How to Propagate Dusty Miller

Transplant dusty miller to a 6-inch growing container filled with potting soil when the plants reach 4 inches in height.

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Dusty miller (Senecio cineraria), also known as silver ragwort, is a tender perennial grown as an annual in all but the warmest climates. It has attractive silver foliage that develops into 8- to 15-inch-high clumps when mature.

Dusty miller produces small, unremarkable yellow flowers in summer, but these are removed by many gardeners. It prefers full sun and well-drained soil and doesn't require very much fuss once established. Propagate dusty miller from seed in late winter, several weeks before the last spring frost is expected in your area.

  • Dusty miller (Senecio cineraria), also known as silver ragwort, is a tender perennial grown as an annual in all but the warmest climates.
  • Dusty miller produces small, unremarkable yellow flowers in summer, but these are removed by many gardeners.

Fill a 3- to 4-inch growing container 3/4 full with a combination of equal parts peat moss and perlite. The selected container should have drainage holes in the bottom to prevent over-watering.

Add just enough water to moisten the growing mixture.

Sprinkle the dusty miller seeds across the surface of the mixture. Do not cover the seeds -- they will not germinate without sufficient light.

Stretch a clear plastic bag over the growing container and place a rubber band at the container's base to hold the bag in place.

Move the container to a location that receives indirect sunlight the majority of the day. Remove the plastic bag as soon as the seedlings start to emerge.

  • Add just enough water to moisten the growing mixture.
  • Remove the plastic bag as soon as the seedlings start to emerge.

Water the young plants when the soil feels dry to the touch.

Transplant to a 6-inch growing container filled with potting soil when the plants are 4 inches tall. Move the dusty miller plants to the garden when they are 6 to 8 inches tall and all danger of frost has passed.

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