Change Basin

Some potted flowers come out of the room or shed and can be changed. Species such as: camellia, Rhododendron, rubber tree, goose palm firewood, Araucaria, crane hope orchid, dragon blood tree, scattered tail sunflower, fish tail sunflower, etc

Reshaping

For brandy, Milan, Michelia, Daidai and camellia that have just been moved outdoors, the dead branches and thin branches can be trimmed to maintain a good plant shape; The excessive branches of potted plum blossom, Chimonanthus praecox, Pyracantha, Begonia and so on are led to promote the benign development of plant shape; Prune the flowering rose, Begonia, peony, Erythrina, Prunus, etc

Watering

As the temperature rises in May, the amount of water for potted flowers placed in the courtyard should be increased, which can be controlled once a day. When the weather is fine, pay attention to spraying water around the plants to improve the air humidity; In case of continuous cloudy and rainy weather, the basin soil shall be checked frequently. If there is ponding in the basin, it shall be removed in time and the basin shall be replaced as soon as possible. When watering potted flowers that like acidic soil environmental conditions, such as gardenia, camellia, Rhododendron, brandy, Michelia, Zhulan, Daphne odora, cycas, brown bamboo and turtle backed bamboo, a small amount of ferrous sulfate can be added to the water to prevent physiological yellowing of the plant. The dormant Cyclamen and calla should stop watering and put them in a wet and cool place

Fertilization

May is the vigorous growing season of potted flowers. For those flowers and trees that watch flowers, admire fruits and smell fragrance, such as brandy, Milan, rose, Daidai, gardenia, Zhulan, jasmine, camellia, plum blossom, Chimonanthus, peony, etc., compound fertilizer with balanced nitrogen, phosphorus and potassium can be applied every half month, or a small amount of potassium dihydrogen phosphate can be added to the cake fertilizer water to facilitate the restorative growth of plants, Carry out flower bud differentiation or continuous pregnant bud flowering. For those species that mainly observe leaves, such as tortoise backed bamboo, spring feather, little angel vine, green velvet, rubber tree, red (green) GEM, cycad, brown bamboo, Hulk, green emperor, yiyelan, Guangdong evergreen, etc., apply the soaked cake fertilizer water every half a month; For foliage plants with markings, such as Phnom Penh tiger tail orchid, colorful pineapple, golden heart Brazilian iron, three color plantain, Dai powder leaf, variable leaf wood, colored leaf grass, white butterfly fruit taro, Yanshan ginger, flower leaf cassava, golden peach leaf coral, Phnom Penh Fugui bamboo, reticulated grass, flower leaf goose palm firewood, golden Pueraria, hanging bamboo plum, etc., while applying thin cake fertilizer solution, 0.2% potassium dihydrogen phosphate outside the root can make its leaf color more fresh and bright

Shade

In May, potted plants that like half shade or shade should be moved to the shade or under the shade of trees, such as turtle backed bamboo, brown bamboo, bamboo taro, spring feather, Hulk, red (green) GEM, green emperor, Dai powder leaf, fruit taro, orchid, azalea, camellia, tea plum, crane hope orchid, Zhulan, Clivia, bulbous Begonia, bamboo Begonia, Chlorophytum, kidney fern, loose tail sunflower, flower candle, capsicum, green pineapple, Boston fern, etc. For flowers and trees that like light, sufficient light must be given, such as cycads, pomegranates, roses, jasmine, Chimonanthus, Pyracantha, broad-leaved Mahonia, etc

Pest control

Pay attention to the prevention and control of powdery mildew and brown spot of potted roses, flowering roses and miniature roses planted and raised in the courtyard. If leaf eating pests are found, they should be controlled with 1000 times of 90% trichlorfon crystal in time. The larvae of Citrus Papilio on the plants of Rutaceae, such as Dai Dai, kumquat, bergamot and lemon, should also be killed in time or controlled with pyrethroids

Potted plants suitable for balcony display in May. Potted ornamental plants that have entered the flowering period include peony, iris, dwarf lily, vermilion, jasmine, pomegranate, big rock Tung, goldfish grass, Phlox, carnation, New Guinea Impatiens, June snow, Begonia, sea fairy, etc. In addition, the foliage plants that can be used for decoration on the indoor balcony include: Tianzhu, golden peach leaf coral, yiyiyilan, Araucaria, brown bamboo, loose tail sunflower, rubber tree, little angel vine green velvet, golden heart Brazilian iron, luohansong, goose palm firewood, cycad, South American Iron tree, etc