Planting time of national day flowers in Kunming area

August 15 to June 10 1. According to the query of official website of Kunming Bureau of Landscaping and Greening, the planting time in Kunming, Yunnan Province is from August 15 to 10/0. Japanese varieties must be raised at a temperature above 10 degrees (or in protected areas). About 30 days after seedling raising, 5 to 6 real leaves should be planted in the field, which is not suitable for close planting. The plant spacing is about 60 times 70cm, and 60 mu should be planted. Before planting, apply about 2,000 kilograms of organic fertilizer. After planting, apply an appropriate amount of long-acting organic fertilizer, with an appropriate amount of nitrogen, phosphorus and potassium fertilizer, keep the ridge surface properly dry, topdressing once at heading stage, and pay attention to supplementing enough water. Spraying borax 200-300g per mu, and spraying pesticides to prevent and control bacterial diseases during the growth of cauliflower. Do a good job of picking leaves and covering flowers to ensure that the flower ball is white, and the suitable harvest time is when the edge of the flower ball is loose.