Tomatoes are long-season, heat-loving plants that won’t tolerate frost, so it’s best to set them in the garden as transplants (young plants) after the weather has warmed up in spring.
Quick to germinate and grow, tomato seeds are best sown indoors about six weeks before your average last frost date.
Here’s what you’ll need to start tomato seeds indoors:
There are hundreds of tomato varieties available as seed. Here are a few things to consider:
- Decide on the type of tomatoes you want.
- Consider the size of the mature plants.
- Look for disease-resistance.
Even though it’s known as “potting soil”, the best medium for seed starting has no soil at all. Use a sterile, soilless mix that’s labeled for seed starting. Never use garden soil, which often drains poorly and may harbor disease organisms.
You can start your seeds in just about anything that holds soil and has drainage holes like small yogurt containers and even egg cartons with holes poked in the bottom and waterproof saucers underneath. However, we’ve found it more convenient to use purchased pots, such as biodegradable pots and seed-starting trays.
4. Warmth and Light
Seeds germinate best at warm room temperature. Once they’re up and growing, seedlings grow best in cool room temperature.
Although you can start your tomatoes on a sunny windowsill, you’ll get better results growing them under some type of grow light. Winter and early spring sunlight isn’t nearly as intense as summer sunlight, and there are fewer hours of daylight. Insufficient light can lead to weak, spindly plants. A light garden with adjustable lights is ideal for seed-starting.
- So, moisten the seed-starting mix, and then fill the containers to within 1/2″ of the top.
- Place two or three seeds into each container and cover it with soil, then gently firm it over the seeds.
- Moisten the top layer.
- Place the pots in a warm place.
- Keep the mix moist but not soaking wet.
For the strongest, healthiest plants you’ll want just one seedling per pot. Select the strongest, healthiest seedling and try to transplant the extras into different pots (but be careful NOT to disturb roots of the actual remaining plant).
We hope that we could help with tomato indoor planting. Share this article to help your friends and family and leave your way of planting tomatoes at home in the comments section below.