How do you grow delphinium? How to grow delphinium

The flowers of delphinium grass are beautifully shaped, like blue delphiniums standing on the branches, hence the name. for the ranunculaceae family.

1 and 2 years of herbaceous flowers, plant height 80 120 cm, flowering period of 5-6 months.

Delphinium grass likes a sunny and ventilated environment, likes sunlight and is resistant to semi-shade, likes high dryness but is not drought tolerant, resistant to cold and cold and avoid dampness and heat, and the soil quality is rich in humus and well-drained soil.

Sowing and propagating, spring and autumn sowing can be. Spring sowing in the northern region, sown in the greenhouse or live broadcast in March and April, germination temperature is 10 15, the seeds are refrigerated in the refrigerator for 2 3 days before sowing, and placed in a cool place after sowing. Delphinium germinates slowly, it takes about 15 to 20 days to germinate, the root system is straight, and there are fewer fibrous roots, so it is not resistant to transplantation, so the live broadcast effect is better.

If transplanting needs to be carried out when there are 3 or 4 true leaves, be careful not to damage the mound when transplanting, otherwise it will not be easy to survive. Autumn sowing takes place in mid-to-late August, overwintering in cold beds and planting in spring.

In terms of fertilizer and water management, basal fertilizer and phosphate fertilizer should be applied during planting, phosphorus and potassium fertilizer should be applied once a month during the growth period, and top dressing should be applied once during the vigorous growth period. Although delphinium likes a high and dry environment, it is not drought tolerant because of its small fibrous roots, but it should not be too wet, and a small amount of irrigation should be done at the seedling stage and growth stage.

Delphinium plants are straight, with many flower colors and long flower spikes, which are excellent materials for water's edge, forest edge and flower landscape, flower belt, and can also be used as cut flowers.

Delphinium, also known as: large-flowered delphinium, pigeon flower, baibu grass, chicken claw lian, etc. It is a perennial herbaceous plant of the family Ranunculaceae and delphinium.

Because of its unique flower shape, it resembles a swallow, so it is named. Delphinium is a straight-rooted plant with few fibrous roots, suitable for direct seeding, and transplantation needs to be carried with soil mass. Delphinium is more cold-tolerant, sun-loving, heat-sensitive, waterlogging, and is suitable for growing on sandy soils with deep and fertile soils.

Sowing can be done in both spring and autumn, and autumn sowing can take place in mid-September. The suitable temperature for seed germination is about 15, and when the soil temperature is below 20, germination takes about two weeks. The easiest way to keep the soil moist after sowing is to cover some grass and gradually remove the mulch after the seedlings emerge.

When the delphinium grows 2 true leaves, it can be transplanted in a small pot with soil, and then changed to a large pot when the seedlings grow up. Watering should be dry and wet, and a little more water should be properly watered during the flowering period to avoid excessive soil dryness. The suitable temperature of delphinium during the growing period is 20 25 during the day and 3 15 at night.

Flowering period 5 July.

Precautions: When changing pots, an appropriate amount of organic fertilizer can be applied as base fertilizer, and then according to the growth situation, apply 1 3 times a month to rot cake fertilizer water. Pay attention to the timely harvesting of seeds, so as to avoid cracking of the seeds and fruits after ripening.

If propagation is carried out in rametries, it can be carried out in spring and autumn. Generally, it is divided once every 2 to 3 years.

How to grow delphinium

Delphinium is also called cat's eye flower, pigeon flower, large-flowered delphinium, chicken foot lotus, Coptis chinensis, etc., which is a common ornamental flower in life. Delphinium is a straight-rooted plant, light-loving, cold-tolerant, heat-sensitive, and the reproduction is mainly based on direct seeding, and the main root system is required for transplantation.

1. Sowing: Delphinium can be sown in both spring and autumn, and if it is sown in autumn, it must be done in mid-September.

2. Maintenance: Delphinium must keep the soil moist after sowing, the easiest way is to cover some grass, and gradually remove the mulch after the seedlings emerge.

3. Change the pot: When the delphinium grows 2 true leaves, it needs to be transplanted in a small pot with soil, and then change the pot once when the seedlings grow up.

4. Watering: When changing the pot of delphinium, apply dry manure as base fertilizer, in order to prevent the plant from growing too tall, you can apply 5000ppm paclobutrazol once, or 1500ppm for a long time, once every half a month, until the bud. The watering of delphinium should be controlled between dry and wet, and the flowering period should be properly watered more to avoid over-drying the soil.

5. Fertilization: Apply eye fertilizer once every half month during the growth period of delphinium, and apply phosphorus and potassium fertilizer 2-3 times before flowering. The soil is kept moist during the flowering period of delphinium, which can prolong the flowering period. According to the growth status of delphinium, apply cake fertilizer water 1-3 times a month.

6. Height control: After the delphinium is repotted, paclobutrazol can be used to control the height of the plant, and the specific method is: apply paclobutrazol every 2 weeks.

7. Seed collection: The seeds of delphinium grass mature in August and September, because its seeds are the first to bloom and mature first, and the follicles will naturally crack after ripening, so they should be harvested in time to avoid scattering.

8. Pests and diseases: Delphinium grass often has black spot disease and root neck rot disease. When the delphinium grass is diseased, it is burned in a concentrated manner due to the timely removal of diseased plants, and sprayed with 50% methyl tobuzine wettable powder diluted 500 times for prevention and control.

The common insect pests of delphinium are aphids and noctuidae, which are sprayed with 10% insecticide essence emulsifiable concentrate diluted 2000 times.

