How to Propagate hairy mock orange?
Propagate by softwood or hardwood cuttings

hairy mock orange · Philadelphus incanus
Also known as: hoary mock orange
Grow in moist, well drained soil in sun to partial shade. Plant bare root plants in winter when the ground is not frozen or waterlogged. Incorporate lots of well-rotted manure or garden compost to improve the soil and water in well. Mulch in spring
Propagate by softwood or hardwood cuttings