You’ve probably heard of spectrum light and how it plays a key role in the stages of your plant growth. If you’re a newbie or a little experience and you are wondering how many Kelvin a bulb should have in the vegetative period, you’ve come to the right place.
We will enlighten you on how to go for the accurate light spectrum, color temperature, and many more. So, read on to gain some knowledge.
Plants are generally required to grow under sunlight and for indoor gardens, we make use of grow light. Some grow lights such as fluorescent bulbs have various colors of light required for various stages of the plant life cycle.
Before we dive into how many Kelvin a bulb should have in the vegetative period, let’s have a brief introduction to various colors of light.
Brief Introduction to Kelvin’s Light colors
One of the plant’s basic needs is light, be it sunlight, grow light, or other types of light that can mimic sunlight. It is essential to supply your indoor plants with the correct light spectrum at their various stages (such as the vegetative period) for optimal growth.
It may seem reasonable to think because the sun supplies white light in full-spectrum, our grow light should be white. This is not true. Sunlight produces different colors of light and the plant receives all these colors.
Therefore, grow light should have these various colors of light. Plants, however, perform well with red and blue light with a little bit of green and yellow. Because sunlight and other forms of light generally consist of various colors. A simple illustration of the light appearance is through color temperature and it can be delivered or provided by light bulbs.
The measurement of the bulb color temperature in a source of light is measured in Kelvin (K) on a scale of 1,000 to 10,000.
As an indoor gardener, you should be familiar with the various color temperatures of bulbs for your plant growth. From the Kelvin scale, the lower end scale has the soft hues of the red spectrum or cool white. On the other hand of the Kelvin end scale, we have the blue light spectrum otherwise known as warm white.
The red spectrum of light is required for the flowering and fruiting period in a plant cycle. It is the blue spectrum of the opposite end Kelvin scale, which is the daylight hue that is required for the vegetative period.
How Many Kelvin A Bulb Should Have During The Vegetative Period
Now let’s get to know how many Kelvin a bulb should have in the vegetative period. The vegetative stage of a plant is between seed germination and flowering stage of plant development.
So, the number of Kelvin a bulb should have in the vegetative period should range from 5,000 to 7,500 Kelvin. They make use of the blue light which is at the extreme of the Kelvin scale which is the daylight hue. It is the daylight hours plants go through their vegetative period.
Grow Light Bulb
We can refer to grow light bulbs as multitasking light bulbs. They mimic the effect of sunlight function on the various stages of your plants’ cycle.
T5 and T8 LED tubes are the most customary type of grow light bulbs used in an indoor garden. The Kelvin range of this bulb usually comes in 6,500 Kelvin more or lesser. So this is the color daylight temperature required by plants especially during their vegetative period.
There are other types of excellent grow lights also. Another light bulb-like LED light is obtainable in 4,100 and 10,000 Kelvin. Note that bulb that supplies light of 4,100 Kelvin is known as neutral looking light. They really don’t do much work with plants that are undergoing vegetative stages.
Light Spectrum For Vegetative Growth
It’s important you get the right color of light for every stage of your plant cycle to grow adequately. The journey of the plant growth and maturity from their seedlings, to adult, flowering, and now fruiting requires different colors of the light spectrum for their growth cycle.
We have concluded that the number of Kelvin a bulb should have in its vegetative period is from 5,000 Kelvin to 7,500 Kelvin. This is the blue spectrum on the Kelvin scale which is the daylight hue. Also, for the flowering and fruiting stage in a plant cycle, the red spectrum is required.