Achillea atrata, commonly known as Black Yarrow, is a perennial plant in the Asteraceae family. It is native to subalpine and subarctic regions, thriving in rocky and well-drained soils. This plant is known for its dark, almost black flower heads and feathery foliage. It undergoes a dormancy period during the colder months.
Achillea atrata requires bright, direct sunlight for optimal growth. It prefers moderate temperatures and can tolerate cooler climates. The plant should be watered sparingly, allowing the soil to dry out almost completely between waterings. It thrives in moderate humidity levels.
土壌
Achillea atrata prefers well-draining loam soil. It can tolerate rocky and sandy soils as well, provided they are not waterlogged. Good drainage is essential to prevent root rot.
肥料
This plant does not have high fertilizer requirements. If needed, a balanced, slow-release fertilizer can be applied sparingly during the growing season.
植え替え
Repotting is generally not necessary for Achillea atrata unless it outgrows its current container. If repotting is needed, do so in the early spring before new growth begins. Use a well-draining soil mix and ensure the new pot has adequate drainage holes.
伝搬
Achillea atrata can be propagated through division or from seeds. Division is best done in the spring or fall. Carefully separate the plant into smaller sections, ensuring each section has roots attached, and replant them in well-draining soil.
剪定
Pruning is beneficial for Achillea atrata to maintain its shape and encourage new growth. Deadhead spent flowers to promote continuous blooming. Prune back the plant in late fall or early spring to remove any dead or damaged stems.
毒性
Achillea atrata is not known to be toxic to pets or humans. However, as with all plants, it is best to prevent ingestion by pets and children.
追加
Achillea atrata is a hardy plant that can tolerate poor soil conditions and drought once established. It is an excellent choice for rock gardens and alpine settings. Regular deadheading will encourage prolonged blooming.