How to transplant Platycodon grandiflorum

When talking about Platycodon grandiflorum, I think of Invyasha's Platycodon grandiflorum, a sad witch. What I want to say here is Platycodon grandiflorum. What is the planting method of Platycodon grandiflorum? Platycodon grandiflorum is mostly planted with seeds, and it needs to be transplanted after germination and growth into seedlings. What is the transplanting method of Platycodon grandiflorum?

Planting method of Platycodon grandiflorum:

1. Light and potted soil

Platycodon grandiflorum likes warm, sunny environment, suitable temperature for growth of 15-25 ℃, high temperature resistance, like loose, fertile, well-drained calcareous soil.

2. Temperature

The suitable growth temperature of Platycodon grandiflorum is 15-28 ℃, and the night temperature during the growing period is not lower than 12 ℃. When the winter temperature is below 5 ℃, the leaves are rosette and can not blossom. It can also withstand 0 ℃ low temperature for a short time. When the temperature in the growing period exceeded 30 ℃, the flowering period was obviously shortened.

3. Proper watering

Platycodon grandiflorum has strict requirements for moisture. Although Platycodon grandiflorum likes wet environment, excessive water is disadvantageous to the root growth of Platycodon grandiflorum and is vulnerable to diseases. After bud formation, high temperature and humidity should be avoided, otherwise it is easy to cause fungal diseases.

If the water supply is insufficient during the growing period, the stems and leaves will grow weakly and blossom early. Platycodon grandiflorum is sensitive to light. Long-day light is very beneficial to the growth and development of Platycodon grandiflorum, which is helpful to the growth of stems and leaves and the formation of flower buds.

4. Selective treatment of basin soil.

Platycodon grandiflorum requires fertile, loose and well-drained soil. Don't keep cropping.

Potted soil is best used after disinfection.

Control of diseases and insect pests of Platycodon grandiflorum

1. Stem blight

It can be sprayed with 1000 times of acetic acid solution of 10% antibacterial agent. in severe cases, it can be sprayed alternately with 50% methyl topiramate wettable powder and 50% baicaoqing wettable powder 500 times, once every 3 to 5 days.

Pay attention to strengthen ventilation and light transmission, do not plant too dense, usually can be appropriate application of nitrogen fertilizer, appropriate increase of phosphorus and potassium fertilizer, improve plant disease resistance.

2. Root rot

Fungi infect the root and rhizome, and black necrotic spots are formed in the rhizome during the disease, and the plant dies in severe cases. The spread of fungi mainly depends on soil, fertilizer, watering and so on.

Prevention and control methods: apply rotten fertilizer; water properly to avoid stagnant water; 50% carbendazim wettable powder 600 times solution can be used at the initial stage of the disease, sprayed every 10 days or so for 2 or 3 times.

Leaf spot disease was controlled by spraying 500 times of 50% topiramine wettable powder.

3. Insect pests

Insect pests are harmful to aphids and leaf rollers, which can be sprayed with 1500 times of dimethoate EC.

How to transplant Platycodon grandiflorum:

1. Transplanting time

The growth of Platycodon grandiflorum seedlings is very slow, which should be managed carefully, the roots should not be hurt as far as possible, and the seedlings should not be moved too deep.

When it grows to 4 to 5 true leaves, it can be planted in a basin of 8 cm and 15 cm. During the operation, the roots should not be damaged, otherwise it is difficult for the seedlings to return to normal growth.

2. Apply fertilizer to pick the heart

During the growing period, fertilization is applied once every semimonthly, and coring can be used for varieties with strong branching to promote more branches, more flowering and reduce plant shape.

In the process of growth, high temperature and long sunshine can promote flower bud differentiation, achieve the purpose of early flowering and shorten the growth period.

Generally, it takes 120 to 140 days from sowing to flowering for Platycodon grandiflorum and 150 to 180 days for cut flowers.

3. Cultivation temperature

The seedling growth of Platycodon grandiflorum is very slow, and it can be cultivated in the open field at a temperature of no less than 15 ℃. It is best that the temperature is lower than 25 ℃ in summer (it is really afraid of cold and heat), which will affect the quality of cut flowers. Avoid flood and high temperature after bud formation, otherwise diseases are easy to occur.

Under the high temperature and strong light, the water demand of Platycodon grandiflorum increases, at this time, it is necessary to ensure that the substrate is moist, and drought affects the elongation of the flower stem.

4. Selection of cultivated soil

The cultivation substrate should be improved garden soil with peat soil, rice bran and a small amount of lime, organic fertilizer and bone powder should be added as base fertilizer before planting, and topdressing should be applied in time during the growth process.

