Culture methods of Magnolia mandshurica

Purple magnolia is a unique plant in China, also known as magnolia, magnolia, wood pen, etc., famous ornamental flowers and trees in early spring, magnolia is a deciduous shrub of Magnoliaceae, full of purple-red flowers when flowering in early spring, quiet posture Shu state, unique style, suitable for planting in the front yard of the classical garden hall, can also be planted alone or scattered in the small courtyard, below we will take a look at the cultivation method of purple magnolia!

Growth Habits of Magnolia grandiflora

Purple Magnolia grows in Fujian, Hubei, Sichuan and northwest Yunnan of China. It is born at the edge of hillside forest with an altitude of 300~1600 meters. It is a traditional flower in China for more than 2000 years. It has been cultivated in major cities and introduced to European and American cities. It is light-loving, cold-resistant and can overwinter in the open. Love high dryness, avoid low humidity, planting land waterlogging easy to rot roots. Likes the fat US, the drainage is outstanding but takes the slightly acidic sandy soil, may also grow in the weak alkaline soil.

The propagation method of Magnolia grandiflora

1. Sowing and propagation: Purple reserve Jun seeds are harvested and sown after maturity from September to October. Before sowing, warm water of about 50℃ shall be applied for soaking seeds. Sowing shall be carried out by trenching and drilling. Fertile sandy loam shall be selected for seedling raising. After sowing, soil shall be covered with 2 cm, water shall be poured thoroughly, grass shall be covered, and soil shall be kept moist frequently. Generally, seedlings can emerge after about 2 months. After soil thawing in spring of the next year, they shall be planted separately.

2. Grafting propagation: 2~3-year-old Magnolia seedlings should be selected as rootstock when grafting, budding should be carried out in July ~ August, and cutting should be carried out in autumn. After cutting, cover all scions with soil. Remove the soil in late spring of the next year. Cut and graft in greenhouse. Store in wet sand after grafting. After healing, transplant before germination in spring of the next year.

3. Cutting propagation: Before cutting, dip the base of cuttings in rooting powder or soak them in 25ppm acetic acid solution for 20 hours, which can promote rooting and improve survival rate. The cuttings are collected from the annual branches of Magnolia grandiflora mother plant. The cuttings are 15 cm long and 2 leaves are reserved at the upper end. 1/3~1/2 leaves are cut off from each leaf. After cutting, shade and watering should be paid attention to.

4, ordinary layering: ordinary layering is best carried out in February to March, the base of the branches to be pressed into half depth, and then cut up a section, the middle card tile, and then gently pressed into the soil, do not break, with "U"-shaped thick iron wire inserted into the soil, fixed to prevent tilting, and then piled on the soil, spring layering to be sent out after the root bud can be cut off and planted.

5, high branch layering: before entering the ambush, select healthy and disease-free shoots (1.5~2 cm in diameter) on the mother plant, cut cracks in the lower part of the basin fork, and then cover it with bamboo tubes or bottomless pots, filled with culture soil, tied with strings outside, careful not to touch, often spray a small amount of water, keep it moist, new roots can be produced around May of the next year, and take down the planting.

Cultivation method of magnolia

1. Pot soil: Purple Magnolia likes loose and fertile acidic and slightly acidic soil. It can be mixed with rotten leaf soil and vegetable garden soil in equal amount as culture soil. The basin should be slightly deeper and larger, and some broken hard plastic foam blocks should be placed at the bottom of the basin to enhance ventilation and drainage and prevent rotten roots. Turn over the pot and change the soil once a year or every other year after flowering, and reserve 1/2 to 1/3 of the old soil.

2. Fertilization: Purple Magnolia likes fertilizer. Fertilization should seize the two key opportunities of February before flowering and May after flowering. Nitrogen, phosphorus and potassium compound fertilizer should be applied once every ten days. The former makes buds expand and flowers bloom, while the latter promotes more pregnant buds and more spring flowers. When the leaves fall in winter, apply a fertilizer mainly composed of phosphorus and potassium to enhance its cold resistance and overwintering ability.

3. Light and temperature: Purple Magnolia likes warm and humid environment with sufficient sunshine. It is cold-resistant. It is placed in sunny courtyard and roof garden. It grows strongly and luxuriantly in sunlight. Although it can grow under semi-shade conditions, it is thin and has few flowers. If it is too cloudy, it has no flowers. Cold, Beijing and its southern areas can be in the outdoor winter.

4, water and fertilizer: purple magnolia likes wet, afraid of waterlogging, so timely watering is very important. From the beginning of spring to flowering, the pot soil should be kept moist but not wet, after flowering, the pot soil should be kept moist but not waterlogged, and after falling leaves, the pot soil should be kept slightly moist but not dry. No drought or waterlogging should be allowed at any time, especially in rainy season.

5, pruning: purple magnolia roots sprout strong, if not need to reproduce, with the long cut, each pot can maintain 3 trunk. For too high and too long branches, can be cut short just after flowering when the leaves, wound healing ability is poor, after cutting to apply sulfur powder corrosion, unnecessary not to cut. After flowering, if there is no need to keep seeds for reproduction, the remaining flowers should be cut off with pedicles.