What Color Grow Light Is Best For Succulents

Light for succulent growth

It’s time to set up your grow lights after choosing the best ones for your succulents. Find a location in your home where you can install the lighting and the plants. &nbsp

It’s crucial to leave enough of space between your succulents and the light. If you’re too close, the heat from the bulbs could damage your succulent. If it is too distant, there won’t be enough light for the succulent to develop healthily. In general, it should be at least 6 inches long and no longer than 40 inches. Of course, additional factors affect the precise distance.

A 10-inch spacing is adequate if you use LED or fluorescent lamps without any tricks. However, you can narrow the gap to 6 inches when using larger succulents.

The plant’s tolerance for heat and light also influences the distance. Maintaining the ideal light and temperature for your plants while not wasting any electricity is a tricky balance.

Water inside the cells of the leaves, trunks, and stems may heat up if they are 5 inches or closer from the light. Your plant will eventually become scorched or suffer from dehydration. The following are some fundamental guidelines for using grow lights:

Don’t let the plants stand with the light source at just one angle. Instead, turn the plants over once a week so that all of their sides receive the same amount of light.

Keep a watch on your succulents when you move them indoors to observe how they respond and make any necessary adjustments. Your indoor succulent plants will be strong and content with the optimum grow light and routine hydration.

With our selection of the best indoor succulents, enjoy your gardening. They are fantastic for any house, workplace, or garden to create the ultimate green area because they are simple to cultivate, very versatile, largely pest-free, and low care.


The spectrum of light, both visible and invisible, is measured in nanometers. Visible light, sometimes referred to as photosynthetically active radiation, has a wavelength that ranges from 400 to 700 nanometers (PAR). The light wavelengths that plants can really employ for photosynthesis are known as PAR.

You’ve probably heard the terms “blue light” and “red light” when referring to grow lights. These two kinds of light refer to various divisions of PAR that plants use for particular purposes during photosynthesis. Red light, which exists in the 580-700 nanometer range, aids in blooming and fruiting, whereas blue light, which exists in the 400-490 nanometer range, aids in vegetative growth.

Many of the grow lights on the market right now are “full-spectrum lights,” which means they cover the entire PAR spectrum as well as a little bit more. However, you may also come across grow lights made expressly to cover the blue or red light spectrums, which can help you adjust the light to meet your intended growing objectives.

Light Output

Lumens are used to quantify light output, which is the power and intensity of the light emitted from a light source. The brightness of the light increases with the lumen rating. A grow lamp that is adequate for succulents has a brightness rating of 2300 to 9300 (about equivalent to full daylight) per square foot.

Power and Efficiency

A grow light’s power consumption is expressed in watts. You must grasp lumens (light output factor) per watt in order to comprehend a grow lamp’s efficiency. The light is more energy-efficient and uses less energy when the number is greater.

Are succulents suited for a grow light?

The quick answer is that it’s not always a good idea, although it sometimes is. Your succulents will probably make it through the winter with no problems if you have a window that receives bright light all day. There won’t be as much light as there was in the summer, though, as the days get shorter.

Succulents begin to spread out and lose their vibrant colors and compact shape if they don’t receive enough light. They would merely prefer more light, but they are still alive and generally healthy. Succulents frequently extend throughout the winter because of the fewer days.

Keep your succulents vibrant and compact by using a grow light. By doing this, more brilliant light is added during the day. Without a grow light, I’ve kept succulents inside during multiple winters, and they’ve survived. Many of the succulents are seriously stretched by the time spring arrives, but I trim them before planting them outside.

However, I have made the decision that I want to stop my succulents from spreading out this year, so I bought some grow lights.

Which grow light color is ideal?

Although not all grow lights are created equal, they all provide plants with the energy they need to transform light into nourishment. Consider the following categories to gain a better understanding of the variations in grow lights now available on the market.

Light spectrum

Most plants require a variety of colors to survive. Despite the fact that typical grow lights appear clear or white to the unaided eye, they actually emit a variety of colors in varied intensities. This type of light is called “full spectrum.” There are some hues in that spectrum that are particularly beneficial to houseplants.

  • Plants need chlorophyll to flourish, and blue light aids in the production of this pigment. Young plants and seedlings benefit by having more favorable conditions for germination and root growth.

What kind of light are succulents most suited to?

I don’t have much experience growing succulents in cold temperatures and dark winters because I live in sunny Southern California. I’m fortunate enough to be able to leave my plants outside all year long without significant frost or low light harm. I am aware that many of you reside all over the world and are unsure of what to do with your plants now that you have brought them indoors for the winter. Perhaps despite the fact that you have your plants on window sills, they are still growing languidly, or perhaps the winters in your area are completely dark. Look nowhere else! I’m very happy to have indoor plant growing specialist Ben Thorton here with us today to share his knowledge about using grow lights to support the growth of your lovely garden regardless of the lighting situation!

Succulents have recently risen to the top of the list of preferred indoor plants because of how attractive they are, how they enhance the atmosphere of your home, and how little maintenance and water they need compared to other indoor plants. Many people are reluctant to grow succulents in regions with short summers because they are warm-weather and sun-loving plants. You might be shocked to learn that even if you live in a climate with distinct seasons and chilly, gloomy winter months, you can still grow succulents all year round. Once the weather becomes cooler, just move the succulents inside and provide the artificial lighting they require. Here is a simple tutorial on growing succulents indoors and under artificial lights if you are unsure about using grow lights or worried that you might harm your plants by using them.

