If your seeds need to be sown in pots or trays to start, never use garden soil as it maySeedlings in tray well contain weed seeds and other unwanted pests. Use a good quality seed or general purpose compost that is recommended for seed sowing. If you are sowing directly into the soil outside, it needs to be broken up to a fine consistency (tilth) and be moist but not too wet.

See Also:

Correct Watering

Correct Temperature

Correct Sowing Depth

Light