(Jacobaea maritima ‘Silverdust’)
Dusty Miller is tender perennial mound forming ornamental subshrub that is native to the Mediterranean region. At maturity it reaches the height of 8-12” and features cool, silvery, woolly-felted leaves and golden yellow flowers. This plant can be grown in a container, has medicinal properties, and its attractive foliage are great with cut flowers!
Species: Jacobaea maritima ‘Silverdust’
Cultivar: Dusty Miller
Also Known As: Silver ragwort.
Native Range: Northern Africa, western Asia, Europe.
Introduced into: Azores, Belgium, Canary Is., Chatham Is., Colombia, Costa Rica, Cuba, Cyprus, East Aegean Is., Great Britain, Greece, Hungary, India, Ireland, Jawa, Kriti, Krym, Netherlands, Poland, Sweden.
Grown as: Tender Perennial/Annual
Maturity (Blooms): Rarely flowers
Hardiness: Tender. Perennial in warmer climates. Grown as an annual and mulched to overwinter in cooler climates.
Light: Full sun to part shade. Tolerates full shade, but foliage color is best with some sun.
Water: Dry to medium.
Soil Moisture: Evenly moist, well-drained.
Suitability: Drought, Dry Soil.
Attracts Beneficial Insects?: No.
Containers?: Yes. This plant can be used in containers.
Sow Depth: On soil surface
USDA Zone: Annual: 2-6
Produces: a mound forming ornamental subshrub that bares beautiful silvery white, velvety foliage and golden yellow flowers.
Garden Uses: Beds or mixed borders. Edgings. Containers.
Wait for the seeds to dry out on the dusty miller plants at the end of the summer. Stop watering them a few weeks before you plan to harvest the seeds. This way the seedheads will dry out completely while still attached to the plants.
Remove the seedheads from the healthy Silverdust plants. Shake the seeds out into a brown lunch bag. If the seeds don't come out with a hard shaking, you may need to crush the pod manually and extract the seeds with your hands.
Toss a silica gel packet inside the brown lunch bag to keep the bag free from moisture.
Fold down the top of the lunch bag and place inside a glass jar. Tighten the lid and set the jar in a cool dry location until spring.
Known hazards: The plant contains pyrrolizidine alkaloids which are highly toxic to the liver, so the plant should not be used internally.