The favorable range to grow tomatoes is between 70 and 79 degrees Fahrenheit... 2. Tomatoes are a staple in my indoor and outdoor gardens and throughout the rest of this post, I will review the basics of growing tomatoes indoors so that you can grow at home and enjoy the fruit of your harvest year round. A large south-facing window is ideal. If you are planning on growing your tomatoes in a greenhouse, you can start sowing seed earlier, from late February to mid-March. Learn Which Vegetables Can Grow Well Indoors 1. Growing tomatoes indoors requires a LED that has a broad-spectrum range of color. These cherry tomatoes were grown in a Bamboo LED Grow Light Garden in the Gardener's Supply Testing Lab. A large south-facing window is ideal. Containers: Any small pot or container, at least 3 inches deep, will suffice,... Potting Mix: Potting mixes are blended to absorb water well, but also let the excess drain. The young seedlings need to be kept at around 18°C (64°F). Tomatoes require 8 hours of daily illumination for efficient fruit production. What's also great is that the modern grow lights that use LED technology are extremely energy efficient, so you don't have to worry about the grow light causing a massive increase in your energy bills. Due to their high sensitivity, tomatoes may experience stunted growth if exposed to cold temperatures.Therefore, LED grow lights are necessary for indoor cultivation. Alpine strawberries flowering and fruiting in a Low Bamboo LED Grow Light Garden. From October 28 till February 14 our daylight is less than 10 hours. Light: Indoor tomatoes require 12-16 hours of light a day.Even plants in a sunny window or in a greenhouse may need a few extra hours under grow lights during winter’s short days. 4. To brighten up the area, even more, consider painting the surrounding walls white, or even placing a reflective camping blanket nearby to help reflect the light. The size of your pot will depend on the seed variety you’ve chosen. Probably the most important of all these is sufficient lighting. Temperature. You should either get regular potting soil or buy a seed starter mix. If you notice we only listed LED lights for growing tomatoes with artificial lights, wondering why? If you don't have a window that will work, install plant grow lights and grow the tomato plants under lights. Use unglazed pots that will breathe, with good drainage holes when growing indoor tomatoes. To brighten up the area, even more, consider painting the surrounding walls white, or even placing a reflective camping blanket nearby to help reflect the light. The light-emitting diode (LED), while expensive, offers many benefits over traditional grow lights for your indoor tomatoes. We often call our window room a greenhouse, but technically it is not. Yes, all plants need light for photosynthesis and tomatoes are no exception. 1. A sunroom or a bay window would also work very well. 2- As your tomato plants grow, you will need to continue to change the height of your lighting system. Most of the varieties of tomatoes require a high level... 3. Here is the answer: LED grow lights produce more light per watt than the other lights such as HID or fluorescent.