Answer When is dahlia planted

It can be planted all year round, and as long as the temperature is not particularly cold, it can basically meet the needs of growth. However, in order to improve the survival rate, the time can be selected in March and April every year, and the temperature gradually rises in the spring, the light is also sufficient, and the growth momentum is very strong, at this time planting is the best, which can improve the survival rate and promote the later growth. It can also be selected in the autumn from September to November, which is also a period of rapid growth, which can also promote the rapid growth of dahlias.

1. Select the bulbs:Before planting dahlias, it is necessary to select suitable bulbs, which are of large quality, relatively full and full, and not polluted and squeezed by the outside world. <>

2. Handling bulbs:Remove the outer skin of the bulbs, then go to the pharmacy to buy carbendazim, mix it with water to make a solution, put the bulbs in it to disinfect and sterilize, and remove possible bacteria or eggs. <>

Dahlia planting time.

Dahlias are suitable for planting in mid-March in early spring, but the specific planting time varies depending on the ambient temperature in different regions. The planting time of southern dahlia: the temperature of dahlia seeds is about 20 degrees when sown, and 15-25 degrees is suitable for planting.

Ornamental plants suitable for temperate cultivation are optimally grown at a temperature of 15 to 25 degrees.

Dahlia origin.

Dahlia is native to the Mexican highlands. It has thick, fleshy roots, opposite leaves, oval lobes and thick, blunt teeth. These flowers grow at the tip of a wide stalk and they are brightly colored.

Dahlia cultivation method.

1.Seed treatment: When planting dahlias, disinfect the seeds, wash them, and then soak them in warm water for about 30-50 minutes.

Pick them up and place them in a cool, ventilated place to dry. 2.Substrate Requirements:

When planting dahlias, you should choose sandy soil that is rich in nutrients. Before planting, the soil should be turned deeply, and garden soil, humus soil, and river sand should be selected. Add an appropriate amount of superphosphate solution to the soil and mix well.

3.Planting and field planting: Greenhouse cultivation is carried out in March-April in spring.

The seeds are evenly sprinkled in the soil with a thickness of about 2 3 times the diameter of the seeds. The gap in the middle is ventilated and light, and after a week, true leaves grow.

Key points of dahlia planting management.

Temperature management: If dahlias want to bloom early in early spring, they can be grown in a greenhouse. The daytime temperature must be kept at about 25, and more than 25 must be ventilated and cooled.

Timely fertilization: Dahlia is a fertilizer-loving plant, and the nutrients are sufficient when planting, otherwise it is easy to cause its flowers to become smaller. During the growing season, cake fertilizer can be applied 4-5 times.

Dahlia planting time.

Planting time: The planting time of dahlia is affected by temperature, the planting time is different in different regions, and the planting time is different in the spring in early to mid-March, and the maintenance temperature should be kept above 10.

Origin: The origin of dahlia is located in the Mohao Xige Plateau, China's introduction began more than 400 years ago, and the planting time in China is relatively long.

Dahlia growth cycle.

The temperature of dahlia sowing needs to be kept at about 20 degrees, and the seeds will generally germinate in 4-5 days, and after the real leaves have grown, they can be planted, and they will generally bloom after one to two years.

Dahlia planting costs and profits.

There are many varieties of dahlias, it is not only used for ornamental but also has a certain medicinal value, as a world famous flower, its purchasing power is still very strong, the prospect is good, and the purchase of planting is generally five yuan a plant.

Tips for Dahlia planting techniques.

1. Dahlias should receive sufficient light after the seedlings germinate to prevent growth, but avoid exposure to strong light, otherwise the plants are easy to be burned.

2. In the whole growth and development process of dahlias, it is not advisable to make the humidity of the cultivation medium too large, and it is best to keep the semi-dry state, otherwise it is easy to cause root rot and cause poor plant growth.

3. Dahlia is a short-day flower, and the purpose of regulating the flowering period can be achieved by controlling the sunshine hours during the cultivation process.

4. Dahlia likes fertilizer, but avoid excessive use, if excessive nitrogen fertilizer is applied, it will lead to excessive vegetative growth, delayed flowering, and weakened plant disease resistance, so balanced fertilization is very important.

A long and warm spring would be the best time to plant.

The planting time of dahlias varies depending on the propagation method. Dahlia is mostly planted in March and April in spring. Dahlia cuttings are planted in June-August; The hotbed of dahlias is sown in mid to late March, and the flower bed varieties are sown in the open field in late April, and the seeds are scattered on the soil.

Dahlia likes cool climate, 10 25 is the best, in early spring for early flowering during the day temperature is kept at about 25, more than 25 must be ventilated and cooled, at night below 10 to increase the greenhouse temperature, high temperature season should take cooling measures.

1.Dahlias should be planted in the spring, between March and April, when the climate is suitable for germination and growth, and it will be easier to manage.

2.Before planting, the seeds should be treated, the seeds should be cleaned, and then soaked in warm water to allow them to absorb enough water.

3.The substrate should be soft, breathable and fertile.

4.After preparation, the seeds are sprinkled directly on the surface of the soil, covering the thin soil, and the seedlings will emerge soon if the environment is suitable.

5.After the seedlings are ready, they can be transplanted and planted.

