Cosmos are flowering annual plants that are very easy to grow. Flowers are a bit like daisy. There is a broad range of color available like orange, yellow, pink, white, red etc, which blooms throughout the summer season. Easy to grow from seeds and can even survive poor soil conditions. Let’s discuss how to grow Cosmos from seeds?
Starting from Seeds
- Fill the seed tray with good quality Seed Starting Mix/ Potting Mix or you can make one yourself. Can also use pots instead.
- Plant two seeds in each cell or three seeds in each pot.
- Keep the potting medium moist, not soaking wet & don’t let it dry out.
- Ideal temperature range for optimum germination of the seeds is in between 21 C – 27 C (70 F – 80 F).
- Cover the seeds with the same potting mix. As these seeds required darkness to germinate, so can cover the pot either by newspaper or clear/colored plastic sheet to keep the moisture intact.
- Seeds will germinate anything in between 5-10 days, depending upon the seed quality & growing condition.
- Once germinated, thin out the weaker seedling. In case of pot, discard the weakest one and let two plants grow as they protect each other from sunscald & sunburn. The yield will also be good as compared to two different plants.
Transplanting
- Start hardening off seedlings at-least 7 days before transplanting.
- Prepare the garden soil or potting soil by adding well matured compost or fertilizer at-least 7 days in advance.
- Transplant the seedlings once they grow at-least 2 set of true leaves.
- Plant the seedlings around 20 inches apart in ground or 2 per medium sized pot.
- Add 2-3 matchstick tips in the hole with the plant. This will give your plant a much needed Sulfur and Potassium.
- Water it thoroughly.
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