How to cultivate delphinium and its breeding methods and matters needing attention

Today, the editor will talk about delphinium. Swallow grass, also known as pigeon flower. Bright colors, purple and white, the flower shape is very unique, deeply loved by people. Most people like beautiful flowers and want to keep some delphinia at home. So, how to raise delphinium? What is there to pay attention to? Get to know more about it with the editor.

How to raise delphinium

1. Sowing seeds

Delphinium can be sown in spring and autumn, but must be sown in mid-September if sown in autumn. When sowing in spring, the flowering time is in September, and that in autumn is in May of the following year. Flowers sown in spring should be estimated to avoid blooming in the heat of summer.

2. Change basin and maintain

When Swift grass grows two true leaves, it needs to take soil and transplant it in a small basin. Wait until the seedling grows up and change the pot again. Due to the lack of roots, extra care should be taken when changing pots to avoid causing slow growth or even death after damaging the roots. Delphinium must keep the soil moist after sowing. The easiest way is to cover some grass and gradually remove the mulch after emergence.

3. Water and fertilizer management

Swallow watering should grasp the principle of dry and wet, keep the soil moist, but avoid stagnant water. The flowering period should be watered properly to avoid poor flower shape caused by too dry soil. Fertilization: the eye fertilizer was applied once every semimonthly during the growing period, and the phosphorus and potassium fertilizer was applied 2-3 times before flowering. The soil is kept moist during the flowering period, which can prolong the flowering period. According to the growth status of delphinium, cake fertilizer and water are applied 1-3 times a month.

4. Lighting

Swallow grass likes light, and full-sunshine maintenance is beneficial to promote flowering, prevent plant overgrowth and keep plant type short and beautiful.

5. Height control

After changing the basin, paclobutrazol can be used to control the height of the plant. The specific method is to apply 0.5% paclobutrazol every 2 weeks.

Culture methods and matters needing attention of swallows

First, the culture method of delphinium

1. Lighting

It needs light, so usually let it bask in the sun, and let the light illuminate it in October, so that it will blossom earlier.

2. Watering

Watering also has requirements, need to make it dry and wet, if it is in blossom season, you can water more.

3. Fertilization

When changing the basin, you need to apply some fertilizer, such as dry dung, and then it depends on the growth, about one or three times a month to apply cake fertilizer. Nitrogen fertilizer can be applied before flowering, but more phosphorus and potassium fertilizer must be applied after flowering, and can be watered moderately when fertilizing.

II. Matters needing attention in delphinium aquaculture

1. Maintenance

After sowing it, what we need to do is to keep the soil moist, it is best to cover it with some grass, and then we can wait for the seedlings to grow and then slowly remove the cover.

2. Transplant

If you want to move it to the pot, you must first make sure that it grows two leaves. At this time, the basin is relatively small, and you can change it to a bigger one when it gets bigger.

3. Height control

If it grows too tall is not a good thing, at this time we can give it to use paclobutrazol to stabilize its height, usually applied about twice a month, each time the concentration is 0.5%.

4. Disease

It has some common diseases, such as black spots, chrysanthemum leaf blight and so on, which can be treated with some reagents.

5. Insect pests

It will also suffer from some aphids or night E, at this time you can use insecticide EC.

What are the ways of reproduction of swallows?

1. The mode of reproduction of delphinium: sowing

The optimum temperature for swallow germination is about 15 ℃, and the best soil temperature is below 20 ℃, which will germinate in about two weeks. Autumn sowing in late August to early September, first sowed into the open field seedbed, before winter into the cold bed or cold room to winter, warm spring planting. The seedlings were directly broadcast in the open field in early spring in the south, and the distance between seedlings was kept at 25cm. In the north, seedlings are generally raised beforehand and planted in April, 2-4 true leaves and 4-7 true leaves. Pay attention to drainage on rainy days. The soil must be kept moist after sowing. The easiest way is to cover some grass and gradually remove the mulch after emergence.

2. The propagation mode of delphinium: cutting

The cuttage propagation of delphinium is carried out in spring. When the new branch grows above 15cm, the cuttings are cut and inserted into the sandy soil. Do not rush to water after inserting sand. Water properly after 2-3 days.

3. The mode of reproduction of delphinium: ramet

It can be carried out in both spring and autumn. When the new buds grow to 15-18cm in spring, they can be transplanted after rooting, and the new branches at the base can also be cut after flowering. Ramets should pay attention to fate, some delphinium does not grow new buds for 3 years, and some delphinium grows a lot of seedlings in a year to cling to the base of the mother plant. Ramet is usually carried out once every 2-3 years, otherwise it is easy to lose the vitality of the mother plant. Just after Mother's Day, we also give more care to the mother plant, so that she can spend more time with the children, so that the children will be strong after they are independent.

When will the seeds of swallows be planted?

1. Delphinium can be sown in batches, so that the flowers of delphinium can be seen frequently. When sowing delphinium, it is generally possible to sow in spring and autumn. However, in places where the summer temperature is higher, sowing needs to avoid the summer vacation.

2. Basically, when sowing delphinium, it is necessary to raise seedlings in advance. Sowing begins in late August, and by October, the seeds of delphinium will sprout and grow, and four true leaves will grow, which can be transplanted. Pay attention to heat preservation in winter and replenish the light so that it can be planted in March of the following year. In this way, swallows can blossom from May to July.

Friends who like to grow flowers, do you understand? Before raising swallows, we must first understand its living habits and breeding methods. In the process of breeding, we also have to consider many aspects, so that we can grow satisfactory flowers.