Artificial lighting can be categorized as either lighting used in addition to natural lighting or lighting utilized to perfectly mimic sunlight in situations where none actually exists. Since vitamin D, one of the most important vitamins in the human body, is obtained from sunlight, artificial light cannot replace it for humans. In contrast to other living things, plants just require the light itself from the sun. Photosynthesis is a process that takes place when plants are exposed to light and provides them with the energy they require to grow. Succulents can be grown indoors under artificial light just as well as outdoors in natural sunshine, provided that the right amount of light is provided. To successfully grow your succulents in your house, you will need to select the best lights and understand a few basic lighting techniques.

There are a few considerations to keep in mind when selecting artificial lighting for an indoor garden. And they are as follows:

How strong and bright is the light produced by the grow lights?

The brightness of the light produced by grow lights is the most important factor to consider because it will affect how much light the plants receive and how well they can grow. You need lights for succulents that produce at least 2,000 lumens per square foot of illumination. 10,000 lumens per square foot are produced by noontime direct sunlight, but if you run 2,000 or more lumen lamps for 14 or more hours a day, the plants will receive almost the same amount of light as they would in the height of summer.

What is the light’s wattage?

Another item to consider is the wattage of the grow lights you buy, as this will have an impact on your electricity bill. You pay more for electricity the more watts a light uses, therefore you don’t want to choose a light that is brilliant but uses a lot of watts because that will be very expensive. To get the best of both worlds—bright light for your plants and minimal electricity consumption for you—look for lights that are marked as energy efficient. These lights will likely have a high lumen count and low wattage, giving you the best of both worlds.

What color temperature range does the light produced by grow lights fall into?

Because succulents love the sun and prefer bright light to shadow, they also need a particular light with regard to the color temperature of the light. The visible color that the grow lights emit is essentially their color temperature. Kelvins are used to measure this. To provide the light that plants require to thrive, light must fall within a certain range of color temperatures. Starting at roughly 5,000 Kelvins, the ideal color temperature for succulents will provide your succulents cool, full-spectrum light that closely resembles sunlight.

How much heat is emitted by the light?

Finally, it is crucial to understand how much heat the grow lights emit. If they produce a lot of heat, you can experience a problem with the temperature in the space where you grow your succulents, which would require you to invest extra money in a reliable ventilation or cooling system. Additionally, if lights produce a lot of heat, you will need to situate your plants farther away from the lights in order to prevent them from burning them. Your plants may not receive enough light as a result. Some typical grow lights are known to emit a lot of heat, while others remain cool to the touch even after being on for 24 hours. Make sure a grow light doesn’t produce too much heat before you buy one.

I would advise you to purchase T5 grow lights since they have all the qualities of a good grow light and I have experience working with many various types of grow lights. Their diameter is 5 eights of an inch. T5 grow lights are available in a variety of configurations, including two different lengths (2 ft and 4 ft bulbs), numerous different bulb counts (from 1 to 12 bulbs in one fixture), various efficiency types (Normal Output (NO), High Output (HO), and Very High Output (VHO), and various color temperature varieties (from only 2,900 Kelvins up to 10,000 Kelvins). I typically use high output (HO) bulbs because a 2 foot HO T5 bulb uses just 24 watts and produces 2,000 lumens, compared to a 4 foot long high output (HO) T5 bulb that uses 54 watts and produces 5,000 lumens. You obtain incredibly effective light that is ideal for succulents if you mix one or the other length bulbs in a group of two or more bulbs and choose bulbs that are in the color temperature of 6,500 Kelvins.

Although choosing the correct artificial light is an important aspect of effectively growing your plants in an indoor garden, there are a few other factors you should be aware of in order to do even better.

Be aware of the height at which you should hang your plant canopy’ grow lights.

Knowing how high to hang your grow lights is essential since it affects how much light the plants receive. You must hang grow lights so that they may provide the maximum amount of light to the plants without overheating them by radiating heat, regardless of whether you select T5 fixtures or select other grow lights. In order to reduce the risk of your grow lights burning and harming your plants, I would first advise placing any grow light at least 6 to 8 inches away from the tops of your succulents. You can later move your lighting fixtures closer to the succulents if you discover that they don’t emit heat and are cold to the touch (like T5 grow lights).

Determine the light cycle

Because there won’t be a sun to determine when plants receive light, you must determine the plants’ light cycle while growing plants indoors under grow lights. Knowing your light cycles will help you grow your succulents more quickly. Indoor gardens use light cycles to replicate day and night circumstances. Succulents will also develop more quickly if you give them more light, which is a common rule of thumb for growing any plants under lights. If you’re overwintering the plants, I’d recommend starting with a 20/4 light cycle for the succulents. This means leaving the lights on for 20 hours a day, turning them off for 4 hours, and then gradually extending the darkness time until the light cycle is 16/8 (light/dark). Succulents require knowledge of the winter solstice so they can begin their dormant period. If you use grow lights all year for your succulents, you may set the light cycle to 24/0 or 20/4 in the summer to help them develop swiftly and flourish.

Learn how frequently to water your succulents.

Finally, it should be noted that watering is equally crucial because both inadequate and excessive watering might harm your plants. Even if you’re using grow lights to simulate summer, you still need to water the succulents during the summer by watering them once the soil is dry. Even if succulents are cultivated indoors, things change over the winter. Succulents use substantially less water while they are dormant throughout the winter or an imitation of winter since they are either growing very slowly or not at all. So, how frequently should you water succulents in the winter? In general, I’d advise watering them every two weeks, but if the room is hot, you’ll need to water them more frequently because the heat will cause them to dry out more quickly. Looking at the soil in which succulents are growing will tell you how frequently they need watering during the winter. Allow the soil to dry up completely before giving succulents approximately a week to absorb the water before you water them again to prevent overwatering.

January 2017 addition: