Japanese Angelica seeds grow into perennial herbaceous plants with upright stems and broad, divided leaves. Plants are typically cultivated in temperate climates and are well adapted to cool, moist growing conditions. Japanese Angelica is commonly grown in garden beds, herb gardens, and large containers where consistent moisture and partial sun can be maintained. Seed-grown plants establish gradually and are suitable for long-term cultivation in home gardens with well-prepared soil.
Features
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Upright perennial growth habit
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Suitable for garden beds and large containers
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Adapted to cool and temperate climates
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Prefers evenly moist growing conditions
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Suitable for long-term garden cultivation
Specifications
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Scientific name: Angelica keiskei
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Common name (US): Ashitaba
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Seed type / variety: Japanese Angelica
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Growth habit: Upright perennial
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USDA hardiness zones: 5 to 9
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Planting season: Spring
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Sowing season:
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Indoors: February to April
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Outdoors: April to May
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Germination time and conditions: 14 to 28 days; cool temperatures with consistently moist soil
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Sunlight requirements: Partial sun to full sun
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Soil requirements: Moist, well drained soil rich in organic matter
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Watering needs: Regular watering; soil should remain evenly moist
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Mature plant size: 3 to 5 feet tall, 2 to 3 feet spread
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Plant spacing: 18 to 24 inches apart
