FLS001 Hydrangea Seed (200 seeds/bag)

·     Hydrangea seeds, with 200 seeds in each pack. The seeds are extremely small, dark brown, and approximately resemble dust particles in appearance. Hydrangea is a popular perennial shrub flower. Its plant has a beautiful shape, with broad and green leaves arranged opposite each other. The flowers are spherical or conical, and the flower colors are rich and diverse, commonly including pink, blue, white, purple, etc. Different soil pH values can affect the flower colors of hydrangeas. Blue flowers are more likely to bloom in acidic soil, while pink flowers are more common in alkaline soil. Hydrangeas have extremely high ornamental value and are often used for courtyard beautification, garden landscape layout, and indoor potted decoration, adding a romantic and charming atmosphere to the environment.

1. Soil preparation: Select loose, fertile, well - drained soil rich in humus. Mix leaf mold, peat soil, and perlite in a ratio of 3:2:1 evenly and put it into a seed - raising pot or planting container. Before filling the soil, lay a layer of broken tiles or ceramsite at the bottom of the container to enhance drainage performance. Then water it thoroughly to make the soil in a moist but not waterlogged state.

2. Seed treatment: Since hydrangea seeds are small, no special treatment is required. To improve the germination rate, soak the seeds in warm water for 2 - 3 hours. After soaking, take them out and dry the surface moisture with a paper towel.

3. Sowing operation: Because the seeds are too small, mix the seeds evenly with an appropriate amount of fine sand and then evenly sprinkle them on the soil surface. Try to make the seeds evenly distributed to avoid overcrowding. After sowing, there is no need to cover the soil or only gently cover a very thin layer (about 0.1 cm) of soil to avoid affecting seed germination. Then use a sprayer to gently spray water to make the seeds fully contact the soil.

4. Moisture and light preservation: After sowing, cover a layer of plastic film or plastic wrap on the seed - raising pot or planting container to maintain humidity. Place it in a brightly lit place but avoid direct sunlight. The suitable germination temperature is 18 - 22 degrees Celsius. Open the film for ventilation for 1 - 2 hours every day to prevent the seeds from mildewing due to excessive humidity.

5. Management after emergence: Generally, the seeds begin to emerge about 10 - 15 days after sowing. After emergence, remove the covered film in time and gradually increase the light duration, but avoid direct strong light to prevent burning the seedlings. Keep the soil moist, following the principle of "watering when the soil is dry". That is, when the soil surface is dry, water it, and water thoroughly each time. When the seedlings have 2 - 3 true leaves, thin out the seedlings, remove the weak and over - dense seedlings, and keep the strong seedlings to provide sufficient growth space for them. When the seedlings have 4 - 5 true leaves, they can be transplanted into a larger flowerpot or planting area. Try to transplant with soil clumps to protect the roots of the seedlings.

a. Temperature requirements: The germination of hydrangea seeds and the growth of seedlings are relatively sensitive to temperature. If the temperature is too low, the seeds germinate slowly or do not germinate at all; if the temperature is too high, the seedlings are prone to spindly growth and weakness. When sowing in early spring or late autumn, take heat - preservation measures, such as covering with plastic film; in high - temperature summer, pay attention to shading and cooling to avoid the excessive temperature from affecting seed germination and seedling growth.

b. Light management: Hydrangeas need sufficient light for photosynthesis, but in the initial stage of seed germination and the seedling stage, too strong direct light will damage the seedlings. After emergence, gradually increase the light duration, but in the high - temperature period of summer, especially at noon, appropriate shading is required to avoid direct strong light. As the plant grows, the light intensity can be gradually increased to promote the robust growth and flower bud differentiation of the plant.

c. Water control: From sowing to emergence, keep the soil moist, but there should be no waterlogging, otherwise the seeds are easy to rot. After emergence, water the plants reasonably according to the dry - wet condition of the soil. Avoid over - watering, which may cause root hypoxia and rot, and also prevent the soil from being too dry, which will affect the growth of the plants. Generally, water when the soil surface is dry 2 - 3 cm, and water thoroughly.

d. Fertilization points: In the initial stage of hydrangea seedling growth, a small amount of thin nitrogen fertilizer can be applied appropriately to promote the growth of the plant's stems and leaves. When the plant grows to a certain stage and enters the vigorous growth period, the application amount of phosphorus - potassium fertilizer, such as potassium dihydrogen phosphate solution, should be increased to promote the branching of the plant and flower bud differentiation, and improve the flower quality. When fertilizing, pay attention to applying thin fertilizers frequently to avoid burning the roots with concentrated fertilizers.

e. Pest and disease control: Common pests and diseases of hydrangeas include powdery mildew, leaf spot, aphids, red spiders, etc. Keep the planting environment well - ventilated, regularly clean up diseased leaves and plants, and reduce the breeding environment of pests and diseases. Regularly check the plants. Once pests and diseases are found, take corresponding control measures in a timely manner. For powdery mildew and leaf spot, fungicides such as carbendazim and chlorothalonil can be used for spray control; for aphids and red spiders, insecticides such as imidacloprid and abamectin can be used for control.