Lewis flax (Linum lewisii) is a perennial that will grow from 61 to 91 cm tall and 46 to 61 cm wide. Lewis flax blossoms only last a day but bloom profusely throughout the season. This plant is heat and drought tolerant.
I. Appearance and Characteristics
Linum lewisii (Linum perenne var. lewisii) (Lewis flax, blue flax or prairie flax) is a perennial plant in the family Linaceae. The plant is native to western North America from Alaska south to Baja California, and from the Pacific Coast east to the Mississippi River. It grows on ridges and dry slopes, from sea level in the north up to 11,000 feet (3,400 metres) in the Sierra Nevada.
The species was named for North American explorer Meriwether Lewis.
Linum lewisii (Prairie Flax) is a showy perennial forming tufts of spirally arranged, narrow blue-green leaves. It smothers itself in pale blue saucer-shaped flowers, 1 in. across (2.5 cm), veined in darker blue.
Blooming for weeks from late spring to midsummer, the flowers open in the morning and last for only one day, but the plant flowers profusely, making up for the short bloom time. They are borne atop wiry stems, which are leafy when the plant is young, gradually losing most of their leaves as they mature. Prairie Flax lasts only a few years but will self-sow once established, keeping its presence in the garden.
Blue flax is a durable wildflower in garden conditions, never becoming overly aggressive towards other plants. Plants are easily grown from seed. Blue flax grows well in lean soils without much organic matter and is healthier in well-drained soils.
II. How to Grow and Care
Lewis flax is a perennial wildflower adapting well to various environments, which contributes to its straightforward care. It requires a sunny spot with well-draining soil, simulating its native, dry habitats. Special care points for lewis flax include minimal watering, only necessary during prolonged droughts, and avoiding over-fertilization to maintain its natural growth habit. This resilience makes lewis flax an excellent choice for gardeners seeking low-maintenance flora.
Sunlight and Soil
Lewis flax thrives in full sun to part shade in average, medium moisture, well-drained soils.
Watering
Adapted to its origins in North American prairies, lewis flax thrives with moderate moisture and can endure short dry spells. This species has a preference for well-drained soils, mirroring the balance of its native habitat’s water availability. Watering should be consistent, aligning with a frequency of once every week to maintain health and vigor. Typically cultivated outdoors due to its resilience and adaptability, lewis flax flourishes when rain patterns complement its watering schedule, particularly during its active growing season.
Fertilizing
To bolster lewis flax’s growth and flower production, apply a balanced fertilizer (e.g., 10-10-10) in early spring as new growth appears, followed by a high phosphorus formula (e.g., 5-10-5) to encourage blooming. A light feeding every 4-6 weeks during the active growing season is ideal. Use half the recommended strength to avoid over-fertilization, which can harm lewis flax. As dormancy approaches in late fall, halt fertilization to allow lewis flax to naturally prepare for rest. Moderate application aligns with lewis flax’s modest feeding needs and seasonal cycles, enhancing vitality without disturbing its delicate ecological balance.
Pruning
Cut back the top half of the plant after bloom unless thousands of seedlings are desired.
Propagation
Lewis flax propagates best through stem cuttings taken during spring and summer months. This species presents moderate difficulty in propagation. Successful growth can be recognized by new shoot development. Maintain high humidity for optimal results.
Transplanting
The prime time for resettling lewis flax is during the vernal awakening, when their roots can thrive. Choose a sunny spot with well-draining soil. Gently nestle them into the earth, ensuring ample space for growth.
Repotting
Spring is ideal for repotting lewis flax, a charming, upright perennial. Due to slow growth, it needs repotting every 2-3 years. Choose a medium-sized pot for its root system, encouraging a healthy bloom set. Post-repotting, keep soil moist and provide full sun for lewis flax, ensuring a robust recovery. This easy-care species flourishes with minimal attention, making it a delightful addition for plant enthusiasts.
III. Uses and Benefits
Lewis flax is a weedy wildflower with bright decorative spring and summer blooms, making it perfect for planting alongside other wildflowers in garden beds. It spreads quickly and grows in clusters when planted in well-drained soil, but it can also survive in dry or rocky soils, making it work well in either rock gardens or informal gardens.
