How to use fertilizer in spring?

As potted plants spend the winter indoors, their growth potential is naturally reduced. During this time, new shoots, tender leaves, young stems, seedlings, and roots become more fragile. Applying concentrated or raw fertilizers at this stage can easily cause fertilizer burn, damaging buds and new growth. Therefore, when fertilizing in early spring, it's essential to follow the principle of "using small amounts of diluted fertilizer and gradually increasing the dose." It's best to apply well-composted, diluted fertilizers, which are not only effective but also help improve soil quality. The frequency should start low and increase over time—usually once every 10 to 15 days is sufficient. Fertilization should be done on a sunny day in the evening, as this allows the plant to absorb nutrients more effectively without the risk of sunburn. When fertilizing, there are four key points to keep in mind: 1. Avoid watering 1 to 2 days before fertilizing to allow the soil to dry slightly, which helps the plant better absorb the fertilizer solution. 2. Loosen the soil before applying fertilizer to ensure the solution can penetrate deeply. 3. Apply the fertilizer around the edge of the pot, avoiding direct contact with the foliage and the base of the stem to prevent damage. 4. Water the plants the next morning after fertilizing and loosen the soil to promote good air circulation and healthy root development. For young plants that have just emerged or those with underdeveloped root systems, it’s best to avoid fertilizing until they are stronger. In addition to fertilizing, watering in early spring should be carefully managed. Avoid overwatering, as most plants are just beginning to wake up from dormancy and don’t require large amounts of water. With cooler temperatures and lower evaporation rates, excessive moisture can lead to poor soil aeration, root rot, leaf drop, and even plant death. In warmer regions like Hunchun, where temperatures rise faster and evaporation increases, watering can be more frequent. In general, spring watering should start light and gradually increase as the weather warms and plants grow. The key principle is “don’t overwater, don’t let the soil dry out completely, and water thoroughly when needed.” Always avoid leaving water standing in the pot. Watering should take place before noon, and after each session, loosen the soil to maintain good ventilation. In areas with dry spring climates and frequent wind, misting the leaves and branches can help increase humidity and support plant health.

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