Helenium amarum
分類
家族Asteraceae
属Helenium
ゾーン5
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Plants of the World Onlineについて
Helenium amarum, commonly known as bitterweed or yellow sneezeweed, is an annual plant in the Asteraceae family. It is native to North America and typically found in prairies, meadows, and along roadsides. The plant is known for its bright yellow flowers and its ability to thrive in temperate climates.
としても知られている
Bitterweed
Gaillardia Amara
Heleniastrum tenuifolium
Helenium tenuifolium
Helenium tenuifolium var. tenuifolium
概要
詳細
お手入れ方法
Helenium amarum is relatively easy to care for. It prefers full sun and moderate temperatures. Watering should be done when the soil is almost completely dry. The plant does well in average humidity levels and does not require special temperature conditions.土壌
Helenium amarum prefers well-draining loamy soil. It can tolerate poor soil conditions but thrives best in moderately fertile soil. Ensure the soil dries out between waterings to prevent root rot.肥料
A balanced fertilizer with an N-P-K ratio of 10-10-10 can be applied during the growing season to promote healthy growth. Fertilize sparingly, as the plant does not require heavy feeding.植え替え
As an annual plant, Helenium amarum does not typically require repotting. However, if grown in containers, repotting can be done at the beginning of the growing season to refresh the soil.伝搬
Helenium amarum can be propagated by seeds. Sow the seeds in early spring after the last frost. Ensure the seeds are lightly covered with soil and kept moist until germination.剪定
Pruning is not necessary for Helenium amarum. However, deadheading spent flowers can encourage more blooms and maintain a tidy appearance.毒性
Helenium amarum is not known to be toxic to pets or humans. However, it is always advisable to prevent pets from ingesting any plant material.植物の手入れに革命を起こす
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