Water
Water moderately during the growing season, allowing the soil to dry slightly between waterings. Reduce watering in winter. Ensure good drainage to prevent root rot, especially in pots. Drought tolerant once established.
Centranthus calcitrapae, or Annual Valerian, is a low-growing annual with clusters of pink to red flowers, blooming from late spring to summer. It thrives in well-drained
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun
100% intensity
Prefers at least 6-8 hours of direct sunlight daily for best flowering.
Moderate
50% intensity
Allow soil to dry between waterings. Reduce in winter.
Well-drained
50% intensity
Moderate
50% intensity
Thrives in average room temperatures; prefers cooler conditions in winter if overwintering.
Low
25% intensity
Benefit from light feeding in spring; generally not required.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water moderately during the growing season, allowing the soil to dry slightly between waterings. Reduce watering in winter. Ensure good drainage to prevent root rot, especially in pots. Drought tolerant once established.
Deadheading spent flowers encourages continuous blooming and prevents self-seeding if not desired. Trim back the plant after flowering to maintain a tidy appearance and encourage bushier growth in the following season.
Easily propagated from seed sown directly in the garden in early spring or autumn. Can also be grown from cuttings taken in late spring or early summer, though seed is the most common method.
As an annual, Centranthus calcitrapae is not typically repotted. If grown in containers and allowed to overwinter, repot in spring into a slightly larger pot with fresh, well-draining potting mix.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Annual Valerian (Centranthus calcitrapae)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Dipsacales |
| Family | Caprifoliaceae |
| Genus | Centranthus |
| Species | Centranthus calcitrapae |
Similar in genus Centranthus
Answers based on plant encyclopedia data
