How to grow black and purple sunflowers

Article Catalog

1. Soil

2. Lighting

3. Temperature

4. Watering

5. Fertilization

6. Pest and disease control

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Soil: It is best to use soft and fertile soil for cultivating black and purple sunflowers. Light: It needs to be provided with sufficient sunlight and cannot be left in a dark place for a long time. Temperature: It is advisable to give it a growing environment of 18-30℃, and the minimum temperature in winter should not be lower than 10℃. Watering: Water according to the principle of watering as soon as it is dry. Water should be permeable to prevent root rot. Fertilization: Top dressing can be done every 7-10 days during the growth period to provide nutrients and help it grow.

1. Soil

1. Soil

It is best to use soft and fertile soil to cultivate black and purple sunflowers. The soil should be less sticky. It is best to use peat soil when sowing.

2. Light

Black and purple sunflowers like sufficient light. If they are grown indoors, they need to be grown on the balcony to avoid shade or semi-shade. Insufficient sunlight will cause problems such as soft leaves, stiff stems, and small flower disks.

3. Temperature

Black and purple sunflowers have strong adaptability to temperature and like warm environments. The most suitable temperature for growth is 18-30℃. It can grow healthily in an environment not lower than 10℃. If the temperature difference between day and night can be kept within 8-10°C, it will be more conducive to the growth of stems and leaves.

4. Watering

Water more during the seedling stage and vigorous growth period, 2-3 times a day, but drain the water in time to avoid stagnant water to avoid root rot. Case. Water appropriately during the flowering period to avoid drought or flooding.

5. Fertilization

Black and purple sunflowers like sufficient nutrients and should be topdressed every 7-10 days during the growth period. In the seedling stage, nitrogen fertilizer is mainly used. After flower buds appear, adding some phosphorus and potassium fertilizer can help the flowers develop and facilitate flowering. Appropriate supplementation of fertilizers can prevent branches and leaves from becoming thin and yellowing.

6. Pest and disease control

Spraying pesticides in a timely manner during the breeding process or treating the soil before planting can effectively control the occurrence of pests and diseases. If an insect infestation is discovered, it should be dealt with immediately to avoid causing greater damage to the plant.

2. Lighting

3. Temperature

4. Watering

5. Fertilization

6. Pest and disease control

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