How do sunflowers spread their seeds?

Sunflower, also known as lotus, pine leaf peony, dragon beard peony, Portulaca oleracea, noon flower, is a common ornamental flower. So how do sunflowers spread their seeds?

First, how do sunflowers spread their seeds?

Sunflowers grown under natural conditions are spread by wind, animals, etc., but now it is generally humans who sow and spread seeds. Among them, spring sowing should be carried out from March to May and autumn sowing should be carried out from September to October.

Second, how to maintain sunflowers?

1. Basin soil

Sunflowers do not have much requirement for pots, as long as pots without stagnant water are fine. 3 parts of pastoral mature soil, 5 parts of yellow sand, 2 parts of fly ash and a little calcium superphosphate powder can be used as nutrient soil.

two。 Temperature

The suitable temperature for sunflower growth is 26-29 °. If the temperature is a little higher, it can grow normally, and if it is lower than 15 °, it will stagnate.

3. Light

Sunflowers like places where there is plenty of light, and generally choose places where they can be raised by the sun, and grow slowly in dark places.

4. Watering

Sunflowers should follow the watering principle of "dry and wet", that is, watering once, and then watering the second time when the soil is almost dry.

5. Fertilizer application

Sunflowers usually do not need fertilization, usually pour a little fermented rice panning water, you can make the sun flowers bloom and flourish.

6. Administration and Management

There are few diseases and insect pests in sunflowers. Usually maintain a certain humidity, semimonthly application of 1/1000 potassium dihydrogen phosphate, can achieve the purpose of large color and blooming. If multiple varieties are cut in one pot and all kinds of flowers bloom in one pot, the appreciation value is higher.