What are the methods of propagating cosmos?

1. Seed propagation

1. Time: Generally, seeds are sown in summer, which is more conducive to survival.

2. Substrate: Prepare the substrate for sowing, which should be loose and well-drained, and not too sticky. Disinfect before use to prevent accidents later.

3. Process the seeds: Soak the seeds in warm water for more than 3 hours. The seeds will absorb water and swell, which will be more conducive to their later germination.

4. Sowing: Place the seeds on the substrate and cover them with a thin layer of soil. You can use the soaking pot method to add some water and keep it moist.

5. Late stage: After the seedlings grow out, they can gradually receive light. You can pull out those that are in poor growth condition and leave the healthy ones.

2. Cutting propagation

The substrate for cuttings must be selected first, and then the top shoots that are healthy and free of pests and diseases are cut as cuttings and inserted into the substrate. Then pay attention to the maintenance conditions. Do not expose the plant to too much light, otherwise it will cause water evaporation and be detrimental to survival. The temperature also needs to be ensured. 18-25℃ is the most suitable range. Wait for rooting before transplanting.