How To Grow Tomatoes From Seed. Scatter the seeds evenly over the compost and cover with vermiculite. How to Grow San Marzano Tomatoes from Seed.
Tomato seeds germinate best at a temperature between 70 to 80 degrees Fahrenheit. Fill your pot with seed compost leaving a couple of centimetres below the rim. Place your seedlings in a very bright south-facing window or under fluorescent lighting.
You will need either a grow light setup cheap shop lights or a south-facing window that gets plenty of sun if you live in the southern hemisphere you will.
You will need either a grow light setup cheap shop lights or a south-facing window that gets plenty of sun if you live in the southern hemisphere you will. Make sure to put your greenhouse dome on until germination most seedling starter trays come with one. The best growing season for tomatoes is summer which is why most seed packets recommend starting your seeds 4-6 weeks before the last frost date. Doing so allows your plant to go through the whole germination and growth process and be ready to bear fruit when warm weather arrives.
