Also known as Marsh Ragwort · Water Ragwort
Safety note: This plant may be toxic to humans and pets. See toxicity details.
Jacobaea aquatica, also known as Water Ragwort or Common Marsh Ragwort, is a perennial herb native to Europe and West Asia, thriving in wet habitats.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun to Partial Shade
50% intensity
Prefers bright light, but can tolerate some shade, especially in hotter climates.
Regular
75% intensity
Keep soil consistently moist, but not waterlogged.
Clay, Loam, Sandy; acidic, neutral, alkaline
50% intensity
Moderate
50% intensity
Grows best in temperatures between 15-25°C. Protect from frost.
Aquatic
50% intensity
Light
25% intensity
Feed sparingly during the growing season with a diluted balanced liquid fertilizer.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | Yes 5/5 intensity |
| Toxic for pets | Yes 5/5 intensity |
| Edible | No |
Contains pyrrolizidine alkaloids which are toxic to the liver.
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Jacobaea aquatica thrives in consistently moist soil. Water regularly, especially during dry periods, ensuring the soil does not completely dry out. Avoid waterlogging, as this can lead to root rot.
Overwatering in winter should be avoided if the plant is dormant.
Deadhead spent flowers to encourage further blooming and prevent self-seeding. In late autumn or early spring, remove any dead, damaged, or leggy stems to maintain a tidy appearance and promote vigorous new growth.
This also helps in shaping the plant.
Jacobaea aquatica can be propagated by seeds sown in spring or early autumn. It can also be propagated by division of established clumps in spring.
Cuttings taken in late spring or early summer can also root successfully if provided with suitable conditions.
Repot young plants annually in spring to provide fresh soil and more space for root growth. Mature plants can be repotted every 2-3 years or when they become root-bound.
Use a well-draining potting mix suitable for herbaceous perennials.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Senecio Aquaticus (Jacobaea aquatica)
Where Senecio Aquaticus (Jacobaea aquatica) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Jacobaea |
| Species | Jacobaea aquatica |
Similar in genus Jacobaea
Answers based on plant encyclopedia data
