Can be planted in the south, cold-resistant varieties can also be planted in the Yellow River basin, but the cold areas in the north should be planted indoors. It can be planted after defoliation and before germination in spring. In order to improve the survival rate, we should avoid damaging the root system and transplant with soil balls. The ground should be planted in the leeward and sunny places. Potted soil with 3 parts humus soil, 3 parts garden soil, 2 parts river sand and 2 parts decomposed fertilizer was selected.

Watering after planting 1 time. Keep it in a cool place, and move it to the sun for normal management after the growth resumes.

2. The requirements of plum blossom for light and temperature

I like warmth and plenty of light. Except for apricot varieties, it is generally resistant to-10℃ except -25℃. High temperature resistance, can grow at 40℃. It grows best in the area with annual average temperature 16 ~ 23℃. Very sensitive to temperature, it blooms when the average temperature reaches -5 ~ 7℃ in early spring.

Step 3 water and fertilize plum blossoms

Pay attention to watering during the growth period, and the soil in the basin should always be moist, so as not to accumulate water, be too wet or too dry. The principle of watering should be mastered. Generally speaking, water less when the temperature is low on cloudy days, or water more. You can water it twice a day in summer, once a day/kloc-0 in spring and autumn, and dry it thoroughly in winter.

Fertilization is also reasonable. Before planting, base fertilizer should be applied and a small amount of potassium dihydrogen phosphate should be added. Before flowering, 1 potassium dihydrogen phosphate and 1 cake fertilizer should be applied to supplement nutrition. In June, 1 times compound fertilizer can be applied to promote flower bud differentiation. After defoliation in autumn, apply organic fertilizer 1 times, such as decomposed manure.

4. Plum blossom shaping and pruning

Pruning pruning time can be carried out within 20 days after flowering. Give priority to with natural tree, cut off cross branches, erect branches, dead branches, too dense branches, etc. And cut short the side branches to promote the flowers to bloom.

Planting method of potted plum blossom

Potted plum blossom is mainly cultivated by grafting, and cuttage and bud grafting are commonly used. Peach or apricot as rootstock. Apricot red skin grafted with red plum, with harmonious skin color.

1, splicing

Cut off one or two-year-old rootstocks, and cut off the upper part of rootstocks at the end of March (cold room) or early April (open field) 3-5 cm from the ground. Scion adopts annual robust branches, cut into 5-6 cm long, and leave at least 3 buds. The outer sides of the last bud are cut obliquely to form a duckbill shape. Open a 3 cm long joint on one side of the rhizome.

Insert the scion into the incision of the rootstock, make them closely combined, and then tie them tightly with plastic film tape. Or bonded with polyester tape. Finally, put a small plastic bag on the scion, and the mouth of the bag is tied under the joint, so you can often look through the film. After survival, unbind.

Step 2 bud grafting

Bud grafting is carried out from August to September, and "D" grafting is generally adopted. First, cut a knife at the position of 1- 1 .5 cm above the scion bud, and then cut it down at the position of 1 cm below the bud, so that the cut wood inside the bud cortex can be gently peeled off (it has slightly sprouted with wood in recent years).

Cross-cut the rootstock 5 cm from the soil surface, then cut it down into a D shape from the center of the incision, then gently peel off the cortex, and insert the prepared scion into the cortex of the D-shaped mouth. The bud grafting should be firmly attached, the upper end should be closely combined with the upper end of the "D" mouth of the rootstock, and finally tied tightly with plastic film strips or polyester tapes.

A week later, check the survival situation. If the petiole falls at the touch and the bud is green and full, it means survival. The next spring, the top of the rootstock was cut 5-6 cm upward from the joint, and the scion germinated rapidly. Pay attention to cutting roots and buds in the future. When changing pots or planting in the pots above, you can plant them deeply downward, so that the interface will drop as much as possible and be bound according to the growth situation to form a beautiful shape.

3. Preparation of basin soil

Mix13 of rice bran ash with 2/3 of river mud, add human excrement and urine, mix evenly, expose to the sun, and sieve for later use. The bottom of the basin is padded with tile stones to facilitate drainage, then filled with coarse soil, planted with plum piles, and compacted with buried soil.

4, watering time

It is not advisable to water the basin; Water once after 3~4 days; Water once a day after 7~ 10; After survival, water 1~2 times a day from May to August. The soil should not be too wet or flooded.

5, fertilization

Plum blossoms don't like being fat. When the new shoots grow to about 5 cm, 1 times fine bone sesame paste can be applied to make the branches grow healthily. There should be enough fertilizer and water when releasing leaves. Generally, dilute liquid fertilizer should be applied every month 1 time to promote lush foliage. When the branches grow to 20-25 cm, control the fertilizer and water. Top dressing twice in late summer and early autumn to promote flower bud differentiation. After each fertilization, attention should be paid to watering and loosening the soil in time to keep the soil loose, which is beneficial to root system development.

6. Temperature and lighting

Meihua likes sunny and well-ventilated environment, and is not tolerant of long-term shading. Only by giving them enough light to get the conditions of photosynthesis, can they get enough nutrition, grow sturdily and produce many big bright flowers.