How to raise poinsettia culture methods and matters needing attention

Poinsettia, the color is very bright, bright red flowers with green leaves, especially beautiful. Poinsettia is often used as a red flower for decoration, and many people like to grow poinsettia at home or in the courtyard. So how to grow such a beautiful and beautiful poinsettia? Now hurry up with the editor to get to know it!

How to raise poinsettia

Poinsettia prefers warmth, moisture and plenty of light. It is not tolerant to low temperature and is a typical short-day plant. Strong direct light and lack of light are disadvantageous to its growth. Avoid stagnant water and keep the basin soil moist. Short-day treatment can blossom in advance.

Cold tolerance is weak, greenhouse cultivation in East China and North China must be moved into the greenhouse before frost, otherwise the temperature is low, it is easy to yellow leaves, fallen leaves and so on. The room temperature in winter should not be lower than 5 ℃, and the suitable room temperature should be 16-18 ℃. Strict requirements for moisture, the soil is too wet, easy to cause root rot, fallen leaves and so on.

Culture method of poinsettia

1. Soil requirements

Potted poinsettia soil cleanliness is the most important, there can be no peculiar smell. Secondly, the drainage is good, containing a small amount of soluble salt and the necessary elements to meet the growth of poinsettia. If you dig directly from the garden of the community, make sure there are no impurities. The soil usually selected is peat soil, and perlite, vermiculite, ceramsite and sawdust are mixed. Before planting, the soil is flattened and exposed to the sun for 30 minutes.

2. Fertilization method

Poinsettia likes fertilizer, fertilizing once at 7: 10 during the growing period, nitrogen, phosphorus and potassium compound fertilizer can be selected. After August until flowering, nitrogen and phosphorus liquid fertilizer is applied once every 7-10 days, and when it is close to flowering, the application of phosphorus fertilizer can ensure that the flowers are large and colorful. But do not apply too much fertilizer each time, let alone apply raw fertilizer. Fertilization is usually applied in the evening and watered the next morning. The times and concentration of fertilization are halved when the light is low in winter.

3. Watering method

Poinsettia is sensitive to water, uneven watering, dry or wet will cause adverse reactions. If you water too much, the leaves will droop or even rot; if you are not watered enough, the leaves will curl. Therefore, poinsettia should be watered dry and wet. in the early growth stage (seedlings planted), the plant is small and watered less; the summer temperature is high, the plant growth is exuberant, the watering is a little more, water is watered once every morning and evening, and according to the weather conditions, spray water to the ground. You can water once every two days in the spring and autumn season.

4. Lighting requirements

Poinsettia is a short-day plant. Flower buds begin to differentiate only after less than 12 hours of light every day. In order to bloom normally, flower bud differentiation requires more than 15 hours of dark time. During this period (from October to March of the following year), lights should be prevented. In addition, normal maintenance, summer noon appropriate shade can be.

Points for attention of poinsettia

The key to breeding poinsettia lies in watering, as long as it is not suddenly bad weather, the outdoor environment can fully meet the growth needs of poinsettia. However, improper watering will affect the growth and development of the plant and ensure that the basin soil is wet but not dry.

Poinsettia is a light-loving flower that can grow healthily in strong light, but it is hard to stand the scorching sun at noon in summer. Proper shading will not hinder its growth.

How to make poinsettia grow taller

1. Water control

It is necessary to control water when the plant is still a seedling, and only 80% of the normal amount of water is irrigated every day, which can inhibit the growth momentum of the stem. But the growing season, especially at noon, water evaporation is larger, should often spray water to the leaves, so adhere to flowering, can make the plant become short and strong.

2. Medicament treatment

If you can't control the water, you can use medicine to help you. There is a growth retarder on the market, which can inhibit plant growth and height. During the peak growing season of poinsettia, spray it every 10-15 days until it blossoms, but do not spray it when it blossoms. Continue to use it in the spring of next year until the plant is basically formed.

3. Pick the heart

This is the easiest way to dwarf, generally from June to July can carry out a coring, cut off the top branches and leaves about 10 cm from the ground, retaining the base 3-4 nodes. After the Beginning of Autumn in early August, you can have a second heart pick, preferably two weeks after the Beginning of Autumn. This time, 2-3 nodes of lateral branches were preserved, which could promote flower branch differentiation.

When the second coring is in blossom, only a few leaves can grow after coring, and flower buds are formed at the top of the branch, thus inhibiting the height of the plant. Therefore, the earlier the second heart is picked, the longer the flower branch is, and vice versa, the shorter the flower branch is.

As mentioned above, friends who like poinsettia can plant it at home! However, poinsettia although beautiful and beautiful, but also pay attention to maintenance, if left unchecked, it is easy to cause crazy growth, cluttered branches and leaves, which has a great impact on beauty!