July Flower Events
The editor answers everyone's questions about flower care knowledge. July's flower events, next the editor will introduce to everyone.
June is almost over, and July is approaching. As July begins, the weather really heats up, and it's not exaggerated to say it's a blazing hot weather. During this period, flowers enter a new event, and they may dry up and sunburn if not careful, so it requires more careful attention from flower growers during this period. Here is a simple overview of July flower events:
1. Sowing
In July, the following grass flowers can be sown: Cineraria,四季报春, Ornamental kale, Campanula, etc. When sowing, attention should be paid to keeping the soil moist, shading, and increasing ventilation and light transmission. In addition, some flowering trees can be propagated by water cutting in July. They are: Gardenia, Oleander, Rose, Jasmine, Zonal pelargonium, Ficus carica, Pomegranate, Fuchsia, Wisteria, Hollyhock, etc. To propagate flowering trees by water cutting, first, a piece of thick 1 to 2 cm foam plastic board is required as a cutting fixing material after perforation; secondly, the water quality of the cutting water should be kept clean, and several pieces of charcoal can be added to prevent decay.
2. Layering
In July, the following flowering trees can be propagated by layering: Michelia (high pressure), Chimonanthus praecox, Honeysuckle, Hydrangea macrophylla, Trumpet Creeper, Halesia maculata, Oleander,锦带花, Caragana sinica, Osmanthus fragrans, Gardenia jasminoides,紫玉兰, Jasmine, Zonal pelargonium, Climbing rose, Prunus mume, etc.
3. Division
In July, the following ornamental plants can be divided: Hosta, Osmunda japonica, Iris, Cyperus alternifolius, Aspidistra elatior, Rhoeo discolor, Bromeliaceae, Haworthia, Chlorophytum comosum, Liriope spicata, Anthericum lilioides, Zephyranthes, Nephrolepis cordifolia, Iris, and Fuchsia.
II. Flower Management
1. Watering
For flowers that enter a semi-dormant state in high temperatures, such as红花酢浆草, Pelargonium, Fuchsia, Clivia miniata, Zantedeschia aethiopica, Begonia, Sedum, Hoya kerrii, Euphorbia milii, Crassula, Adenium obesum, Echeveria, Dendrobium, Cattleya, Aloe vera, etc., their growth activity basically stops, and their metabolic rate is very low. Watering should be reduced to keep the potting soil moist and pay attention to shading and ventilation to create a relatively cool environment for them. If watered too much, it can easily lead to root rot and severely affect their recovery growth after autumn.
For flowers that enter a deep dormant state in high temperatures, such as Cyclamen, Amaryllis, Ranunculus, and Dictamnus albus, they show the withering of the aboveground stems and leaves and the death of the underground nutrient roots in July, with the underground rhizomes or tubers dormant in the soil during the summer. For flowers in a deep dormant state, stop watering, move them to a cool place, and keep the potting soil slightly dry.
For flowers that are growing vigorously, especially ornamental foliage plants, such as Cycas revoluta, Aspidistra elatior, Monstera deliciosa, Ficus elastica, Michelia alba, Jasmine, Gardenia jasminoides, Michelia, Dracaena fragrans, Calathea, Syngonium, Aglaonema, Dieffenbachia, Philodendron bipinnatifidum, Spathiphyllum, Dracaena, Pachira aquatica, Camellia, Camellia sasanqua, Aucuba japonica, Pyracantha, Fortunella margarita, Lemon, Podocarpus macrophyllus, Wisteria, etc., not only should the amount and frequency of watering be increased, but also appropriate foliar spraying should be given, combining spraying and watering. Especially during consecutive cloudy days, due to high temperatures and dry air, watering and spraying should also be provided, and one should not neglect it. Once the potting soil becomes too dry and the leaves wilt, first spray water on the leaves, wait for the leaves to recover and become upright, and then water the roots. Otherwise, it is very easy to cause "leaf drop" in woody flowers or lead to the decay of the plant's nutrient roots, even causing the plant to die.
For potted plum trees, since July to August is their flower bud differentiation period, appropriate "water reduction" should be given to promote normal flower bud differentiation. The method is to keep the leaves of the potted plant slightly curled inward to control nutrient growth; if the nutrient growth of the branches cannot be controlled, you can cut off the second new shoot after it has 2 to 3 leaves, leaving only one leaf at the base, and flower buds can still differentiate in the leaf axil.
