Cephalaria ambrosioides is a tall perennial with honey-scented, pale yellow, globular flower heads, providing late-season color and attracting pollinators.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun
100% intensity
Prefers at least 6 hours of direct sunlight daily.
Moderate
50% intensity
Keep soil consistently moist but not waterlogged.
Well-drained
50% intensity
Moderate
50% intensity
Hardy in USDA zones 3-8. Tolerates moderate heat.
Low
25% intensity
Feed sparingly in spring with a balanced fertilizer.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
| Edible | No |
None
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water thoroughly when the top 2-3 cm of soil feel dry to the touch. Cephalaria ambrosioides prefers consistent moisture but dislikes waterlogged conditions. Reduce watering in autumn and winter to prevent root rot.
Ensure good drainage to avoid issues.
Deadhead spent flower stalks to encourage further blooming and maintain a tidy appearance. Cut back the plant to the ground in late autumn or early spring after the risk of frost has passed.
This removes dead foliage and prepares it for new growth.
Propagate from seed sown in early spring, either directly outdoors or in a greenhouse. Division of established clumps in spring is also an effective method. Ensure seeds are fresh and divisions are replanted promptly.
Repotting is generally not necessary for Cephalaria ambrosioides as it is a perennial that prefers to establish in the ground.
If grown in a container, repot in spring only if root-bound, using a well-draining potting mix. Choose a pot only slightly larger than the current one.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Cephalaria Ambrosioides (Cephalaria ambrosioides)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Dipsacales |
| Family | Caprifoliaceae |
| Genus | Cephalaria |
| Species | Cephalaria ambrosioides |
Similar in genus Cephalaria
Answers based on plant encyclopedia data
