Color-leaf grass is a warm-season plant known for its strong adaptability. It thrives in temperatures that don't drop below 10°C during winter and prefers partial shade in summer, but still needs sufficient sunlight to maintain vibrant leaf color. The right balance of light ensures the leaves stay bright and healthy.
This plant grows best in well-drained sandy loam rich in humus. When planting, use bone meal or compound fertilizer as a base. During the growing season, apply organic liquid fertilizer every 10 to 15 days, but avoid using it during the hot summer months. Be careful not to let fertilizer touch the leaves, as this can cause damage or burning. Insufficient light can cause the leaves to lose their color and the plant to become leggy. In addition to keeping the soil moist, regularly mist the leaves with clean water to remove dust and maintain their shine. Pinch back the growing tips several times during the seedling stage to encourage bushy growth and a full appearance.
After flowering, leave 2 to 3 nodes on the lower part of the branches and cut off the rest to promote new growth. The ideal temperature for growth is around 20°C. During cold weather, move the plant indoors, ensuring the room temperature stays above 10°C. Water carefully, keeping the soil consistently moist but not soggy, as overwatering can lead to root rot.
Potted plants should be placed in small containers, starting with an inner diameter of about 10 cm. After 20 to 30 days of care, they can be transplanted into pots up to 15 cm in diameter. Choose a south-facing window for indoor placement to ensure enough light. Keep the soil evenly moist, provide good air circulation, and maintain a clean environment. For outdoor care, provide shade during the summer months. Apply a diluted liquid fertilizer three times a year. If the main stem becomes too tall, prune it promptly. Before the plant sets seed, remove the flower spike early, as it can make the plant look sparse and reduce its ornamental value. In early October, move the plants to a greenhouse for wintering. At this time, you can also trim the old plants and repot them. The largest pot size should not exceed 14 cm, as larger pots may be inconvenient to manage.
Once the colored seeds mature, they tend to fall off naturally, and they are also vulnerable to strong winds. Therefore, when the bracts turn yellow, gently cut the spikes and thresh them one by one. Although some seeds may germinate, they are not cold-resistant and cannot reproduce effectively on their own.
To preserve the desirable traits of the variety, sowing is typically used. However, if certain varieties cannot be maintained through sowing, cutting propagation is recommended.
Cuttings can be done year-round and have a high survival rate. They can be taken during pruning or topping, using 10 cm sections of healthy shoots. Insert the cuttings into clean, sterilized river sand, making sure the portion that will develop roots is buried. Provide shade and keep the soil moist after cutting. Rooting occurs faster in warmer conditions, but avoid overwatering to prevent root rot. It usually takes about 15 days for roots to form. Alternatively, you can place the cuttings in water: use boiled water cooled to room temperature, add 2-3 sections of the upper part of the stems, remove the lower leaves, and place them in the water. Once white roots grow to 5–10 mm, transplant them into pots.
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