Manyflowered Gromwell (Lithospermum multiflorum) is a perennial herb native to the central and western United States as well as parts of Canada and Mexico. This plant thrives in light soils that are either dry or moist, preferring full sun exposure. It can be found growing wild in various regions including Alberta, Arizona, Arkansas, British Columbia, California, Colorado, Florida, Illinois, and other states like Indiana, Iowa, Kansas, Louisiana, Manitoba, Minnesota, Missouri, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Ontario, Saskatchewan, South Dakota, Texas, Utah, Wisconsin, and Wyoming. Known for its edible properties, the seeds of this plant are a valuable resource. One distinctive feature is its ability to grow in diverse habitats, from sandy to medium soils, making it adaptable to different environments.
Manyflowered Gromwell (Lithospermum multiflorum) is a perennial herb native to the central and western United States as well as parts of Canada and Mexico. This plant thrives in light soils that are either dry or moist, preferring full sun exposure.
Start with Manyflowered Gromwell as a simple, low-maintenance perennial for your garden.
Seeds or seedlings, gardening gloves, trowel.
Plant in spring after the last frost or in fall before the first freeze.
Choose a well-draining soil with a pH between 6.0 and 7.5. Ensure containers have drainage holes.
Direct sow seeds in the garden after danger of frost is past, or start indoors 4-6 weeks before planting out.
Water sparingly to keep soil moist but not soggy. Monitor for pests and diseases.
Provide full sun exposure and water only when the soil is dry. Deadhead spent flowers to encourage more blooms.
Prune dead foliage in late winter to maintain plant health and appearance.
Overwatering, planting in heavy soils, neglecting to prune dead foliage.
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