In the northern regions, most potted plants and flowers cannot survive the winter outdoors. Once brought indoors, it's essential to understand the specific needs of each plant during different growth stages. For light-loving plants like hibiscus, jasmine, and cactus, place them near a sunny window where they can receive ample sunlight. However, orchids and plants from the Araceae family prefer indirect light and should be placed in shaded areas. Woody plants that go dormant in winter, such as roses, pomegranates, crape myrtle, blue peaches, and conifers, can be kept in corners or aisles inside the house. As long as the temperature stays above 0°C, they should overwinter safely.
Watering should be reduced during winter, regardless of whether the plants are evergreen or deciduous. Deciduous plants typically need watering once a month, while evergreens can be watered every two months, but with a thorough soak. After watering, wait a couple of days before loosening the soil to allow the roots to breathe. Fertilization should also be limited in winter. A small amount of diluted fertilizer, like fermented rice water or a specialized liquid fertilizer, can be used for evergreens, but deciduous plants generally don’t require any fertilization.
Plants that bloom on new growth, such as roses, hibiscus, and poinsettias, should be pruned during their winter dormancy to encourage more shoots and flowers. For perennial vines, remove any overly dense, overlapping, or diseased branches to maintain shape and health.
Indoor air tends to be dry in winter, which can lead to yellowing leaves and leaf drop if not managed. Plants originally from southern climates—like orchids, monstera, palms, and begonias—require higher humidity. You can increase moisture by placing a tray of water nearby, misting the leaves, or covering the plants with plastic at night. Just make sure to ventilate regularly to avoid mold and dampness.
Additionally, keep plants away from heat sources like coal stoves to prevent soot and smoke damage. Before bringing plants indoors, it’s a good idea to spray them with a mixture of insecticides and fungicides to prevent pests and diseases. Common issues to watch for include leaf spot, aphids, spider mites, and leaf miners. Check evergreen plants for overwintering eggs or mites on leaves and in bark crevices. Also, inspect the soil for larvae or egg clusters to stop them from reappearing in spring. Regular checks and proper care during winter will help ensure your plants stay healthy and vibrant throughout the season.
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