Delphinium grass is a straight-rooted flower, with few fibrous roots, it is better to live seeding, it is not resistant to transplantation, if it needs to be transplanted, the seedling transplantation should be transplanted with soil balls when 2 true leaves, otherwise the survival rate will be affected. The pot should be small at the beginning of transplantation, and the pot should be changed again after the seedlings grow up, and dry manure should be applied as base fertilizer.

In order to prevent the plant from growing too tall, you can apply 5000ppm paclobutrazol once, or 1500ppm for a long time, once every half month, until the buds, watering to master the dry and wet, the flowering period should be properly watered, so as not to make the soil too dry. Depending on the growth status, apply cake fertilizer 1-3 times a month. During the growth period, apply eye fertilizer once every half month, and apply phosphorus and potassium fertilizer 2-3 times before flowering. During the flowering period, the soil is kept moist, which can prolong the flowering period. The seeds are ripe in August and September, because the seeds are the first to bloom and the follicles will naturally crack after ripening, so they should be harvested in time to avoid scattering.

Delphinium seeds are sown in the soil, covered with thin soil and watered once to keep the soil moist. 3. Maintenance: After sowing, keep the temperature at about 20 degrees, and improve the scattered light for delphinium.

1. Planting time

It is best to plant delphinium in early spring, when the weather has just warmed up, and the survival rate of delphinium will be relatively high after planting, and it will grow more rapidly. It can also be planted in autumn in August and September. It is colder in the north, so spring planting must be done after the weather has warmed up.

2. Planting method

Sprinkle the seeds of delphinium on the soil, then cover with a thin layer of soil, then water, keep the soil moist, put it in a ventilated environment for maintenance, the most suitable environment temperature for seed germination is about 15, it can germinate in about 2 weeks after planting, and wait until the small shoots grow a few leaves before transplanting.

3. Maintenance management

Planting delphinium grass needs to choose a loose and fertile soil type with good drainage, just planted delphinium grass needs careful maintenance, it is best to keep the soil in a slightly moist state, the temperature is more suitable at about 20, and it also needs to be properly exposed to sunlight, so that it can grow better.

1. Planting time: After the delphinium fruit is ripe, it can be harvested in June, take out the seeds and put them in a well-ventilated position to dry, dry and preserve, and plant them in the next year. Delphinium can be planted in spring and autumn, with autumn generally taking place in August and September, and if it is done too late, it will affect the speed of budding due to lower temperatures.

2. Choose seeds: When planting delphinium, you should choose large, full and healthy seeds, and the seeds are of sufficient high quality, so that the germination rate can be higher. Before sowing, soak the seeds in warm water for about 2 hours, then remove them and put them in a wet towel for germination.

3. Prepare the soil: If you plant in pots, you should choose loose, well-drained and humus-rich soil, which is more conducive to its growth. If you plant outdoors, choose a plant on high ground, if you plant in a depression, it may be soaked by rain during the rainy season, which will affect the growth of the plant.

Fourth, planting: when planting, you can use the method of direct sowing, and the seeds can be evenly sown into the soil. If it is too tight, the seedlings will be crowded after they grow, and they will not grow well due to lack of nutrients.

After planting, the temperature should be controlled, the germination temperature should be controlled above 15, if it is sown in autumn, it is necessary to keep it warm, and the seeds will germinate in about 15-25 days. Create a diffused and ventilated environment for it after planting, and don't let it get out of the sun. When the seedlings have 2-4 true leaves, they can be transplanted.

1. Temperature requirements. Delphinium has low requirements for temperature, it can tolerate high temperatures above 30 degrees in summer, and its growth is inhibited when the temperature exceeds 35 degrees. In autumn, when the temperature is below 10 degrees Celsius, the surface part of the ground dries up, and the roots can overwinter naturally, and when the temperature rises in the following spring, rotten will germinate again.

2. Soil requirements. Delphinium is not very demanding on the soil and grows well in fertile, moist, well-drained acidic soils. At the same time, in order to avoid soil compaction, you can add humus, coconut peat and well-decomposed manure and other organic fertilizers to improve the soil structure, increase soil fertility and ensure the nutrients required for the growth of delphinium.

3. Lighting conditions. Delphinium likes light, grows well under the condition of sufficient light, can tolerate shade slightly, and can meet the growth needs with bright scattered light during the growth period, and there must be sufficient light during the flowering period to ensure that the flowers are large and brightly colored. In order to cool down in summer, some pot friends use shade nets to block part of the sunlight to cool down, which is to quietly use shade nets with high light transmittance to avoid insufficient light in order to cool down.

4. Reproduction method. There are three methods of propagation of delphinium, seed sowing and dividing and cuttings, and the temperature is required to be stable above 15 degrees when seed sowing, so as to avoid the death of seedlings due to low temperature or unconstant temperature in early spring. Wait until there are 4-6 leaves before transplanting, and be careful not to hurt the main root system when transplanting.

The dividing method is generally carried out when the germination begins in early spring or when the physiological activity of the plant is weakened after the surface is partially yellowed in autumn, and it is generally possible to divide the plant once every two or three years. The cuttings method is carried out in the spring, and the top ten centimeters of the new shoots are cut off as cuttings, which can take root and survive in about three weeks, and in order to improve the success rate of cuttings, the cuttings can be treated with rooting powder.

1. Delphinium seeds can be sown in spring and autumn

2. Select high-quality seeds for sowing