Double-season sunflower is suitable for growing in a warm and humid environment, and attention should be paid to proper watering, pruning, adequate lighting conditions and reasonable fertilization.

First, the cultivation method of double-petal sunflower

1. Adequate lighting

The cultivation of double-petal sunflower needs sufficient light conditions, and photosynthesis is carried out under scattered light during the growing period to meet its root growth needs. In summer, the temperature is high, so avoid strong light conditions and avoid the influence of exposure on its growth. In winter, it is bred in a place with good indoor lighting conditions.

Regular pruning

After the double-season sunflower grows for a period of time, the branches and leaves will be too long, dry and rotten, and the diseased branches and leaves need to be pruned in time. Branches and leaves that grow too fast also need to be trimmed properly to ensure the overall density of the plant and increase the ornamental value. Provide sufficient nutrients for the growth of healthy branches and leaves.

Reasonable watering

The cultivation of double-petal sunflower needs reasonable watering. If the soil is found to be slightly dry, water it in time and thoroughly at one time. Water should be poured every 2-4 days in spring and autumn to meet the needs of root growth. You can water it once a day in summer, so the water evaporates quickly to avoid water loss. Reduce watering times in winter and water once every 5-7 days.

4. Appropriate fertilization

The growth of double-petal sunflower needs proper fertilization, and diluted decomposed fertilizer is used every half month during the growth period. Diluted phosphorus and potassium fertilizers were applied once every 10 day in flowering period to meet the required nutrients and prolong flowering period.

Second, matters needing attention

1. Disease problems

Disease problems often occur in the cultivation of double-petal sunflower, so it is necessary to spray carbendazim solution on its plants to prevent disease.

Planting container

Double-petal sunflower planting needs to use well-ventilated basin soil, clay basin or soil basin. Spread a thin layer of gravel on the bottom of the flowerpot to increase air permeability.