The biggest reason why it is difficult to raise Platycodon grandiflorum to flowering is that it is difficult to manage in the seedling stage. The seeds of Platycodon grandiflorum are very small, and it takes at least 2 months for the seedlings to grow from cotyledons to the second pair of true leaves.

The planting method of Platycodon grandiflorum and the method of transplanting are introduced here. Come and raise one as soon as possible. It is not easy to grow seeds into seedlings.

How to grow Platycodon grandiflorum how to grow Platycodon grandiflorum

Platycodon grandiflorum belongs to the perennial plant of Gentianaceae, which is native to the limestone zone between the southern United States and Mexico. It is one of the most popular potted and cut flowers in the world. Let's follow the editor to learn how to grow Platycodon grandiflorum and how to grow Platycodon grandiflorum.

Introduction of Platycodon grandiflorum

Platycodon grandiflorum, a perennial plant of Gentianaceae, is native to the limestone belt between the southern United States and Mexico. Leaves opposite, broadly elliptic to lanceolate, almost sessile, leaf base slightly clasping; leaf surface blue-green. Stamens and pistils obvious, bracts narrow-lanceolate, petals imbricate. Flowers and colors are rich, there are monochrome and complex color, petals single and double petals. Platycodon grandiflorum, also known as grassland gentian, belongs to the genus Gentiana of Gentianaceae.

Platycodon grandiflorum is one of the most popular potted and cut flowers in the world because of its light and slow plant state, elegant and lively color and unique and lovely flower shape. Platycodon grandiflorum is perennial! In other words, after sowing once, you can have flowers every year! Every year, after blooming and cutting off the main branches, it will send out new buds in the roots, and each new bud will grow into a new plant, and after a few years, one will become a clump! The plant state of Platycodon grandiflorum is light, elegant and lively, and the flower shape is chic and lovely. It has been one of the most popular species of potted and cut flowers in the world until 2013.

1. Morphological characteristics

Plant: Platycodon grandiflorum belongs to the perennial plant of Gentianaceae, with a height of 30cm and 100cm.

Leaves: leaves of Platycodon grandiflorum opposite, broadly elliptic to lanceolate, almost sessile, leaf base slightly clasping; leaf surface blue-green.

Flowers: the stamens and pistils of Platycodon grandiflorum are obvious, the bracts are narrow-lanceolate, and the petals are arranged in imbricate shape. Flowers and colors are rich, there are monochrome and complex color, petals single and double petals. Platycodon grandiflorum, also known as grassland gentian, belongs to the genus Gentiana of Gentianaceae. The plant state of Platycodon grandiflorum is light, the design and color is elegant and lively, and the flower shape is chic and lovely.

Flowering period: Platycodon grandiflorum sowed from January to March, flowered from July to August, sowed from September to October, and flowered from April to May the following year.

2. Ecological habits

Platycodon grandiflorum likes the warm, sunny environment, the suitable temperature for growth is 15-25 ℃, and it is more resistant to high temperature. Requires loose, fertile, well-drained calcareous soil.

Third, the flower words of Platycodon grandiflorum

The flower words of Platycodon grandiflorum: unchanging love, my heart is like one.

How to plant Platycodon grandiflorum

I. planting method of Platycodon grandiflorum

1. Methods of reproduction

The suitable growth temperature of Platycodon grandiflorum is 15-28 ℃, and the night temperature during the growing period is not lower than 12 ℃. When the winter temperature is below 5 ℃, the leaves are rosette and can not blossom. It can also withstand 0 ℃ low temperature for a short time. When the temperature in the growing period exceeded 30 ℃, the flowering period was obviously shortened.

Platycodon grandiflorum has strict requirements for moisture. Although Platycodon grandiflorum likes wet environment, excessive water is disadvantageous to the root growth of Platycodon grandiflorum and is vulnerable to diseases. After bud formation, high temperature and humidity should be avoided, otherwise it is easy to cause fungal diseases. At the same time, during the growing period, there was insufficient water supply, weak growth of stems and leaves, and early flowering. Therefore, the cultivation of Platycodon grandiflorum in Israel and drip irrigation facilities are very beneficial to the growth and development of Platycodon grandiflorum.

Platycodon grandiflorum is sensitive to light. Long-day light is very beneficial to the growth and development of Platycodon grandiflorum, which is helpful to the growth of stems and leaves and the formation of flower buds.

Platycodon grandiflorum requires fertile, loose and well-drained soil. Don't keep cropping. The pot soil must be sterilized, and the soil can be treated with high temperature steam or methanol bromide.

Commonly used to sow and reproduce. The indoor pot sowing is mainly from September to October or January to February. The seeds of Platycodon grandiflorum are small, with 22000 seeds per gram, the germination rate is 80% and 85%, and the optimum temperature for germination is 22 ℃. Platycodon grandiflorum is a light-loving seed, which is not covered with soil after sowing, but only needs to be pressed gently. Before sowing, basin soil and containers should be strictly sterilized at high temperature. It germinated 10-14 days after sowing, and the seedlings were planted once within 10 days after germination.

