Hibiscus sabdariffa, commonly known as Roselle, is a member of the Malvaceae family and the Hibiscus genus. It is native to tropical and subtropical regions and is often grown as an annual or biennial plant. The plant is known for its bright red calyces, which are used to make beverages, jams, and herbal teas. It thrives in seasonally dry tropical climates.
Hibiscus sabdariffa requires bright, direct sunlight for optimal growth. It prefers moderate temperatures and moderate humidity levels. Water the plant when the soil partially dries out, and ensure it has good air circulation to prevent fungal diseases.
収穫
Hibiscus sabdariffa, commonly known as Roselle, is typically ready for harvest about 120 days after planting. The calyces, which are the main part harvested, should be picked when they are bright red and fleshy, usually just after the flowers have withered. Harvesting is done by hand, carefully cutting the calyces from the stem to avoid damaging the plant. It is important to harvest regularly to encourage continuous production. The calyces should be dried immediately after harvesting to prevent mold and preserve their quality.
土壌
The plant prefers well-draining loam soil with a slightly acidic to neutral pH. Ensure the soil is rich in organic matter to support its growth. Good drainage is essential to prevent root rot.
肥料
Use a balanced fertilizer with an N-P-K ratio of 10-10-10. Fertilize the plant every 4-6 weeks during the growing season to support its growth and flowering.
植え替え
Repot Hibiscus sabdariffa when it outgrows its container or if the soil becomes compacted. Choose a slightly larger pot with good drainage and fresh, well-draining soil. Repotting is best done in the early growing season.
伝搬
Propagate Hibiscus sabdariffa through seeds or stem cuttings. Sow seeds in a warm, sunny location or start them indoors before the last frost. Stem cuttings can be taken in the growing season and rooted in a moist, well-draining medium.
剪定
Prune the plant to encourage bushier growth and remove any dead or diseased branches. Pruning is best done in the early growing season. Regular pruning helps maintain the plant's shape and promotes better air circulation.
毒性
Hibiscus sabdariffa is not toxic to pets or humans. The calyces are edible and commonly used in culinary applications. However, always ensure that any plant material is free from pesticides and other contaminants before consumption.
追加
Hibiscus sabdariffa is known for its medicinal properties and is often used in traditional medicine. The plant is rich in antioxidants and vitamin C, making it a popular choice for herbal teas and health supplements.