When does the sunflower blossom?

Sunflowers bloom in summer, usually from June to September. The flowering period is very long and the ornamental value is particularly high. Its flowers can be divided into single petals and double petals. In sunny days, it will bloom, and in rainy days, its flowers will close. Sunflowers are usually solitary or clustered, growing at the top of branches, with stems about 3-4 cm long and colors such as white, pink, red and purple.

First, the meaning of sunflower

Sunflower symbolizes optimism, courage and self-improvement. Sunflowers have three flower words. The first flower word is silent love, bright and warm, which means optimism, courage and self-improvement. The second flower language is enthusiasm, perseverance, not afraid of difficulties, always happy and so on.

Second, how to cultivate sunflowers

1, plenty of light

Sunflowers are sunlight-loving plants and have a high demand for light. When cultivating sunflowers, they need to be placed in a bright environment and receive no less than 7 hours of light every day. When the light is insufficient, it is necessary to install plant fill lights for sunflowers.

2. Scientific fertilization

If you want sunflower buds to be big and rich, you should provide them with adequate nutrition. The decomposed organic fertilizer can be applied once a month during the plant growth period to promote the flower bud differentiation of sunflower, and phosphorus, potassium fertilizer or calcium superphosphate should be applied after sunflower flowering.

Step 3 prune dead branches

Sunflowers are suitable for pruning in spring or autumn every year. When cultivating sunflower, it is necessary to use sterilized sharp scissors to cut off withered branches, weak branches and branches of diseases and pests with poor plant growth, so as to promote the emergence of strong new branches and shorten the long branches of sunflower.

4, reasonable watering

Sunflowers like water, but they are not tolerant of waterlogging. If you want sunflower buds to be big and numerous, you should control the watering frequency. It is best to water the sunflower after the surface of the soil is dry. When watering the sunflower, it is necessary to let the water run down the edge of the flowerpot and let the soil soak completely.

Third, how to trim

1, coring treatment: it grows faster, so it should be pruned from seedling stage. When it grows to 8- 10 leaves, cut off the top of the main stem. At this time, the lateral branches should not be moved, and the plant type should be ensured. After pruning the main stem, the nutrients in the side branches will be richer and the number of flowers will increase.

2. Pruning of lateral branches: Do not move the lateral branches at the seedling stage, and prune them in time at the later stage to realize pot explosion. The top of the lateral branches should also be cut off, which can save a lot of nutrition and increase the number of flowers. Grow fast and will recover soon.

3. Pruning leaves: Prune leaves when they are found to be too dense in the management process, otherwise it will consume a lot of nutrients and affect flowering. Some leaves should be removed and the wound should be protected from water. Put it in a cool place first, and then resume management when the wound is dry.