When will the potherb be sown?

Euphorbia angustifolia is a common plant by the river and mountain roadsides, which has high ornamental value. Now it is being planted in some areas, so when will it be sown?

First, sowing time

The seeds are usually sown in spring and autumn, February to April in spring and August to October in autumn, and the temperature is about 20 degrees.

II. Land selection and preparation

The soil suitable for growth is sandy soil, which contains humus and requires good drainage. It likes a cool climate and is not suitable for exposure to sunlight, so it is suitable for sowing and growing in moist places with high soil moisture, such as under woods, riversides, streams and so on. After selecting the land, the sown land should be fully fertilized, watered thoroughly, and the ground surface should be flat.

Third, deal with the seeds

It is better to sow the seeds as soon as the seeds are mature, and the seeds had better be sparse, and the waxy layer on the seeds should be removed before sowing. The seeds can be put on gauze and gently rubbed in water. To be light, some seeds are soaked in warm water, or covered with a wet cloth to promote germination.

Fourth, sowing seeds

Sow the seeds evenly while the soil is moist, but also pay attention to the soil not to be too wet, the humidity is too high, it will rot the seedlings, and then cover it with plastic film, do not cover it with concrete soil, so that it can keep warm and let it germinate faster.

5. Management techniques after sowing

1. Fertilizer requirements: when the plant is growing vigorously and before blooming, it should be topdressing in time, and urea or phosphate fertilizer can be sprinkled into the water for watering. At the same time, attention should be paid to drainage and no stagnant water. It is necessary to loosen the soil in time, prevent soil consolidation, reduce soil permeability, and pay attention to proper pruning to prevent plants from lodging too high.

2. Temperature requirements: the most suitable temperature for the seedlings of Rabdosia angustifolia is 15 degrees, and the temperature during the growing period is about 10 degrees.

3, lighting requirements: the demand for light time is relatively long, the sunshine time of a day can not be less than 14 hours, so the sunshine is insufficient, it is necessary to supplement the light time, especially the pot plants must supplement the light in winter. In the summer, we also have to shade the lettuce so that it can not be directly shone by the sun.

4. pest control: if it is in the north, there is no rain in spring, it should be watered 4 or 5 times a month, and weeds should be removed in time to prevent the spread of diseases and insect pests. do a good job in the prevention and control of aphids and red spiders as soon as possible, and spray pesticides on the leaves.

In general, it can be sown in February-April in spring and August-October in autumn. If you don't know exactly how to plant it, you can plant it as long as the temperature is about 20 degrees.