The advantages of perennial flowering plants are their easy propagation and management, with the ability to bloom for multiple years after a single planting. They are ideal for urban greening and beautification. Their underground parts overwinter without forming large bulbs or tubers, and they can sprout and bloom again the following spring, enduring for years. Most belong to cold-region ecotypes, dividing into two main categories: those that can be planted outdoors and those requiring greenhouse cultivation. Perennial flowers are primarily propagated by division, usually during their dormant period. For species with fewer new buds, methods like cuttings and grafting can be used for propagation, while sowing is more commonly used for breeding new varieties.

In particular, the following points are addressed:

Perennials are widely used in landscaping, courtyards, roadside, riverside, and slope greening.

2. Planting options that are multi-locational, convenient, cost-effective, and capable of significantly reducing labor and material resources.

3. Most varieties are not picky about environmental conditions and can be managed on a more relaxed scale.

Rootstock flower varieties are abundant, with variations in plant height, blooming periods, flower colors, long-lasting flowering time, and rich, vibrant hues.

5. Perennial flowering plants. Many varieties are highly effective in purifying the environment.

6. Some varieties are excellent for cut flowers, potted flowers, and dried flowers. This concludes the highlights of the varieties of perennials.