In July, watering potted flowers should avoid the hours around noon, with the best time being before 10 am and after 4 pm, to avoid the water temperature being too different from the soil temperature, affecting the growth of potted ornamental plants. If there is continuous rain in this month, the flower pots should be checked promptly after the rain, and any积水 in the pots should be drained in time, and the soil should be loosened once when the potting soil is slightly dry, to avoid the root rot of the potted plants.
2. Fertilizing
In July, the following four categories of ornamental plants should strengthen fertilization management. The first category is flowers with a particularly long blooming period from spring and summer to autumn, such as Magnolia denudata, Rose, Gardenia jasminoides, and Jasmine; the second category is flowers that bloom in autumn, such as Chrysanthemum, Osmanthus fragrans, and Hibiscus syriacus; the third category is flowers that are admired for their flowers and fruits in winter, such as Fortunella margarita, Nandina domestica, Chimonanthus praecox, and Rhododendron; the fourth category is ornamental foliage plants, such as Bambusa multiplex, Monstera deliciosa, Philodendron bipinnatifidum, Ficus elastica, and Aglaonema. For the first three categories, in addition to applying necessary nitrogen fertilizer, an appropriate amount of phosphorus and potassium fertilizer should be applied to meet the plant's comprehensive needs for nitrogen, phosphorus, and potassium, providing sufficient nutritional guarantee for their bud formation, flowering, and fruit setting; for ornamental foliage plants, a thin cake fertilizer solution or urea solution should be mainly used. The fertilization method is best applied as a thin liquid fertilizer.
In July, the following grass flowers should strengthen fertilization: Scarlet sage (white, purple, pink), Celosia, China aster, cockscomb, marigold, zinnia, chrysanthemum, black-eyed Susan, dwarf morning glory, golden glow, shrimp plant, Cymbidium, marigold, Mirabilis jalapa, and Clivia miniata. The woody flowers include: Wisteria, Pomegranate, Poinsettia, Michelia, Osmanthus fragrans, Camellia, Camellia sasanqua, Hibiscus syriacus, Jasmine, Michelia alba, Gardenia jasminoides, Night-blooming cereus, Rose, Malus,鸳鸯茉莉, Abutilon, Rhododendron, Gardenia jasminoides, Wisteria, and Hibiscus syriacus. There are many types of ornamental foliage plants, such as Bromeliaceae, Dracaena fragrans, Bambusa multiplex, Araucaria heterophylla, Calathea, Syngonium, Aglaonema, Dieffenbachia, Philodendron bipinnatifidum, Spathiphyllum, Dracaena, and Pachira aquatica.
In July, for ornamental plants that are in a dormant or semi-dormant state, fertilization must be stopped, especially for succulent ornamental plants, such as Sedum, Echeveria, Othonna, and豹皮花, fertilization should also be stopped to prevent plant decay.
3. Pruning, pinching
Summer is a good time for topping and pinching ornamental plants that are vigorous in growth, have strong germination ability, and are tolerant to pruning. Pinching refers to the direct removal of the young terminal buds with fingers. The main potted plants suitable for pinching are: Ulmus parvifolia, Sageretia theezans, Syzygium buxifolium, Ceiba speciosa, Buxus microphylla, Chimonanthus praecox, Pyracantha, Photinia serratifolia, Elaeagnus pungens, Myrica cerifera, Vitex negundo, and Ficus retusa. Pruning refers to the cutting of a part of the new shoot with scissors to promote the germination of the lower side buds, forming a beautiful crown or tree shape. The types of potted plants suitable for pruning are mostly woody ornamental plants that are not convenient for finger pinching, such as Sabina, Thuja, Juniperus, Microbiota decussata, Quercus aliena, Ilex ciliata, Sabina chinensis.
For those potted flowers that continue to bloom for a long time, such as Gardenia jasminoides, Rose, Jasmine, and Zonal pelargonium, their spent flowers and stems should be removed in time, and the branches that have bloomed should be pruned appropriately to promote the germination of the lower side buds and induce reblooming. For杜鹃, Camellia, Camellia sasanqua, Malus, Chimonanthus praecox, and Prunus mume, the overly long branches that stand out should also be pruned to form a good crown shape.
4. Shading
July is the month with the strongest sunlight and the highest temperature, so special attention should be paid to shading management for potted ornamental plants.
For those ornamental plants that prefer shade or semi-shade, they must be moved to a shade house to avoid direct sunlight that can harm the plants.
For small and mini potted landscapes, due to the high temperature and dry air in this month, in addition to providing necessary shading, the flower pots must be buried in wet sand, which can reduce the evaporation of the soil surface and is also beneficial for protecting the plant's nutrient roots.
The above is a detailed explanation of July's flower events. I hope this article can bring you help in green plant management!