why called dead sea
Why Called Dead Sea? The sea is called “dead” becau...
Plant growth depends on how much light the plant receives for photosynthesis and how many nutrients are in the fertilizer. Some plants, like orchids, will actually die in direct sunlight so they grow faster inside. Yet other plants, like sunflowers, need direct sunlight to grow really fast and perform better outside.
How Long Should a Plant Grow Light Be Left On? As a general rule of thumb, most vegetables and flowering plants need 12 to 16 hours of light per day, with flowering plants at the top end of that range. Plan on giving most plants at least 8 hours of darkness per day.
Because dark reactions do not require the absence of light, plants will remain healthy when exposed to light 24 hours a day. There are some plants, however, that will survive but not thrive without darkness.
Morning sun is less intense and somewhat filtered, so it is considered the safest bet for plants that require part sun or part shade. On the other hand, the late afternoon and evening sun is strong and less filtered, so it’s best for plants that require full or part sun.
Without sunlight, the plants are unable to convert nutrients and carbon-dioxide to energy through the photosynthesis process. On cloudy days, they produce much less of the energy they need to grow and bloom.
Sun loving plants in general have thicker but smaller leaves that tolerate more light than shade plants. Most vegetables, and some of the best flowers for cutting, need six or more hours of direct sun each day and would be happy with more.
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