How to grow magnolia trees well
About these do you know? The experience on how to grow magnolia trees well and the cultivation methods of potted magnolia plants in terms of green plant maintenance will be introduced comprehensively next.
White magnolia is an evergreen tree that prefers warm and humid conditions, is not cold-resistant or drought-resistant, and its flowers are fragrant and the color is as white as jade.
The key to making potted white magnolia flowers large, numerous, fragrant, colorful, and with a long blooming period is to strengthen the flowering management of the potted plants.
1. Ensure suitable lighting
White magnolia is a sun-loving flower and requires ample 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 bloom, or bloom very few flowers, with thin, long branches, pale leaf color, thin leaves, and no luster, which is very unfavorable for its growth.
However, during the hot and high-temperature "dog days" of summer, moderate shading is required, with direct sunlight avoided from 12 to 4 pm each day, and avoid high-temperature radiation from brick walls or concrete surfaces.
At this time, not only should the plant be sprayed with water to cool down, but also water should be poured on the ground or sprayed to cool and dissipate heat, increase air humidity, and artificially create a suitable environment.
2. Watering in a timely manner
White magnolia has a succulent root, which requires water but is afraid of waterlogging.
Therefore, from early summer to late autumn, water should be given once a day to keep the soil moist, but during the hot "dog days" of summer, water should be given twice a day, early in the morning and evening, and water should also be sprayed on the leaves and the ground around the pot to increase air humidity.
When using tap water to water white magnolia, be careful to prevent soil alkalization. If yellowing of the leaves is observed, apply a solution of ferrous sulfate or a 0.7% to 0.8% vinegar solution to the roots. A 0.3% to 0.4% vinegar solution can also be sprayed on the leaves, which is also effective. During the rainy season in spring, the pot should not accumulate water, otherwise, the roots will rot.
3. Supplementing sufficient nutrients
This is an important aspect of flowering management. White magnolia is a flower that loves fertilizer, as it has a long flowering period and many flowers. Therefore, timely and regular nutrient supplementation is necessary to ensure many flowers, large blooms, colorful flowers, and fragrant flowers.
In addition to applying enough base fertilizer when potting, an organic liquid fertilizer with a focus on phosphorus and potassium should be applied every 5 to 7 days during the flowering period from May to October, such as decomposed cake fertilizer. The principle of fertilizing is to apply thin fertilizer frequently, or start with a lighter solution and then increase the concentration, never applying raw fertilizer, as it can burn the roots. Also, every 7 to 10 days, a foliar application of 0.5% plant growth hormone and 0.3% potassium dihydrogen phosphate should be done.
4. Pruning leaves and pinching
The time for white magnolia to be moved outdoors is every year between the vernal equinox and Qingming. Choose a cloudy or overcast day to move the plant outdoors, and after moving, allow the potted plant to adapt to the outdoor environment for 2 to 3 days before starting to remove the old leaves, leaving only a few tender leaves at the tips to promote new growth.
After each batch of flowers has finished blooming, a small number of old leaves should also be removed to promote the growth of new branches and the formation of flower buds. During the growing period of white magnolia, it is also necessary to pinch the tips to control top dominance and promote the growth of lateral branches.
5. Disease and pest control
The main pests of white magnolia flowers are aphids and scale insects.
Scale insects can be controlled by spraying a 0.3% to 0.4% vinegar solution or by manually removing them.
Aphids damage the tender buds and flower buds, which can be controlled with a rapid insecticide or a 500-fold solution of detergent, or by using a cotton swab dipped in a detergent solution to stick to and remove the pests, followed by rinsing the branches and leaves with clean water.
In the management of white magnolia, in addition to preventing and treating yellowing disease and root rot, anthracnose disease should also be prevented and treated.
If any disease is detected, the diseased plants and leaves should be promptly removed, and a 50% carbendazim solution of 500 to 800 times the concentration should be sprayed on the leaves, or a 70% thiophanate-methyl solution of 800 to 1000 times the concentration should be used for control.
The above-mentioned explanation on how to grow magnolia trees well and the cultivation methods of potted magnolia plants hope to bring a little help to your life!