When is the best time to plant peony?
Let me chat with you about when it is best to plant peony and how to maintain it. The following small series will give you a detailed answer to the peony tree due to its large, colorful, elegant and luxurious flowers. It is known as the "prime minister among flowers" and is an indispensable ornamental flower in the spring courtyard. Mastering scientific planting time and maintenance skills is the key to ensuring that peony grows vigorously and blooms every year.
###1. Choose the best planting time for peony 1. - - The advantages of planting in autumn are obvious-peony is a fleshy root plant with the characteristics of "rooting in autumn and blooming in spring." The golden planting period in North China is from mid-September to late October. At this time, the ground temperature is stable at 15-20℃, which is conducive to root wound healing and new roots germination. The Yangtze River Basin can be extended to early November, and it is recommended to carry out in warm southern areas from November to December. Experimental data show that the survival rate of peony planted in autumn can reach more than 95%, which is 30% higher than that of spring planting. 2. - - Avoid the risks of spring planting-there is a phenomenon of "inverted flowering" in spring planting, and plants preferentially consume nutrients to bloom, resulting in poor root development. If planting must be carried out in spring in northern China, it should be carried out immediately after the soil is thawed (early and mid-March), and flower buds must be cut off to ensure survival. Cases in Mudanjiang area show that the flowering rate of spring planted peony is less than 40% the next year. 3. - - Adjustment plan for special climate zones-Planting on the Yunnan-Guizhou Plateau should be carried out from late August to September to avoid water accumulation in the rainy season; in Lingnan, it is recommended to plant from December to January of the following year to break dormancy through low temperatures. Arid areas such as (X-J) need to be advanced to early September to ensure that sufficient root systems are formed before wintering.### 2. Four-step scientific planting 1. - - Site selection preparation-Select a sunny place with daily light of more than 6 hours, and the soil pH value is preferably 6.5-7.5. 30 days before planting, turn it 40cm deep, and mix it with 5kg of decomposed sheep manure +200g of bone meal +50g of sulfur powder (adjusted acidic soil) per square meter. The planting ridge needs to be raised by 30cm in low-lying land. 2. - - Seedling treatment-High-quality ramet seedlings should have 3-5 full bud points and retain more than 15cm of root system. Soak in 50% carbendazim 800 times solution for 20 minutes, and apply plant ash to the wound. Recent studies have shown that dipping in rooting powder (IBA 500ppm) can increase the number of new roots by 60%. 3. - - Standardize planting-dig a 40×40cm planting hole and make a 10cm loosening layer at the bottom of the hole. Place the bud point upward, and after covering with soil, the bud top is 3-5cm (north) or 2-3cm (south) lower than the surface. Immediately after compaction, pour thoroughly with root-fixing water, and cover 5cm of pine needles for insulation after the water has penetrated completely. 4. - - The key to spring tube next year-when new buds germinate (early March), loosen the soil lightly, and apply 5kg of urea +2 kg of potassium dihydrogen phosphate per mu. Remove lateral buds after buds appear, and retain the top main bud of each branch. Practice from the Qingdao Landscape Bureau has shown that reasonable bud thinning can increase the flower diameter by 15-20%.## 3. Technical points for full-cycle maintenance- -1. Fine management of water and fertilizer-Maintain soil water content at 60-70% during the growth period, properly control water before and after flowering to prevent buds falling-Apply key fertilizers three times a year: germination fertilizer (March, 15-15 -15-15 nitrogen, phosphorus and potassium), post-flowering fertilizer (May, high-potassium type), autumn fertilizer (September, organic fertilizer + calcium superphosphate)-Foliar fertilizer supplement plan: spray 0.2% borax +0.1% ammonium molybdate during the bud period to improve flowering quality--2. Scientific pruning and shaping- -Cut off the remaining flowers within 7 days after flowering, retaining the lower 2-3 leaves-prune the dead leaves in autumn and remove sick and weak branches-Keep 8-10 strong stems per cluster for plants over five years old-Special styling adjusts the angle by pulling branches to improve ventilation--3. Integrated pest and disease control- -Key prevention and control from April to June: leaf spot disease (50% mancozeb 600 times liquid), root rot (hymethalin irrigated roots)-Pest control: aphids (imidacloprid), red spiders (biphenhydrazate)-Biological control: releasing ladybugs to control aphids, hanging yellow sticky boards to trap thrips- -4. Special environmental response- -Overwintering in the north: cultivate 10cm of soil or cover corn stalks in the middle and late November-Jiangnan Meiyu: spray difenoconazole in advance to prevent mold-Typhoon protection: Build a 60-cm-high temporary support frame ###4, flower promotion and extension technology 1. - - Flowering control-The viewing period can be extended to 30-40 days through variety matching (early flowering + late flowering varieties). Refrigeration (storage at 2-4℃ for 30 days) can advance the flowering period by 15 days. 2. - - Quality improvement-Bag the buds when they are the size of eggs to protect them from fading due to direct sunlight. Cut flowers should be harvested in the early morning, and cut in water to retain 3 leaves. 3. - - Rejuvenation measures-Five-year-old plants need to be re-planted in autumn to remove the central old roots. Severely degraded plants can be cultivated to promote germination and improved with humus soil. Note: Each region needs to adjust management measures according to the actual climate. For example, Northeast China needs to prevent cold in advance, and South China should pay attention to shade in summer. Following the basic principles of "protecting soil moisture in spring, covering shade in summer, cultivating roots in autumn, and preventing cold in winter", high-quality paeonia with a flower diameter of more than 20cm can be cultivated. Continuously observing flowering performance for three years can gradually establish a locally suitable microclimate management plan.
The above is [] a full introduction to when to plant peony and how to maintain it for everyone to learn and understand!