Can Lagerstroemia indica seeds be planted in May?

It blooms after midsummer, and the flowering period is September. Generally, the soil can be cultivated, and fertilizer is not needed during the growing period. Apply dilute liquid fertilizer 2 ~ 3 times, but it is not advisable to use too much fertilizer. It is enough to grow strong with green leaves, not too long, because mimosa is mainly an interesting foliage flower, and it is better to be smaller. The planting technology of mimosa is simple and the management is extensive. The requirements for climate, sunshine and soil are not strict, but the fertile and loose sandy loam is better, and the warm and humid environment is better. Plant spacing is 25 ~ 30cm, and soil loosening, weeding and watering should be done in time. Potted indoors, watered for two to three days in summer 1 time. Fertilize every month 1 time. If you don't want the plant shape to be too big, you should reduce the amount of fertilization or even don't need fertilization.

In the growth period of mimosa, it can be watered in coordination, and the decomposed dilute liquid fertilizer can be applied every 10 day (3 ~ 4 times). As a potted ornamental flower, it is easy to move into the sunny place indoors and can safely overwinter at room temperature of 0 ~ 12.

Moisture: like to be wet, and water it every day 1 time during the summer growth period. Fertilizer: topdressing every half month at seedling stage 1 time. If you don't want the plant shape to be too large, you should reduce the amount of fertilization.

Soil: The soil is required to be deep, fertile and moist.

Temperature: not cold-tolerant, like warm climate, plants will die in winter.

Lighting: I like plenty of lighting and have a little tolerance for semi-shade.

Breeding method: sowing and breeding. Sowing from late March to early April, the seedlings grow slowly and can be sown when the height of the seedlings is 7 ~ 8 cm.

Generally speaking, gypsophila paniculata has strong vitality, fast rooting, long-distance transportation and transplanting resistance, and the survival rate is above 95%. Cutting propagation is generally used. In spring, about 65,438+00 cm of new branches are cut off, 3-4 branches are sprayed with water in the sand bed to cultivate about 65,438+05 natural roots, and then transplanted into the soil for more than 20 days to cultivate large seedlings.

Drunk butterfly

Summer and autumn are its peak seasons.

Humidity: I like high humidity air. If the air humidity is too low, it will accelerate the withering of a single flower. I'm afraid of rain, so I need to keep my leaves dry at night. The optimum air relative humidity is 65 ~ 75%.

Temperature: heat-resistant, not frost-resistant.

Lighting: I like sunshine, but I have a little tolerance for semi-shade.

Fertilizer and water: Like other grass flowers, there are more requirements for fertilizer and water, but it is required to follow the principle of "light fertilizer and frequent application, a small amount of nutrition" and keep the leaves and flowers dry at night after fertilization.

crape myrtle

Generally, the seeds are sown in March-April, outdoors in the open field, and the seeds are evenly scattered on the flat seedbed. Sprinkle about 2-3 capsules every 3-4cm. After sowing, cover with fine soil about 2 cm thick. After about 10~ 14 days, most seeds germinated. Make sure the soil moisture after coming out. After the seedlings grow two pairs of true leaves, in order to ensure that the seedlings have enough growth space and nutrient area, we can choose to interplant the nursery after the rain, so that the air between the seedlings can circulate and the sunshine is sufficient. During the growing period, we should strengthen management, topdressing thin fertilizer 2-3 times in June-July, preventing drought in summer, watering frequently, and keeping the nursery moist, but remember not to overdo it. The height of seedlings can reach 50 ~ 70 cm in winter. Plants that grow well can bloom in the same year. After defoliation in winter, trim the side branches and open the flower branches in time. Transplanting in early spring of the following year.

Lagerstroemia indica likes sunshine, so it must be placed in a sunny place outdoors during the growing season.

Pot soil should be kept moist in spring and winter, and watered once every morning and evening in summer and autumn. In case of drought and high temperature, the daily watering frequency can be appropriately increased, and river water, well water, rainwater and tap water should be stored for 2 ~ 3 days.

Too much fertilization on potted Lagerstroemia indica is easy to cause white branches and leaves. If the lack of fertilizer leads to thin branches and yellow leaves, the whole plant will grow weakly, with few or no flowers. Therefore, it is necessary to apply fertilizer regularly, apply more fertilizer in spring and summer peak season, and apply less fertilizer after autumn. There is no need to apply fertilizer when winter enters the dormant period. Don't fertilize at noon in rainy days and summer when the temperature is high. Fertilization concentration is applied every 10 day from beginning of spring to beginning of autumn, topdressing every half month after beginning of autumn, and fertilization is stopped after beginning of winter.

Potted Lagerstroemia indica is replaced every 2-3 years, and 5 parts of loose mountain soil, 3 parts of pastoral soil and 2 parts of fine river sand are mixed to make culture soil. When changing pots, organic fertilizers such as bone meal and bean cake powder can be used as base fertilizer, but the fertilizer can't directly contact the root system, so as to avoid damaging the roots and affecting plant growth.

light purple

If you can't stand the high temperature and humidity, you will die if you are waterlogged for a long time. When planting outdoors, be careful not to let the rain directly rain on the plants. After May, it is necessary to move the place out of direct sunlight, increase ventilation to reduce the ambient temperature and keep cool, so as to spend the hot summer safely. Pay attention to sunshine, moisture, temperature and patience.

