TheNaturePlanet

The flowering period of double-petaled sunflowers is relatively long, usually starting from early summer and continuing until autumn. Under suitable environmental and maintenance conditions, it can bloom continuously.
To enjoy this beautiful flowering period, choosing the right planting time is crucial. Double-petaled sunflowers prefer a warm climate, and the most suitable planting time is usually in spring. When the temperature stabilizes above 18 degrees Celsius and the soil gradually warms up, this is the best time to sow double-petaled sunflowers. Generally speaking, in southern areas, planting can be done from March to April, while in northern areas, due to the later warming of the temperature, it is recommended to do it from April to May.
When planting double-petaled sunflowers, the correctness of the method directly affects the growth and flowering effect of the plants. The following are detailed planting steps and methods:
The first step is to prepare suitable soil. Double-petaled sunflowers are not demanding of the soil, but to ensure their good growth, it is recommended to choose loose, fertile, and well-drained soil. You can mix leaf mold soil, garden soil, and river sand in a certain proportion to provide sufficient nutrients and good air permeability.
The second step is sowing. Evenly scatter the seeds of double-petaled sunflowers on the surface of the prepared soil, and then gently cover them with a thin layer of soil, with a thickness of about 1 - 2 times the diameter of the seeds. Be careful not to cover the soil too thickly to avoid affecting the germination of the seeds.
The third step is watering. After sowing, use a watering can to water gently to keep the soil moist but avoid water accumulation. Excessive watering may cause the seeds to rot and affect the germination rate.
The fourth step is light and temperature management. Double-petaled sunflowers are light-loving plants. During the seed germination period, appropriate light should be maintained, but direct sunlight should be avoided. After the seedlings emerge, gradually increase the light exposure time. At the same time, maintaining the temperature between 20 - 30 degrees Celsius is beneficial for the rapid growth of the seedlings.
The fifth step is transplanting and planting. When the seedlings grow to a certain height, transplanting and planting can be carried out. Choose the appropriate flowerpot or planting area, and maintain an appropriate distance between each plant to ensure that the plants have sufficient growth space.
The sixth step is daily maintenance. During the growth process of double-petaled sunflowers, water regularly to keep the soil moist. At the same time, apply a thin compound fertilizer every 2 - 3 weeks to provide sufficient nutrients. Timely pruning of spent flowers and dead branches helps to promote the opening of new flowers.
Attention should also be paid to the prevention and control of pests and diseases. Common pests and diseases include aphids, powdery mildew, etc. Regularly inspect the plants. Once pests and diseases are found, corresponding prevention and control measures should be taken promptly, such as using pesticides or fungicides.