Peony old management points in autumn

Peony old management points in autumn

If a peony that's over a century old is properly cared for in the fall, it can ensure timely blooming and vibrant flowers. Therefore, proper autumn care is crucial and should focus on the following key areas: First, managing fertilization and watering is essential. Due to the thickening of the wood and fibrous layers, an old peony has a slower rate of water and nutrient absorption. As such, fertilizers must not be overly concentrated; they should be applied in small amounts and never as a strong solution. During dry seasons in autumn and winter, excessive watering can lead to root damage because the fleshy roots cannot absorb the excess moisture. This may result in yellowing leaves and no blooms the following year. Over time, this can even cause the plant to die. In the fall, both fertilizer and water should be reduced. It's advisable to switch from summer-specific fertilizers to a balanced compound fertilizer. Organic fertilizers should either be used slowly or avoided altogether. Since peonies develop their new growth in the fall, a well-developed root system during the bud differentiation and development stages is critical for ensuring a healthy bloom the next season. As the ground becomes more moist in the fall, it's best to apply a top dressing of compound fertilizer. This helps replenish nutrients, supports root health, strengthens the stems, and prepares the plant for the upcoming flower bud formation. From autumn through winter, it’s important to limit both fertilizer and water. A small amount of cake fertilizer or microbial fertilizer (such as bean cake, fish, shrimp, or shellfish) can be buried about 30 centimeters away from the roots to loosen the soil. Peonies are drought- and cold-resistant, but if too much fertilizer is applied, especially as temperatures drop in late autumn and early winter, it might encourage premature leaf growth. This could lead to sensitive buds being damaged by sudden temperature drops, which may affect the flowering the following year. Thus, monitoring the plant’s phenological changes during this period is very important. Second, garden hygiene and pruning are vital. In winter, peony leaves stop growing and enter dormancy. Old varieties tend to go dormant earlier than regular peonies. If there is heavy rainfall in the fall, the ground becomes wet, and dead leaves can accumulate. These must be removed promptly to prevent diseases like gray mold and brown spot. Clearing the garden and maintaining drainage systems is also necessary to avoid waterlogging during winter, helping the peony survive safely. Pruning should include removing diseased, broken, overlapping, thin, old, inward-growing, and leggy branches. Through careful pruning—such as thinning, shortening, and cutting back—the lifespan of the peony can be extended. This promotes better air circulation and light penetration, reducing the risk of disease and pests while keeping the plant vigorous with strong, lush foliage. Third, soil cultivation is important. As winter approaches, it's recommended to dig and turn the soil, allowing the topsoil and deeper layers to mix. Repeat this process several times to keep the soil loose and well-aerated. Weeds should be removed, along with any eggs or larvae. Any remaining organic matter, compound fertilizers, or microbial fertilizers can be mixed into the soil to improve fertility and reduce pest and disease risks.

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