There is no better advice for growing indoor plants than “provide the correct light and right amount of light”. Although every factor involved in indoor growing is important for a successful harvest, the correct and right amount of lighting is the most important factor of all.
Indoor horticulture is greatly optimized by the use of LED grow lights. The efficiency and cost effectiveness of LEDs along with their several other advantages has bound indoor gardeners to utilizing LED grow light technology to grow their plants.
Here’s a complete guide to harvesting a successful yield of your indoor plants.
LED Grow Light Setup and Canopy
The optimal level and correct balance of the wavelengths of light is very important for plant growth and flowering. This level for flowering process is between 400 and 700 uMoles/m-2/s. Ensure that your lighting has an optimal blend and the correct amount of light is evenly distributed over the plant canopy.
LED Light Placement-
- Your LED grow light should be positioned 18-36 inch away from the plant during vegetative cycle and the plants should be allowed to grow towards the light source and find their happy equilibrium during flowering.
- LED grow light and techniques such as SOG and SCROG work great. These tactics facilitate the plants getting more exposed to the light with minimal or no shading. Even if you don’t use the techniques, apply proper pruning and topping.
- Remove all the larger leaves that may cause shading of lower flower sites. Once the larger fan leaves are removed, the rest of the plants will receive even and proper lighting. By the flowering phase the canopy is very even with the canopy growing towards and finding its equilibrium distance to the light source.
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Temperature is a metabolic regulator for plants on earth. A myth that has been perpetuated about growing indoor plants is that plants die in hot temperature conditions. If the temperature is extremely high and dries out the plants, they will die. However, typically some heat is good as the plants will grow better at a balanced grow room temperature in the 78-85 degrees Fahrenheit range. As the temperature for metabolism of plants increases, the result is an increased demand for water, CO2, oxygen, and nutrients. The growth of the plant increases and becomes faster when all the parameters are met.
What Are the Temperature Requirements of Plants?
- Plants require warmer ambient condition. The optimum temperature accepted by most plants is 78-85 degrees Fahrenheit at 360PPM.
- Infrared (IR) is very beneficial to plants. As the leaf absorbs IR, the leaf gets heated and temperatures rise 5-7 degrees higher than the air temperature. For grow lights that are rich in IR, air temperature 78F means 83F-85F as far as the plant’s metabolism is concerned.
- The air temperature conditions during the last two weeks can be lowered by 3F to 5F. This will enhance the ripening process of the flowers.
- You can manage the air temperature higher than 85F when CO2 supplement is 1000 PPM. NOTE: The concentration of CO2 above then 3000 PPM is dangerous for humans and pets.
- Remember to take care of the root temperature, which if not monitored and controlled, can starve the roots of oxygen. When the air temperature is 85F, the root temperature is around 75F. Anything above 75F at the root level will drop the oxygen saturation of roots. The pathogens for root require low oxygen and higher temperatures.
Nutrient Concentration and Humidity Control
When growing with LED grow lights, it is Since LED grow lights are much more efficient at photosynthesis than traditional lighting sources, the amount of nutrients needed is less than what would be needed with fluorescent lamps or high intensity discharge bulbs. Reduce nutrient feeding by 1/3 and use plain water for watering the plants. Do not over fertilize your plants and let the soil dry before watering again. Monitor the growth of your plants and enjoy the satisfaction of growing in your indoor garden.