Sunlight is one of the most essential requirement for plant growth. However, it is not possible to have abundant sunlight around the year. Also, there are places that receive little sunlight throughout the year. Even houseplants do not grow properly in the absence of direct sunlight. To ensure a normal and healthy growth of plants, it is a must that they receive a desired amount of light. Artificial lighting is one way of substituting the natural light. A special LED grow light for indoor plants can imitate the sunlight in terms of spectrum and intensity, thus ensuring healthy growth of plants. Let us understand the various parameters of grow lights and their types. More on indoor plants that don’t need sunlight.
LED Grow Lights For Indoor Plants: Parameters and Requirements
Sunlight consists of a broad spectrum of colors ranging from red to violet. Moreover the intensity of these colors also differs a lot. All plants do not require same color of light and intensity for their growth. Plants absorb only the desired amount of sunlight from the available spectrum. Thus, while choosing 1200W LED grow lights for indoor plants, you should understand the specific light requirements of plants you wish to grow. Given below are a few parameters against which you need to evaluate the light requirement of plants.
As mentioned above sunlight is composed of broad color spectrum. Red and violet color are required the most for the process of photosynthesis. Red color stimulates vegetative growth and flowering, whereas violet color is responsible for plant growth. Thus, violet is the most crucial light color for stocky seedlings and growing foliage. However, if the plants receive too much of any of these lights, it can affect their normal growth. For instance, too much of red light can make plant tall and spindly. Hence, it is a must that you know what is the right light color for your particular vegetation. More on low light house plants.
The correct wattage of grow light bulb is equally important for promoting healthy growth of plants. Light intensity can be adjusted by choosing a correct wattage of bulb and placing the plant at right distance from the light source. For instance, begonias and African violets grow well when placed at about 12” from a 40W bulb, whereas non flowering plants like philodendrons can be placed at farther distance (about 36”). Some flowering plants like orchids need a a very high intensity light for their growth. More on low light indoor plants.
Sunlight is not available throughout the day, all around year. Thus, plants adjust their growth mechanism so that they can utilize the maximum amount of sunlight when available. For the rest of the time, plants can do without sunlight. Due to this predisposition, you cannot subject plants to continuous exposure to artificial light. You need to know the right duration of light to be provided to a particular plant species. Plants need about 8 to 18 hours of light, depending upon their individual requirements. More on low light plants.
Types of Grow Lights For Indoor Plants
Incandescent lights which are the common source of home lighting can also be used as grow lights for indoor plants. These light sources have a good wavelength of red light but poor wavelength of blue light. Fluorescent lights are very cheap grow lights for indoor plants, which give about 3 times of light for the same energy input as the incandescent light. You may choose cool light (rich in blue, yellow, green) or warm light (rich in red, orange), depending upon the individual requirement of your plant species. Full spectrum fluorescent lights are also available which comprise of a perfect balance of cool and warm light. High intensity discharge lamps are yet another type of grow light which are extremely expensive. They are mostly used for commercial vegetation by professional horticulturists. There are several types of high intensity discharge lamps available varying in light color and intensity.
Also read more on indoor gardening.
You can grow seasonal flowers and vegetables round the year by using grow lights for indoor plants. If you are a commercial horticulturist, your business need not get affected due to bad light or weather. You can easily adjust the grow light settings to provide your plants with ample light.