Homemade Seed Starting Mix – 2023

Posted on

Homemade Seed Starting Mix – 2023

Why Homemade Seed Starting Mix?

Starting seeds indoors is a great way to get a head start on your garden. By making your own seed starting mix, you can ensure that it is tailored to the specific needs of your plants. Homemade seed starting mix is not only cost-effective but also allows you to have complete control over the ingredients used.

What is a Seed Starting Mix?

A seed starting mix is a growing medium specifically formulated for starting seeds. It provides the necessary nutrients, moisture retention, and aeration to promote healthy seed germination and seedling development.

How to Make Your Own Seed Starting Mix

Step 1: Gather the Ingredients

To make your own seed starting mix, you will need the following ingredients:

  • Peat moss or coconut coir
  • Vermiculite or perlite
  • Compost or well-rotted manure
  • Optional: organic fertilizer

Step 2: Mix the Ingredients

Combine equal parts of peat moss or coconut coir, vermiculite or perlite, and compost or well-rotted manure in a large container. If desired, you can add a small amount of organic fertilizer for an extra nutrient boost.

Step 3: Sterilize the Mix (Optional)

If you want to minimize the risk of diseases or pests, you can sterilize the seed starting mix by heating it in an oven at 180°F (82°C) for 30 minutes. Allow the mix to cool before using.

Step 4: Fill Seed Trays or Pots

Fill your seed trays or pots with the homemade seed starting mix, leaving a small space at the top for watering. Gently firm the mix to ensure good contact with the seeds.

Step 5: Sow Seeds

Sow your seeds according to the recommended depth and spacing for each plant variety. Label your trays or pots to keep track of the different plants.

Step 6: Water and Provide Proper Care

Water your seeds gently using a misting spray or a watering can with a fine rose attachment. Place the trays or pots in a warm and bright location, such as a sunny windowsill or under grow lights. Keep the soil consistently moist but not waterlogged. Provide adequate ventilation to prevent damping off or fungal diseases.

Tips for Success

  • Use fresh, high-quality ingredients for better results.
  • Avoid overwatering to prevent seed rot or fungal issues.
  • Transplant seedlings into larger containers once they have developed their first set of true leaves.
  • Harden off seedlings gradually before transplanting them into the garden.
  • Experiment with different ratios of ingredients to find what works best for your plants.


Making your own seed starting mix is a rewarding and economical way to kickstart your garden. By following these simple steps, you can create a customized mix that provides the perfect environment for your seeds to thrive. Happy gardening!

Leave a Reply

Your email address will not be published. Required fields are marked *