Soil acidification can rejuvenate azaleas
Plant management tips, knowledge about flower care, especially about azaleas, soil acidification can rejuvenate azaleas, details are as follows:
Azaleas in pots may show signs of decline after a few years, such as yellowing of leaves, stunted growth, increased number of withered branches, no new roots, no new leaves, reduced flowering, smaller flowers, dull flower color, short blooming period, prone to withering, and even no flower buds. The main reason is soil alkalization, which is no longer suitable for azalea growth. Therefore, soil acidification is an effective way to rejuvenate azaleas. The specific methods are as follows:
Gently lift the declining azalea plant along with the potting soil from the pot, use a sharp knife to evenly remove about 1/4 of the soil from the top, bottom, left, and right, removing the intertwined declining roots. Then, mix 5 parts of decomposed leaf soil, 2 parts of pond mud, 2 parts of peat soil, 1 part of fine river sand, and 25 to 30 grams of ferrous sulfate thoroughly to make new nutritious soil. Plant the treated azalea plant in the potting soil and place it in a well-ventilated and shady place, water once a day, and spray the leaves once a day. It will recover growth in about 8 to 10 days.
After the azalea recovers growth, apply a high-quality organic fertilizer, high-efficiency phosphorus and potassium fertilizer, and iron fertilizer every 15 to 20 days. Each time, apply 25 to 30 grams of decomposed and odorless cake fertilizer, 15 to 20 grams of potassium dihydrogen phosphate or high-efficiency bio-phosphorus potassium fertilizer, and 5 to 10 grams of ferrous sulfate, diluted in water and watered. In addition, spray a mixture of 0.1% urea, 0.1% magnesium sulfate, 0.2% potassium dihydrogen phosphate, and 0.1% ferrous sulfate on the leaves every 10 to 15 days. This way, after two to three months of care, lush new roots will grow, followed by the sprouting of buds, blooming of flowers.
The above is a specific introduction of how soil acidification can rejuvenate azaleas, hoping to bring some floral knowledge to flower enthusiasts.