| Common Name | Japanese Thistle |
| Family | Asteraceae |
| Genus | Cirsium |
| Species | Japonicum |
| Variety | fisch. |
| Origin | China, Japan, Korea |
| Blooming | Foliage plant, flowers in summer to early autumn |
| Leaf Color | grey-green with purple veins |
| Sunlight | Half-shade / Sun |
| Category | Outdoor plants |
| Pet Friendly | No |
Well-drained fertile soil, tolerates clay but requires drainage to prevent rot
Moderate watering during active growth, drought tolerant once established, reduce in winter dormancy
Full sun required for robust flowering and growth, tolerate partial shade in hot climates
Apply balanced slow-release fertilizer in spring before new growth begins, minimal feeding needed thereafter
Remove spent flower heads to prevent self-seeding and dead foliage in late autumn
These are the insects and pathogens that commonly interact with this plant, including pests, parasites, and organisms typically associated with its care.
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