How to cultivate dahlia seeds
An introduction to the cultivation of dahlia seeds and the planting methods and timing related to green plants and flowers, following this, the editor will introduce to netizens.
Dahlias, also known as大理花 (Dali flowers), have a long blooming period, from summer to autumn, and are extremely beautiful. There are currently seed sowing, cutting, and division methods for planting dahlias. The seed sowing method involves scattering seeds on the soil and then covering them with soil and watering; the cutting method is usually carried out in summer, and watering is necessary after cutting; the division method involves dividing the tuberous roots of dahlias first, followed by potting or ground planting. Among these, the division method has the highest survival rate. Let's discuss this in detail below.
1. Seed Sowing
The seed sowing method is commonly used when planting dahlias. Scatter some plump dahlia seeds on the soil in March to April; then cover them with a thin layer of soil 0.5 cm thick and water thoroughly to keep the soil moist. Seedlings can emerge in about a week; be careful not to expose them to strong sunlight.
2. Cutting Method
Choose fertile and loose soil and carry out cuttings in summer. First, remove the lateral branches of the dahlia, leaving 3 nodes; insert 2 nodes into the ground and leave 1 node above the ground. Water immediately after cutting, and the cuttings of dahlias usually take about 3 weeks to root.
3. Division Method
The division method is the most successful in terms of dahlia planting survival rates and is also relatively simple. Divide the tuberous roots of dahlias, ensuring that each divided root has 3 terminal buds; without terminal buds, new plants cannot grow. Then pot or plant in the ground. Water after planting, ensuring the soil is "damp but not dry" and without积水. Seedlings can emerge in a week.
4. Daily Maintenance
Dahlias prefer a semi-shaded, cool growing environment. Place them in a location with scattered sunlight and good ventilation, and control daily sunlight exposure to 10-12 hours. Temperature requirements are not high, keeping it between 8-35°C is sufficient. Dahlias enjoy fertilizer; adequate nutrition can make the flowers larger and more vibrant. Generally, fertilize every 10-15 days during the seedling stage and every 7-10 days after the bud formation, stopping during the bud coloring and high-temperature seasons. For water management, dahlias are not drought-tolerant and fear waterlogging. Watering should be done when the soil is not dry and water thoroughly, maintaining a "damp but not dry" condition.
The above content about how to cultivate dahlia seeds and the planting methods and timing is for reference by green plant enthusiasts.