11/24/2023 0 Comments Best grow light for seedsCheck the position of the lights each week and raise them accordingly to keep the distance between plants and lights to no more than 3 inches. ![]() How often should I adjust the grow lights?Ī. Fluorescent bulbs should be placed very close to the plants, no more than three inches away from the soil surface (before seedlings emerge) or foliage (once seedlings sprout.) Tomato seedlings need high intensity light. How closely do I place the grow lights to the seed trays and seedlings?Ī. You also need to figure a way to set it up so the light’s height is adjustable. Probably … especially if it is a fluorescent light. Can I use my shop light to grow tomato seedlings?Ī. The most effective grow lights imitate this aspect of natural light the best. Natural sunlight contains the full spectrum of light. Tomato plants require the full spectrum for photosynthesis, although red and blue are most important. “Full spectrum” refers to light that contains all colors of the rainbow. I hear that I should choose a “full spectrum” light. They also lack blue spectrum light that helps seedlings become stocky and dark green. Incandescent bulbs emit too much heat, which can burn tender tomato foliage. Why are the least efficient grow lights for tomatoes?Ī. They are ideal for starting tomato seeds because they give off very little heat and they provide high intensity light. Fluorescent bulbs are a favorite among home gardeners. What are the most popular grow lights for tomato seed starting?Ī. But if you have 12 hours of strong light in a south-facing window – and if you want to grow just a few tomato seedlings rather than an entire flat – than a windowsill might be a good option for you. These factors make a good case for choosing to start seedlings with grow lights rather than on a windowsill. Second, if you live in a northern area (in the Northern Hemisphere) or southern area (in the Southern Hemisphere), the sun’s rays are also less intense your hours of natural light are shorter than in those areas which are closer to the equator. Only a south-facing window allows enough natural light to grow healthy seedlings during the off season. ![]() ![]() That depends! First, note the position of your window. Should I use grow lights for seedlings instead of growing them on my windowsill?Ī.
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