2. Cultivation and management

The growth of Platycodon grandiflorum seedlings is very slow, which should be managed carefully, the roots should not be hurt as far as possible, and the seedlings should not be moved too deep. When there are 4 to 5 true leaves, it can be planted in a basin of 8 cm and 15 cm. During the operation, the roots should not be damaged, otherwise it is difficult for the seedlings to return to normal growth. Fertilize once every half month during the growing period, or use 15-15-30 "Huiyou" potted flower special fertilizer and 12-0-44 potassium nitrate fertilizer. If medium-sized cut flower varieties are used as potted ornamental plants, 0.03% sodium chloride 0.05% is better than long-time solution spraying plants for 2 or 3 times 20 days after planting.

For varieties with strong branching, coring can be used to promote more branches, more flowering and reduce plant shape. In the process of growth, high temperature and long sunshine can promote flower bud differentiation, achieve the purpose of early flowering and shorten the growth period. Generally, it takes 120 to 140 days from sowing to flowering for Platycodon grandiflorum and 150 to 180 days for cut flowers.

It is mainly propagated by sowing and tissue culture. The growth in the seedling stage is very slow. Platycodon grandiflorum can be cultivated in open field or in greenhouse. The cultivation temperature should not be lower than 15 ℃. Although Platycodon grandiflorum has a certain tolerance to high temperature, the temperature should be controlled below 25 ℃ in summer high temperature season, otherwise it will affect the quality of cut flowers, especially avoid flood and high temperature after bud formation, otherwise diseases are easy to occur. Under the high temperature and strong light, the water demand of Platycodon grandiflorum increases, at this time, it is necessary to ensure that the substrate is moist, and drought affects the elongation of the flower stem.

The cultivation substrate should be improved garden soil with peat soil, rice bran and a small amount of lime, and barnyard manure and bone powder should be added as base fertilizer before planting. Because of its large amount of fertilizer and timely topdressing in the growth process, the data show that calcium nitrate is a good fertilizer, which provides nitrogen and calcium.

2. Disease control of Platycodon grandiflorum

Platycodon grandiflorum is common to stem blight and leaf spot. Stem blight was sprayed with 1000 times of acetic acid solution, an antibacterial agent of 10%. Leaf spot disease was controlled by spraying 500 times of 50% topiramine wettable powder. Insect pests are harmful to aphids and leaf rollers, which can be sprayed with 1500 times of dimethoate EC.

The main diseases are stem blight, root rot, gray spot and so on. Stem blight is a kind of fungal infection, which mainly harms the stem of the plant. when the disease occurs, the cortical tissue of the stem of tangerine pedicel decays. High temperature and humidity environment can easily lead to the occurrence of the disease. 1% Bordeaux solution was sprayed at the initial stage of the disease, and in severe cases, 50% methyl topiramate wettable powder 500 times and 50% Baicaoqing wettable powder 500 times were used alternately, once every 3 to 5 days. In addition, we should pay attention to strengthen ventilation and light transmission, reduce plant density, apply nitrogen fertilizer reasonably, increase phosphorus and potassium fertilizer appropriately, and improve plant disease resistance.

Root rot is also a kind of fungal disease, which mainly infects the root and rhizome. Black necrotic spots are formed in the rhizome when the disease occurs, and the plant dies in severe cases. The spread of the fungus mainly depends on soil, fertilizer, watering and so on. Prevention and control methods: apply rotten fertilizer; water properly to avoid stagnant water; 50% carbendazim wettable powder 600 times solution can be used at the initial stage of the disease, sprayed every 10 days or so for 2 or 3 times.

Third, the purchase and maintenance of Platycodon grandiflorum

Removing withered flowers can promote the blooming of apical buds and increase vase life. Platycodon grandiflorum should avoid being placed in an overheated environment. In order to make the flowers on the branches bloom longer, they should change the water frequently and cut the pedicels again.

Although the potted Platycodon grandiflorum is not sensitive to ethylene, the phenomenon of ethylene toxicity of wilting flowers also occurs in the process of transportation. the potted Platycodon grandiflorum can be sprayed with 0.3 × 0.4 mm / L silver thiosulfate once two weeks before the market to improve the quality of Platycodon grandiflorum potted flowers.

Variety classification of Platycodon grandiflorum

1. Mermaid series (Mermaid)

The plant is 15-20 cm in height, single flower, 6-8 cm in diameter, pink, purple, beige and other colors. It takes 120 days from sowing to flowering.

