Silver Ragwort (Jacobaea maritima)
Silver Dust
About this plant
Jacobaea maritima, commonly known as Silver Ragwort or Dusty Miller, is a perennial plant valued for its soft, silvery-gray foliage that adds a striking contrast in gardens. It has finely divided, woolly leaves and produces small yellow flowers in summer. Often used as an ornamental border or ground cover, it is appreciated for its drought tolerance and ability to brighten shady spots with its unique color.
Taxonomy
Higher classification: Asterales
Origin & Distribution
- Native region
- Mediterranean
- Distribution
- Widely cultivated in gardens worldwide, native to the Mediterranean region.
Care
- Suitable locations
- Outdoor, Balcony, Greenhouse
- Preferred window facing
- South-facing, West-facing
- USDA hardiness zones
- 7-10
- Soil pH
- 6.0-7.5 (neutral to slightly acidic)
- Soil type
- well-draining sandy or loamy soil
Watering. Water moderately, allowing the soil to dry out between waterings. Avoid overwatering to prevent root rot.
Fertilizing. Feed with a balanced, slow-release fertilizer in spring to support healthy growth. Avoid over-fertilizing, which can reduce leaf color intensity.
Jacobaea maritima is a tough, drought-tolerant plant that thrives in full sun and well-draining soil. It requires little maintenance but can suffer if overwatered or grown in heavy, wet soils. Regular pruning helps maintain its shape and encourages bushier growth.
Propagation
- Propagation methods
- Cuttings, Seeds
Ornamental features
- Flowering
- Yes
- Flowering period
- summer
Soft, silvery-gray foliage with small yellow flowers in summer.
Toxicity & Safety
Sap may cause mild skin irritation; keep away from children and pets to avoid accidental ingestion.
Allergy information
Jacobaea maritima may cause mild skin irritation in some people due to its sap. Those sensitive to plant sap should handle it with care and wear gloves. It is not known for causing pollen allergies.
Common problems
Overwatering can cause root rot. Poor drainage or too much shade may lead to weak growth. Occasionally, pests like aphids may appear but are usually not a serious problem.
Uses
Primarily grown as an ornamental plant for its attractive silver foliage and summer flowers. Used in borders, containers, and as ground cover.
Notes
Prune back after flowering to maintain compact shape and encourage new growth. Repotting is rarely needed as it prefers to be slightly root-bound. Avoid wet feet to prevent root diseases.