1. Soil: Suitable for weak alkaline or neutral sandy soil. Special attention should be paid to the selection of substrates with good drainage, which can be mixed with 1/3 pearl clay, 1/3 vermiculite and 1/3 sphagnum moss. If it is cultivated in the open field, pay attention to the drainage of the soil, and raise the mound into a border before planting.

2. Watering: Lavender doesn't like to keep water in its roots. After the first watering, water should be supplied when the soil is dry. The surface medium was dry and the inside was moist, and the leaves wilted slightly. Water in the morning, avoid the sun, and don't splash water on leaves and flowers, otherwise it will rot and breed pests and diseases. Continuous humid environment will make the roots grow poorly, there is not enough air to breathe, and even the whole plant will die suddenly. This is often the reason for the failure of lavender cultivation.

3. Illumination: Lavender is an all-day plant, which needs sufficient sunshine and a suitable humid environment. The environment that can give full sunshine is better, and it can grow in half sunshine, but there are few flowers. In summer, at least 50% sunlight should be blocked, ventilation should be increased, and the ambient temperature should be lowered, so that although the growth is weak, it will not die. Lavender can grow well on the flat ground in winter, so it should be cultivated in sunny places.

4. Temperature: Lavender is semi-heat-resistant, so it is cool. It likes warm in winter and cool in summer. The suitable growth temperature is 15 ~ 25℃, and it can grow at 5 ~ 30℃. Limit temperature: above 35℃, above 38 ~ 40℃ for a long time, and the top stems and leaves turn yellow. In northern winter, when the temperature is lower than 0℃ for a long time, the seedlings begin to hibernate, during which the seedlings can tolerate the low temperature of -20 ~-25℃.

5. Fertilization: When fertilizing, you can put bone meal as the base fertilizer (once every three months) in the pot soil, and then apply a fertilizer with higher phosphorus fertilizer, such as Huabao No.3 (20-30-20). Apply light fertilizer.

6. Pruning: Lavender flower essential oil is the most abundant, and it is mainly used in flowers or inflorescences. In order to facilitate harvesting, some small inflorescences in the early stage of cultivation may wish to be leveled with scissors, and the newly grown inflorescences are of the same height, which is conducive to one-time harvesting. Some varieties can be as high as 90 cm, and this method is also used to make plants low, promote more branches and flowers, and increase harvest. Pruning must be carried out after flowering, and the plant can be pruned to 2/3 of its original size, so that the plant type will be stronger and conducive to growth. Pruning should be carried out in cold seasons such as spring and autumn, generally in spring, and pruning in autumn will affect cold tolerance. When pruning, be careful not to cut off the lignified part, lest the plant weaken and die.

light purple

Cultivated in an open field, it is often used as a landscape tree in the garden. Choose a place with abundant sunshine, loose soil and good drainage when planting. Generally, bare roots are planted before germination in spring, and the spacing between plants is 2-3 meters, which can be adjusted according to the configuration requirements. When planting, choose more 2 13-year-old seedlings. The planting hole is 70-80 cm in diameter and 50-60 cm in depth. Apply fully decomposed organic fertilizer1000g and bone meal100-600g to each hole, and fully mix with soil as base fertilizer. Water every 10 day after planting 1 time, and water continuously for 3-5 times. After each watering, loosen the soil and keep it moist to increase the soil temperature and promote the rapid growth of new roots. After planting 3-4-year-old seedlings, the branches on the ground should be strongly cut, that is, cut 30 cm above the ground, and strong branches will grow soon after cutting, so that the crown will be full and flowers will flourish in the next year. The daily management work is relatively simple. Pruning is generally carried out before germination in spring, mainly to cut off weak branches, over-dense branches, dead branches and diseased branches, and reasonably keep good renewal techniques. If you don't leave any seeds, cut off the remaining ears after flowering. Generally, no chemical fertilizer is applied or only a small amount of chemical fertilizer is applied. Do not apply too much chemical fertilizer, otherwise it will cause excessive growth, thus affecting the formation of flower buds and reducing flowering. However, after flowering, some phosphorus, potassium fertilizer and nitrogen fertilizer should be applied, each plant should not exceed 75 grams of phosphorus and potassium fertilizer, and then 25 grams of nitrogen fertilizer can be added. If manure or compost is applied, it should be fully decomposed and evenly mixed with soil, and about 500 grams should be applied to each plant. Irrigation varies from region to region. In Beijing and North China, April-June is the season of drought and high temperature, and it is also the season when lilacs grow vigorously and bloom. Therefore, they should be watered 2-3 times a month, immediately cultivated and moisturized. After entering the rainy season in July, attention should be paid to drainage and flood control. To 1 1 in the middle of winter, it is necessary to replenish enough chilled water.

Is this ok?