinal issues, neurological symptoms, and potentially death. Immediate veterinary care is crucial if ingestion occurs to ensure the affected animal’s best outcome.
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Quickly Identify Blue Flax

1
Vivid blue flowers with delicate petals blooming in summer.
2
Slender stem reaching 18 to 30 inches (45 to 75 cm) in height.
3
Narrow, lance-shaped leaves contributing to graceful appearance.
4
Perennial requiring well-drained soil, prone to sparseness if not pruned.
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Care Guide for Blue Flax

Every week
Water
Full sun
Sunlight
5 - 35 ℃
Ideal Temperature
Garden Soil
Soil Type
Water: Blue Flax thrives in temperate conditions, preferring consistent moisture without excess. Drought-tolerant, it benefits from weekly watering, maintaining lightly moist soil. As a perennial, it efficiently uses water during the growing season, resilient to variable rainfall, and showcases delicate blue flowers.
Fertilize: For blue Flax, use a balanced fertilizer, emphasizing high phosphorus during bloom. Fertilize lightly in spring every 4-6 weeks until midsummer, adapting for seasonal growth changes. Mix with water for even distribution. Beginners should start with half-strength to avoid burn, adjusting as needed.
Pruning: Blue Flax features delicate blue flowers and tall stems. Prune in early spring, cutting back to half, and deadhead spent blooms to promote continuous flowering. Regular maintenance enhances blooming, controls size, and prevents legginess, ensuring vigorous growth and an attractive display.
Propagation: Blue Flax is a perennial herb with delicate blue flowers, preferring well-drained soil and full sun. For optimal germination, lightly press seeds into the surface without covering them, requiring light and consistent moisture. Once established, it can reseed itself, becoming a long-lasting garden addition.
Repotting: Repot blue Flax every 2-3 years in spring to promote growth, using a medium-sized, well-draining pot. Water sparingly after repotting, as overwatering can be harmful. Provide bright, indirect light and avoid oversized pots to maintain a snug fit for optimal health.
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