To propagate Silky Dogwood, the most common method is through hardwood cuttings taken during the dormant season (late fall or early winter), where you collect stems about pencil-thick, dip the base in rooting hormone, and plant them in a well-drained potting mix, ensuring to keep the soil moist but not soggy; you can also propagate Silky Dogwood by seed by collecting mature fruits, cleaning the seeds, and stratifying them before planting in spring; layering is another option, where you bend a stem to touch the ground and cover it to encourage root development. 

Key points about propagating Silky Dogwood:

Best time for cuttings: Late fall or early winter when the plant is dormant. 

Cutting size: Aim for stems around pencil thickness and 6-12 inches long. 

Root hormone: Dip the cut end of the cutting in rooting hormone to promote root growth. 

Planting medium: Use a well-draining potting mix with peat and perlite. 

Seed propagation: Collect mature fruits, clean the seeds, and stratify them before planting in spring. 

Layering method: Bend a stem towards the ground, cover it with soil, and allow it to root.