1. Summer climatic conditions The average summer temperature is 25 degrees, up to 35 degrees, the low temperature is not less than 15 degrees, and the extreme temperature is up to 40 degrees. The sun is strong and the humidity is high. In late August, the north of North China has become cool. 2, suitable for flowering in summer, June, oleander, rose, dahlia, halved lotus, jasmine, gardenia, lotus, snake, chrysanthemum, lily, lily, mountain, jade, along the grass, Flowers such as Zhulan and Wenshulan have blossomed and are colorful. In July, Lagerstroemia, Jasmine, Canna, Half-Lotus, Impatiens, A String of Red, Milan, Dahlia, Gladiolus, Bells, Begonia, Red Melaleuca, Aloe Vera, Acacia, Hollyhock, Cleome, Nasturtium , Cockscomb, Gardenia, Amaranth, Red Pepper, etc. In August, jasmine, cedar, canna, lotus, water lily, tuberose, amaranth, cockscomb, marigold, gladiolus, dahlia, crape myrtle, paphiopedilum, eucalyptus and so on. 3, summer flower reproduction in June, you can plant primrose, geranium, cineraria, etc.; grafted autumn chrysanthemum, rose and so on. From July to August, it is a hot summer. Most species should not be propagated, but jasmine, hibiscus, June snow, and dahlia can be propagated. Agave and cactus can be propagated separately. In late August, you can plant Dianthus, Guizhuxiang, Pansy, and Calendula. 4, summer flower cultivation management in June, focusing on strengthening fertilizer and water management, seedling seedlings to carry out seedlings, drought-proof watering, shading sunscreen; strengthen pest control, such as mites, chafers, scale insects and so on. Pay attention to the collection of spring flowering seeds, such as 虞美人, cornflower, snapdragon, Dianthus, and osmanthus. In July, the summer is hot, pay attention to watering and drought prevention, should be carried out sooner or later, avoid watering at noon; spring flowers such as Dianthus, Snapdragon, Hollyhock, etc., continue to collect seeds. In August, pay attention to weeding, drought prevention, flood control and shading; strengthen pest control; control powdery mildew and black spot disease such as rose, orchid and so on.
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