How to Plant Cosmos


Cosmos are an annual flower that blooms continuously throughout the summer season in a wide variety of colors. They are hardy and easy to grow even in bad soil conditions. The seeds are small but germination usually happens within a few days. Plant your cosmos in an area that need a splash of color in your summer garden.

Things You'll Need

  • Outdoor Area to Plant your Cosmos.
  • Shovel or Garden Claw.
  • Rake.
  • Garden Trowel.
  • Cosmos Flowering Seeds.
  • Potting Soil.
  • Watering Can.
  • Water.

How to Plant Cosmos.

  • Purchase your favorite brand of cosmos seeds at your local mass retail store or plant nursery.

  • Choose a sunny location in your yard where you would like to plant your cosmos.

  • Work up the soil where the cosmos seeds will be planted. Use a shovel to turn over the sod (if needed) and then use a garden claw tool or rake to work the soil into a smooth, broken up consistency.

  • Take your garden trowel or even your finger and create a 'zig zag' divot into the soil where you will plant the seeds. Keep the divots about half an inch apart so the plants grow close together.

  • Take your cosmos seed packet and open at the top. carefully empty the seeds into your hand.

  • Randomly place one or two seeds at a time, two inches apart into the divots.

  • Take some potting soil or fine dirt and lightly cover the sivots where the seeds have been planted.

  • Take your watering can and water the seeded area well.

  • Continue to water well each day until the seeds have germinated.

  • After 14 days, begin to enjoy your bright colored flowering cosmos.

Tips & Warnings

  • You can plant Cosmos just about anytime of the year after it is safe from frost.
  • Cosmos will continuously bloom all summer and fall until the first frost hits.
  • Cosmos are very easy to grow.
  • Cosmos come in a variety of colors such as white and purple to light and bright pinks.
  • Cosmos are hearty and need little care throughout the summer months.
  • You may need stake your cosmos, use a piece of panty hose or string to wrap around the plant and stake to a pole or nearby sturdy object.
  • Cosmos make a great backdrop to any garden or bare outdoor space.
  • Cosmos do best when planted in full sun to partial shade.
  • Some hearty cosmos plants can return the following year.
  • Do not over water your cosmos. Give one thorough watering in the evening and then a small one in the morning if needed.
  • Keep pets and animals out of the planting area until the seeds have germinated and sprouted.
  • If using a garden claw to till up your soil, be sure to wear proper footwear to prevent hurting your feet.

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