Dahlia seed propagation is suitable for varieties used in scenic spots, flower fields, etc., and most of the seeds that are matured and harvested after the autumn coolSowing is in February-May of the following yearHowever, in different provinces and regions, the sowing time of dahlias is not fixed.

1. Land selection and land preparation: select the land with deep cultivated layer, loose and fertile, flat terrain and well-drained fields, apply 125 kg of superphosphate per mu as base fertilizer before deep turning, add 50% of the Yanong kilograms, carry out soil disinfection, turn the soil deep about 15 cm, and then arrange the rake flat, make the high furrow or flat furrow 2 meters wide, 20 cm deep ditch, and open the internal and external "three ditches" to facilitate drainage.

2. Cutting method: usually from June to August, the side buds grow to 15 to 20 cm, combined with the removal of the side buds with cutting and sowing. Cuttings need 3 buds, leave the upper 2 buds, cut the 3rd bud to the base of the leaf to remove the leaves, insert deep in the soil and the second bud, water thoroughly, and stand up with 50% shade net double shade.

On sunny days, water once in the morning and evening, water continuously for half a month, keep the soil moisture at 90%, take root after 3 weeks, the survival rate is very high, and it can bloom in the autumn of that year.

3. Post-planting management: After the cuttings are lived, the saturated leaching solution of compound fertilizer is applied once in combination with cultivating weeding, pre-flowering and post-flowering, and 400 ml of mother liquor is added for extra-root topdressing every 1 back sprayer (about kilogram). It is not advisable to cultivate the roots of dahlias in depth after the roots, so as not to damage the roots and prevent grass damage.

Because the plant is juicy and soft, it must stand up to avoid breaking the stems and leaves, and the seedlings of small floret varieties are 15 cm high when the top is set, so that the plant is short and strong and flowering, and the flowers are removed in time after the flowering, which can prolong the flowering period.

The outdoor flowering period of dahlia is May and June and September November, and the midsummer season is dormant and does not bloom, and it opens in the spring of 2 June in the south of our country. Dahlias are popular for their long flowering period, which blooms continuously from autumn to spring, and each flower lasts for 1 month, and the flowering period lasts for half a year.

The approximate time for planting it is when other vegetables are planted in the same year, which is the best season to grow it, that is, it is best to plant it in spring.

1. The right temperature It prefers cool weather, so it does not have too high requirements for temperature, usually it can grow well at 5 to 35 degrees, and its adaptability is very strong, but the temperature is best between 10 and 25 degrees. In addition, if the temperature exceeds 30 degrees, it will go into hibernation. When the temperature drops below 0 degrees, its branches will wither, and its tubers can be dug up and buried in sand to be replanted the following year.

2. The right growing environment It likes light very much, so it is necessary to choose a place with a long light time for planting, and it is not drought tolerant and afraid of moisture, when it is in the south, it always rains more, so when choosing to plant, you must choose loose and well-drained sandy soil.

1. Divide planting If you use the method of dividing it to plant it, you must first take out its tuber roots in March and April every year, and then separate the roots, and each root needs to have 2 to 4 top buds, otherwise there is no way to grow new plants. After that, apply plant ash to the roots to help the wound heal, and finally plant it and water it so that the small shoots will grow in about a week.

2. Cuttings planting first find the side branches to be removed, so that the branches retain at least three sections, when cuttings, let two sections stay in the ground, and the other section remains on the ground, and at the same time after cuttings, we must ensure that the soil is moist and the humidity of the air is maintained, so that it can take root as soon as possible.

3. Seed planting When the seeds are harvested in autumn every year, you can choose to sow them in March and April of the next year, and cover them with a layer of thin soil after planting, and then water them, and they can grow small buds in about a week, and they must be protected from strong light at this time.

Planting dahlias should also be selected at a reasonable time, generally in the spring of 3 4 months planting is appropriate, to control the temperature at about 10 25, before planting the seeds to carry out germination treatment, the soil is thoroughly disinfected, but also combined with fertilization to loosen the soil, after planting after pouring water often moisturizing.

1. Dahlia spring planting Dahlia likes to grow in a cool environment, but many friends do not know when to plant dahlias, generally in the spring in March and April planting is the best, at this time is also the fastest germination period, mainly to 10 25 is appropriate, in the case of cold climate in the northern region, you can use the method of greenhouse cultivation.

Second, the main points of planting dahlias1. Germination treatment

In the process of planting dahlias, in order to ensure the germination rate of seedlings, it is best to germinate the seeds, put the seeds directly in the soil after the soil thaws, if the germination point is not obvious, you can germinate in advance, cover it with a layer of mulch film or wet straw, control the temperature at about 15, and it will probably germinate soon.

2. Soil requirements

The soil for planting dahlias is particularly important, mainly to the loose and fertile sandy soil with good drainage performance, the soil is thoroughly disinfected before planting, and the soil is loosened in combination with fertilization, and the fertilizer applied is mainly rotten organic fertilizer, which is stirred after pouring water to increase the fertility of the soil.

3. Planting management

The seedlings of dahlias are placed in the soil, keeping the spacing of each plant at about 15 cm, the thickness of the covering soil is about 3 4 cm, and the weather is humid and can be covered with a layer of mulch film to keep warm and moisturize, and give sufficient sunlight treatment every day, so that the branches and leaves will grow more luxuriantly.