2. Edie series (Eeidi)

Plant height 50-60 cm, early flower species, flower diameter 8 cm, flower colors are dark blue, pink, rose, yellow, white, blue and two colors.

3. Florida series (Florida)

The plant height is 20-25 cm, and it is resistant to high temperature. even if it is sown at 31 ℃, especially in the first one or two months after transplanting, clusters are not easy to appear. It is the best choice for cultivation in high-temperature and high-light areas, and it is very sensitive to plant growth regulators. Blue Blue, pink, Pink, silver, white, Silver, sky blue Sky Blue are common.

4. Lisa series (Lisa)

Short growth, plant height 15-20 cm, compact plant type, early flowers, cold-toned cup-shaped flowers, set off with gray-green leaves, excellent cultivation performance under short-day conditions, cluster resistance slightly inferior to the Florida series, commonly seen as blue Blue, lavender Lavender, pink, Pink and white White. Among them, Blue Lisa (LisaBlue) has a height of 15cm and 20cm, early species, single flower, dark blue and strong ramet.

5. Sapphire series (Sapphire)

Plant height 10 to 15 cm, excellent branching makes adult plants bloom more, clump resistance is the same as Lisa series, good performance under low light conditions, suitable for 7-10 cm flowerpot cultivation, without coring or the application of plant growth regulators to maintain its delicate, tidy plant type, commonly seen blue Blue blue fragments Blue Chip double white Double White medium blue Mid-Blue pink lace Pink Rim white White.

6. Red Mirror (RedGlass)

The plant height is 30cm to 35cm, the ramet is good, and the flower is deep red, which is the most of the safflower of Platycodon grandiflorum.

7. Echo

The plant is 55 cm tall, the flower is double, the flower diameter is 8-9 cm, and the flower color is blue. Pink and white, two colors, etc.

8. Double DeubleEagle

The plant height is 45cm to 60cm, the flower diameter is 7cm, and the flower color is varied.

9. Mary Aiki (Mariachi)

The plant height is 50-80 cm (varies with the season), the flower diameter is 7-8 cm, and the flower color is varied.

The function and use of Platycodon grandiflorum

The plant state of Platycodon grandiflorum is elegant and the tone is fresh and elegant. Potted plants are used to decorate the bedroom, balcony or windowsill, showing a strong European atmosphere. Such as putting hotels all over the place. The music teahouse, the shop window, the bank lounge and the corner of the stairs show an elegant and luxurious atmosphere. If you cut off a few purple Platycodon grandiflorum as the main flower, with white lilies and willow branches, insert into the bamboo basket to form a combination of Chinese and Western, picturesque and intoxicating.

Platycodon grandiflorum cultivated, Platycodon grandiflorum, Platycodon grandiflorum, a variety of Platycodon grandiflorum, belongs to the perennial plant of Gentianaceae, native to the limestone zone between the southern United States and Mexico, with a height of 30cm. Leaves opposite, broadly elliptic to lanceolate, almost sessile, leaf base slightly clasping; leaf surface blue-green. Stamens and pistils obvious, bracts narrow-lanceolate, petals imbricate. Flowers and colors are rich, there are monochrome and complex color, petals single and double petals. Platycodon grandiflorum varieties

1. Mermaid series: plant height 1520cm, flower single, diameter 6cm 8cm, flower color pink, purple, beige and other colors, from sowing to flowering takes 120 days.

2. Edie series: plant height 50cm to 60cm, early flower species, flower diameter 8cm, flower colors are dark blue, pink, rose, yellow, white, blue and two colors.

3, Florida series: plant height 20-25 cm, high temperature resistance, even if sowing at 31 ℃ high temperature, especially in the seedlings (hole plate seedlings) after transplanting in the first one or two months after the high temperature weather, it is not easy to appear cluster phenomenon, is the best choice for cultivation in high temperature and high light areas, very sensitive to plant growth regulators, commonly seen blue Blue pink Pink silver white Silver sky blue SkyBlue.

Platycodon grandiflorum flower language

Fancy words: full of emotion, moved.

Cultivation of Platycodon grandiflorum

1. Raising seedlings: after selecting good seeds, the first step is to consider the planting substrate. It is recommended to use imported peat (the soil is rich in organic matter and suitable PH, which you can grasp from an economic point of view). Of course, you can also use general planting soil, but only if the substrate is sterilized and fully mature.

2. Seedling management: from now on, all you need is to wait for this little life to break out of the ground, but it doesn't matter to remember a little bit of "light". The result is that you will never wait for them to break out of the ground. The editor has suffered a great loss on this. Platycodon grandiflorum seedlings need full light, which means there is no need to cover the soil after sowing.

3, the management of water and fertilizer: in fact, all flowers must have reasonable water and fertilizer in order to achieve high quality, and this is often ignored.

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