Cuttings before winter freezzz: under the Spirea bush. When DH mowing grass, leaves blowing this direction and pile up. Sticks keeping them in place. When ground frozen(stable frozen) I will add more leaves and sticks on top of pile(to keep them knit) before BIG snow. Or - tight bunch cuttings and bury under ground (as low as tulips) At spring: dig out-ready to go under the jar in shady garden.