How to care for potted white magnolia
Today's sharing: Introduction to home cultivation of white magnolia, how to care for potted white magnolia. Next, the editor will introduce to everyone.
White magnolia is an evergreen tree that prefers warm and humid conditions, is not drought-resistant or cold-resistant, with flowers as white as jade and a fragrance that fills the air. The key to making potted white magnolia bloom more, have larger flowers, brighter colors, fragrant flowers, and a longer blooming period is to strengthen the management of the flowering period. The author has over 20 years of experience in growing potted white magnolia and now shares the technical introduction of potted white magnolia flowering period management for flower enthusiasts to refer to.
First, remove old leaves and pinch the tip. The white magnolia I raise is moved outdoors between the Spring Equinox and Qingming every year, choosing overcast or cloudy days to do so. After moving outdoors, it takes 2 to 3 days for the potted flowers to adapt to the outdoor environment before starting to remove the old leaves of the plant, leaving only a few tender leaves on the tips to promote new growth. After each batch of flowers has bloomed, a small number of old leaves should also be removed to promote new branch growth and flower bud formation. During the growth of white magnolia, it is also necessary to pinch the tip frequently to control the apical dominance and promote the growth of lateral branches.
Second, supplement sufficient nutrients. This is an important aspect of flowering period management. White magnolia is a flowering plant that loves fertilizer, especially since it has a long blooming period and many flowers. Therefore, it is necessary to supplement nutrients regularly and in a timely manner to achieve more flowers, larger flowers, brighter colors, and fragrant flowers. In addition to applying enough base fertilizer when potting, it is also necessary to apply organic liquid fertilizer rich in phosphorus and potassium every 5 to 7 days during the flowering period from May to October, such as decomposed cake fertilizer. The principle of fertilization is to apply thin fertilizer frequently, or start with a lighter solution and then gradually increase the concentration. Never apply raw fertilizer, as it may burn the roots. Also, apply foliar fertilizer every 7 to 10 days using a 0.5% plant growth hormone and a 0.3% potassium dihydrogen phosphate solution.
Third, water appropriately. White magnolia has a fleshy root system that requires water but is afraid of waterlogging. Therefore, water once a day from early summer to late autumn to keep the soil moist. However, during the hot "dog days of summer," water twice a day, early in the morning and in the evening, and also spray water on the leaves and the ground around the pot to increase humidity. When using tap water to water white magnolia, be careful to prevent soil alkalization. If the leaves turn yellow, apply iron sulfate solution or 0.7% to 0.8% vinegar solution to the roots. You can also spray a 0.3% to 0.4% vinegar solution on the leaves, which works well. During the rainy season in spring, prevent waterlogging in the pot, as it can cause root rot.
Fourth, provide suitable lighting. White magnolia is a positive flower that requires plenty of sunlight. During the growing period, it should be placed on a sunny balcony or in a sunny area for maintenance, especially during the flowering period. Daily sunlight should not be less than 6 hours. If white magnolia is maintained in a shaded area, it will only grow leaves and not flowers, or will bloom very few flowers, with thin, long branches, pale leaves, thin leaves, and no luster, which is very detrimental to its growth. However, during the hot and high-temperature "dog days of summer," it should be moderately shaded, avoiding direct sunlight from 12 to 4 pm, as well as the high-temperature radiation from brick walls or concrete surfaces. During this time, not only should water be sprayed on the plant to cool it down, but also water should be poured or sprayed on the ground to dissipate heat and increase humidity, artificially creating a suitable environment.
Fifth, prevent and control diseases and pests. During the management of white magnolia, pay attention to preventing and treating yellowing disease and root rot, as well as (T-J) disease. If diseases are found, remove the diseased plants and leaves promptly, and spray the leaves with a 50% carbendazim solution at a concentration of 500 to 800 times, or use a 70% thiophanate-methyl solution at a concentration of 800 to 1000 times for control. The main pests that damage white magnolia are aphids and scale insects. Aphids damage the buds and flower buds and can be controlled with swift kill, or by spraying a 500-fold solution of laundry detergent, or by using a cotton swab dipped in laundry detergent solution to remove the pests, followed by rinsing the branches and leaves with clean water. Scale insects can be controlled by spraying a 0.3% to 0.4% vinegar solution or by removing them by hand.
The above introduces how to care for potted white magnolia for reference.