Crown daisy (shungiku) Glebionis coronaria
Crown daisy (shungiku) (Glebionis coronaria) is an annual vegetable in the Asteraceae family, native to Mediterranean region (cultivated in East Asia). It grows 30 cm–1 m (12 in–3.3 ft) tall and 20–30 cm (8–12 in) wide, wants full sun and moderate water, and is hardy to about -5 °C (23 °F). Space plants about 15 cm (6 in) apart.
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Crown daisy (shungiku) at a glance
| Type | Annual vegetable |
|---|---|
| Family | Asteraceae |
| Mature height | 30 cm–1 m (12 in–3.3 ft) |
| Mature spread | 20–30 cm (8–12 in) |
| Spacing | 15 cm (6 in) centre to centre |
| Sun | Full sun, at least 5 h of direct sun a day |
| Water | Moderate; drought tolerance low, waterlogging tolerance none |
| Soil pH | 6–7 |
| Cold hardiness | About -5 °C (23 °F) once established (roughly USDA zone 9) |
| Heat stress | Likely above about 25 °C (77 °F) |
| Flowering | about 9–14 weeks after planting, for 4–9 weeks |
| Days to maturity | About 45 days from planting |
| Wind tolerance | Low |
| Pollinator value | Moderate |
| Edible | Yes: young leaves, petals |
| Native to | Mediterranean region (cultivated in East Asia) |
| Common in gardens of | 🇯🇵 Japan, 🇨🇳 China |
Is Crown daisy (shungiku) toxic?
- People: not known to be toxic
- Cats: mildly toxic
- Dogs: mildly toxic
- Parts: leaves, flowers
Related chrysanthemums contain pyrethrins and sesquiterpene lactones that can upset pets; not specifically documented for this edible species.
If a child or pet may have eaten part of a plant, call a poison centre or vet straight away.
Companion planting: what to grow with Crown daisy (shungiku)
No well-documented helpful pairing. Group it with plants that like full sun and moderate water.
Questions about Crown daisy (shungiku)
- How far apart should I plant Crown daisy (shungiku)?
- About 15 cm (6 in) apart, centre to centre. A mature plant spreads 20–30 cm (8–12 in).
- Does Crown daisy (shungiku) need full sun?
- Full sun: at least 5 hours of direct sun a day.
- How much water does Crown daisy (shungiku) need?
- Moderate water. Drought tolerance is low and waterlogging tolerance none.
- How cold-hardy is Crown daisy (shungiku)?
- It tolerates about -5 °C (23 °F) once established, roughly USDA zone 9. As an annual it is usually planted out after the last frost.
- When does Crown daisy (shungiku) flower?
- About 9–14 weeks after planting, for 4–9 weeks.
- Is Crown daisy (shungiku) poisonous to cats and dogs?
- For cats it is mildly toxic; for dogs mildly toxic; for people not known to be toxic. Related chrysanthemums contain pyrethrins and sesquiterpene lactones that can upset pets; not specifically documented for this edible species.
- What grows well with Crown daisy (shungiku)?
- There is no well-documented companion pairing for Crown daisy (shungiku). Group it with plants that like the same sun (full sun) and water (moderate).
Sources and evidence
Evidence grade C (C: plausible, mixed evidence).
- RHS Plant Finder, Royal Horticultural Society
- ASPCA Toxic and Non-Toxic Plant List, ASPCA
- University extension gardening guides (general), Various land-grant university extensions
Notes and assumptions
- Cool-season leaf crop that bolts in long days and heat; it can self-seed and is weedy in some mild climates.
Reference values for planning, not horticultural, veterinary or medical advice. Varieties, soils and local climates differ: check with a local nursery or extension service.
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