FLS006 Eustoma grandiflorum Seed (200 seeds/bag) mix color

·     This pack contains 200 seeds of double - flowered Eustoma grandiflorum. The seeds are small, dark brown, approximately oval in shape, with fine textures on the surface. Double - flowered Eustoma grandiflorum belongs to the Gentianaceae family and is a perennial herb. The plant height is generally between 30 - 100 centimeters. The stems are erect and relatively slender. The leaves are ovate or long - elliptical, opposite, with a thin texture and a fresh green color. Its flowers have a double - petaled structure, with numerous petals overlapping layer by layer, arranged closely and regularly, forming a full and gorgeous flower shape. The flower colors are rich and diverse, covering various colors such as white, pink, purple, blue, etc., and each color has different shades. The flower diameter is usually between 5 - 8 centimeters. Double - flowered Eustoma grandiflorum has extremely high ornamental value and is often used for cut - flower production. It can maintain a beautiful posture for a long time in flower bouquets and flower - arranging works, adding a romantic and elegant atmosphere to floral works. At the same time, it is also suitable for planting in courtyards, balconies, and other places to beautify the environment and create a warm and charming landscape effect.

1. Soil preparation: Select loose, fertile, well - drained and slightly acidic soil, with a pH value between 6.0 - 6.5 being appropriate. Mix peat soil, perlite, and vermiculite in a ratio of 3:1:1 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 the seeds of double - flowered Eustoma grandiflorum are small and have a relatively low germination rate, to improve the germination rate, wrap the seeds with a wet paper towel and place them in an environment of 25 - 30℃ for germination. Rinse them with clean water once a day to keep the paper towel moist. After about 3 - 5 days, when some seeds show white, they can be sown.

3. Sowing operation: Because the seeds are very 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, keeping the seed spacing at about 1 - 2 cm 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 vermiculite powder to maintain the humidity and air permeability around the seeds. Note that the covering soil should not be too thick to avoid affecting seed germination.

4. Moisture and light preservation: After sowing, use a sprayer to gently spray water to keep the soil moist. Cover a layer of plastic film or plastic wrap on the seed - raising pot or planting container to maintain humidity and temperature. Place it in a brightly lit place but avoid direct sunlight. The suitable germination temperature is 20 - 25℃. 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 7 - 10 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 1 - 2 cm, 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 double - flowered Eustoma grandiflorum seeds and the growth of seedlings are relatively sensitive to temperature. If the temperature is lower than 15℃, the seeds germinate slowly or do not germinate at all; if the temperature is higher than 30℃, the seedlings are prone to spindly growth and weakness, and may also affect flower bud differentiation. When sowing in early spring or late autumn, take heat - preservation measures, such as using a greenhouse or covering with plastic film; in high - temperature summer, pay attention to shading and cooling, and a sun - shading net can be set up to avoid the inappropriate temperature from affecting seed germination and seedling growth.

b. Light management: Double - flowered Eustoma grandiflorum needs 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 from 11 a.m. to 3 p.m., 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. However, during the flower bud differentiation period, short - day conditions (less than 12 hours of light per day) are conducive to flower bud formation, and the light duration can be appropriately controlled.

c. Water control: From sowing to emergence, keep the soil moist but not waterlogged, 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 1 - 2 cm, and water thoroughly. In high - temperature summer, the water evaporation is fast, and the watering frequency can be appropriately increased, but avoid watering during the high - temperature period at noon; in low - temperature winter, reduce the watering frequency and keep the soil slightly moist.

d. Fertilization points: In the initial stage of double - flowered Eustoma grandiflorum 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 should be increased. For example, spray a 0.2% - 0.3% potassium dihydrogen phosphate solution every 10 - 15 days 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. Before the flowering period, some fertilizers rich in trace elements such as boron and zinc can be appropriately added, which helps to increase the number and quality of flowers.

e. Pest and disease control: Common pests and diseases of double - flowered Eustoma grandiflorum include root rot, gray mold, aphids, thrips, 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 root rot, improve the soil drainage conditions, avoid over - watering, and use fungicides such as carbendazim for root irrigation; for gray mold, timely remove the diseased leaves at the initial stage of the disease and use fungicides such as procymidone and iprodione for spray control; for aphids and thrips, use insecticides such as imidacloprid and acetamiprid for control, and at the same time, hang yellow boards to trap adult insects.