What are the correct methods for division propagation of flowering plants?

How are flowering plants propagated by division.
Key techniques for division propagation of flowering plants:
1. Division method. Separate the root suckers, stem suckers and rhizomes produced on the mother plant and grow them into independent new shoots. The timing of division propagation depends on the flower species; generally, plants that bloom in spring are divided in the renovation season; plants that bloom in autumn are divided in spring. Autumn division should be carried out when the above-ground part has entered dormancy while the underground part is still active, such as tree peony and Chinese peony; spring division should be carried out before sprouting, such as hosta and iris. When dividing, for herbaceous perennials, first remove the old soil attached to the roots, then use a sharp knife to separate them along the natural gaps of the roots, so that each divided small plant has at least 2-3 buds. When dividing woody flowering plants, there is no need to knock the mother plant out of the pot; you can use a garden trowel to dig away the soil and dig out the young plant from one side of the root collar for planting. When dividing, damage the roots as little as possible to help survival.
2. Bulb division method. This method is mainly used for propagating bulbous and cormous flowering plants. The time for bulb division is after dormancy; the bulbs and corms are separated and dug out from the mother bulb and grown into independent new plants. For example, the small bulbs of hyacinth generally form around the base within 4 weeks; after separation from the mother bulb, they can reach the same size as the mother plant after 4 years of cultivation; small narcissus bulbs can grow into large bulbs after 3 years; a large tulip bulb forms 2-3 small bulbs after 1 year, and the small bulbs can grow into large bulbs after 1-2 years of growth. A gladiolus corm can form 1-4 large corms after 1 year of growth and can also produce many small corms.
1. Division method. Separate the root suckers, stem suckers and rhizomes produced on the mother plant and grow them into independent new shoots. The timing of division propagation depends on the flower species; generally, plants that bloom in spring are divided in the renovation season; plants that bloom in autumn are divided in spring. Autumn division should be carried out when the above-ground part has entered dormancy while the underground part is still active, such as tree peony and Chinese peony; spring division should be carried out before sprouting, such as hosta and iris. When dividing, for herbaceous perennials, first remove the old soil attached to the roots, then use a sharp knife to separate them along the natural gaps of the roots, so that each divided small plant has at least 2-3 buds. When dividing woody flowering plants, there is no need to knock the mother plant out of the pot; you can use a garden trowel to dig away the soil and dig out the young plant from one side of the root collar for planting. When dividing, damage the roots as little as possible to help survival.
2. Bulb division method. This method is mainly used for propagating bulbous and cormous flowering plants. The time for bulb division is after dormancy; the bulbs and corms are separated and dug out from the mother bulb and grown into independent new plants. For example, the small bulbs of hyacinth generally form around the base within 4 weeks; after separation from the mother bulb, they can reach the same size as the mother plant after 4 years of cultivation; small narcissus bulbs can grow into large bulbs after 3 years; a large tulip bulb forms 2-3 small bulbs after 1 year, and the small bulbs can grow into large bulbs after 1-2 years of growth. A gladiolus corm can form 1-4 large corms after 1 year of growth and can also produce many small corms.