Peonies can be propagated by division or by taking cuttings

Division

Prepare the plant: In late summer or early fall, cut back the faded foliage. 

Dig up the plant: Use a garden fork to lift the plant out of the ground. 

Clean the roots: Spray the roots with water or wash them under running water to remove soil. 

Cut the plant into sections: Use a sharp knife or pruners to cut the plant into sections. Each section should have at least three to five eyes and a healthy root system. 

Replant the sections: Plant the sections in full sun, in fertile, well-draining soil, and three to four feet apart.

Cuttings 

Take the cuttings In late summer or early fall, cut young, woody shoots at a 45-degree angle just below a node.

Prepare the cuttings Remove all the leaves from the stem, except for the top two or three. Dip the cut end of the stem into rooting hormone powder.

Plant the cuttings Plant the cuttings in a pot with moist growing soil that is about 3 cm deep.

Grow the cuttings Let the cuttings grow on a windowsill or similar place until a small root ball has formed.

    You can also try layering a pliable stem or sowing seeds to propagate tree peonies. 

    Tree peonies can be propagated by grafting, division, or branch layering

    Grafting

    • The most common method for propagating tree peonies 

    Involves joining a tree peony cutting to the root of a herbaceous peony  The herbaceous peony acts as a “battery” to help the tree peony grow in its first few years  Requires practice and skill 

    Division 

    • A method for multiplying peonies
    • Peonies are hardy perennials that don’t need to be divided to keep blooming

    Branch layering 

    • Involves burying a living branch of a tree peony underground
    • The branch will eventually form new roots and can be cut away from the mother plant
    • This method can create new clones and lower-growing tree peonies

    Growing from seed

    • A method for producing new varieties of tree peonies 

    Involves covering seeds with coarse grit and placing them outside to be exposed to all weather conditions  Visible germination usually occurs during the second spring