The Propagation of Courtyard Flowers in September
Here is a detailed introduction to the propagation of flowers in September in the courtyard.
1. Sowing: The woody flower species suitable for sowing include: peony, red camellia, laughing orchid, magnolia, magnolia, horse chestnut, summer蜡梅, Canary Island date palm, etc. Among them, the seeds of horse chestnut can be sown in furrows, with the seed scar facing downward, and the covering soil should not be too deep, preferably 2 to 2.5 centimeters. Cover with plastic film or straw to retain moisture. The seeds of summer蜡梅 can be soaked in cold water for 24 to 36 hours before sowing in the ground, and seedlings will emerge in about two weeks. Except for summer蜡梅 seeds, which can be dry-stored until the following spring for sowing, the other species must be stored in wet sand. September is a good time for sowing autumn-blooming herbs, including: hollyhock, China pink, tall cineraria, dwarf cineraria, pansy, snapdragon, dwarf petunia, Chinese pink, daisy, poppy, marigold, black-eyed Susan, iris, beauty bush, etc. Moreover, greenhouse flowers such as cyclamen, primrose, natal lily, cineraria, begonia, gerbera, globe amaryllis can also be sown at this time, but they must be kept in a plastic greenhouse over winter.
2. Cutting: Using a mixture of sand and rice husk ash as the cutting medium, the following trees and shrubs can be propagated by cutting in the courtyard: firethorn, Mahonia, laughing orchid, crape myrtle, sweet osmanthus, Japanese kerria, fuchsia, hibiscus, wintersweet, snowball viburnum, weigela, orange jasmine, Arabian jasmine,珠兰, veined geranium, coral flower, rubber tree, schefflera, and screw pine. Using general sandy soil as the seedbed, the following woody flowers can be propagated by cutting: boxwood, purple magnolia, St. John's wort, spiraea, pomegranate, hibiscus, crape myrtle, snowball viburnum, hydrangea, holly, golden edge privet, red-leaf barberry, heavenly bamboo, fig, oleander, June snow, gardenia, fatsia, Japanese quince, peony, etc. Some herbaceous flowers can also be propagated by cutting, such as scarlet sage, globe amaranth, marigold, sulfur flower, and chrysanthemum.
3. Grafting: The following trees and shrubs can be propagated by grafting: using the root segments of peony as the rootstock to graft superior varieties of peony; using the seedlings of nectarine and apricot as the rootstock for bud grafting of Prunus triloba, peach, longevity peach, red-leaf peach, and plum; using the seedlings of green ash as the rootstock for bagging and moist grafting of red maple and feather maple; using the seedlings of white magnolia as the rootstock for bud grafting of superior varieties of white magnolia and Yujin magnolia; using potted purple magnolia as the rootstock for close grafting of white magnolia; using the seedlings of citrus as the rootstock for bud grafting of kumquat; using the rootstock ofchoisya for close grafting of osmanthus; and using the rootstock of potted蜡梅 for close grafting of superior varieties of蜡梅.
4. Layering: The following ornamental trees and shrubs can be propagated by layering: Japanese quince, weigela, hydrangea, gardenia, oleander, forsythia, Chinese bellflower, osmanthus, purple magnolia, jasmine, laughing orchid, camellia, 珠兰, holly, snowball viburnum, hibiscus, wintersweet, and spiraea.
5. Division: The following ornamental plants can be divided: Cymbidium, Cypripedium, Cymbidium, peony,牡丹, Rhapis excelsa, purple shamrock, sunflower, snake plant, small angel, green emperor, silverback, nephrolepis, nandina, Japanese quince, purple magnolia, silver-striped liriope, one-leaf orchid, and mondo grass. Additionally, hyacinth, tulip, freesia, caladium, narcissus, Mediterranean bellflower can also be divided at this time to cultivate large flowering bulbs.
The above provides a comprehensive introduction to the propagation of courtyard flowers in September, hoping to bring some knowledge about green plants to green plant enthusiasts.