Grow A Tomato UK

Surprising Vegetative Growth with Blue LED Grow Lights

10 December 2010 | BrianRS

Every indoor grower will go through two phases in order to reap a bountiful harvest, vegetative and flowering cycles. Plants in vegetative growth cycles are mainly using wavelengths of light in the blue spectrum, specifically the 415nm-460nm range, while plants in the flowering cycles use the red spectrums of light. Spectrums of blue light can be found more prevalently in the spring months when plants are growing structure and leaves (vegetation). Lately, growers have been finding great success in the vegetative cycle of growth with all blue LED grow lights because they emit so much blue light and do not create extreme heat. Some all blue LED grow lights have multiple shades of blue LEDs to allow for a broader range of light absorption without wasting light on colors that are not needed for vegetative growing.
All blue LED grow lights have been shown to grow very dense vegetative growth and increases fruiting sites on most plants due to the density of growth. Another common result with all blue LED grow lights is a fast start to seedlings and clones and very productive mother plants.
As with any LED grow light caution is a must when deciding which light company to choose. Like other grow lights, all blue LED grow lights can range in quality and performance. Quality is the most important factor when buying LED grow lights due to the high upfront cost. Smart indoor growers will always try to recover their costs as soon as possible and if the light you purchase only works for a short time(less than 1 year) it will be almost impossible to recover your upfront costs. Always look for a supplier of LED grow lights that offers at least a 90 day guarantee and at least a 3 year warranty to ensure you will be satisfied with the results.
Remember, all blue LED grow lights are only good for vegetative growth and will not perform well during the flowering phase of growth. During flowering you will need to include red light to enhance and trigger dense flower production.