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:
Will 800 lumens be sufficient for succulents?
The best solution for indoor succulents is grow lights! Especially in the winter, many interior places do not receive enough sunlight to produce healthy, vibrant succulents, therefore grow lights can be used to supplement natural light. We advise utilizing T5 fluorescent tubes or full spectrum white LED bulbs. Try to get a lamp that puts out between 300 and 800 lumens per square foot. Set up your grow lights 6″ to 12″ above the succulents, and leave them on for roughly 12 hours each day.
Will succulents benefit from LED lighting?
Your succulents will benefit greatly from LED grow lights. The light wavelengths that your succulents require to grow and thrive are precisely what they produce. Compared to fluorescent grow lights, they are more energy-efficient and operate more cheaply. They also last a lot longer without losing any light output. Choose LED grow lights if your comfort while viewing is not a priority.
The majority of LED grow lights only emit blue and red light. Strong, wholesome leaves, roots, and stems are produced as a result of the blue light’s promotion of the chlorophyll-development process. Your succulents will remain compact as long as there is blue light present. Red light encourages fruit and flower blooming. It won’t make your succulents bloom out of season, so don’t worry. However, it will improve their capacity to produce and sustain blooms in the spring and summer. The majority of LED grow lights feature more red than blue lights because they are frequently used for growing vegetables or orchids. You can change the output of this LED grow light to produce mostly blue light if you feel the need to do so.
The Lifetimetunnel 45W LED Grow Light Panel, which is an upgraded and better model than the ones I purchased five years ago, is the one pictured above. My succulents and I are satisfied with the outcomes after purchasing three fixtures. For three years, my husband operated these lights nonstop; after that, he did so for around six months each year. There is no light loss, and they continue to function perfectly. Each fixture includes a hanger kit, however depending on your setup, you might wish to extend it. A 15-month warranty is provided. It is currently available at a buy 2 get 1 free price!
Introduction
Despite the reams of nonsense written about it online, lighting plants is actually extremely easy. work out
Find a lamp that effectively offers the amount of light that you need for the area and number of plants that you have.
However, cultivating cacti under artificial lighting is difficult and might not be very profitable. Maybe you can say it now.
is simple, but you must invest several hundred pounds in a kit and anticipate police inquiries when you do it.
The majority of cacti require light that is nearly as strong as full sunlight. Many of them would desire even more ideally
light that is more powerful than the sunlight in Britain. Only HID lighting can produce this level of light intensity.
Per square foot of plants, 100W of lighting is typically required. In actuality, a half can produce respectable outcomes.
or one-fourth of that, as the light may be kept at that level throughout the day, every day. Make certain you
Summertime direct sunshine is 5 to 10 times more powerful than most indoor lighting sources.
lighting for plants Even the summer sun is brighter than the majority of artificial lighting systems. So if you have access to natural light, use it.
The biggest issue is that plants in windows can lean or stretch since the back side of the plants never receives enough light.
In addition to being expensive, the heat produced by the necessary amount of lighting for cacti can be a major issue.
should run a reasonably powerful fan system in order to prevent overheating in both the house as a whole and the plants.
You could do better to look for varieties of cacti or other succulents that can thrive outside or in your western window.
without a lot of sun. The epiphytic cactus in general, the “jungle” cacti, and a few Caribbean or South American species
control your lighting levels. Many of the organisms you see, including small globulars, Gymnocalyciums, Fraileas, certain Mammillarias,
can be found in bubble packs at B&Q, are resilient to unfavorable circumstances. Or perhaps you could grow to appreciate Haworthias.
Light Requirements
A full-time desert cactus requires more than 2,000 lumens per square foot of light to grow. As a
As a general rule, start with 20W per square foot; 30W is preferable. little tubes, like the two-foot
Compact fluorescents and 20W bulbs are less effective; you would need at least 30W per square foot, but I don’t advise it.
them. Although it is lower in the early morning and late afternoon, direct noon light has 10,000 lumens per square foot or more.
when it’s cloudy, later in the day and lower. By keeping the lights on for 14 or 16 hours at full power, you can make up some of the loss.
hours a day, but the plants won’t grow as compactly, won’t have the same spination, and may be challenging to manage.
blossom, but would undoubtedly be content at a period like the winter. Cacti in full sun could be grown continuously if you want to.
The spiral compact fluorescents can be utilized in very small spaces, however you’ll require roughly 50% more electricity because they
are not particularly productive. Straight fluorescent tubes work well in medium- to large-sized spaces, but avoid using very short ones unless you have to.
have no other option. Unless you have a large room full, metal halides are usually not necessary for cactus seedlings, however
they work well for sizable regions with mature cactus. Again, unless you have a fully occupied room, I wouldn’t advise HPS.
because unless you add additional light, cactus will etiolate beneath them. Avoid using halogen or incandescent lights too frequently.
heat and insufficient light LEDs are now an option, but it can be challenging for a novice to determine what is required and whether it is adequate.
A bit of a red herring, the heat issue is that a 400W lamp emits more heat than a 150W lamp. Possibly a 15-watt lamp
Less heat, but you can determine why you wouldn’t use it for yourself. Choose a lamp that provides adequate illumination; anything larger is
Work out whether you need fans to cool it or if you’re just wasting money (and that’s before you have to turn the A/C up!).
These values presuppose that you use a good reflector and side baffles or other lighting techniques to direct the majority of the light onto the plants.
light used inside a white growth enclosure. The majority of conventional reflectors would likely lose half the light.
If you are raising jungle cacti seedlings and have some natural light, you may be able to utilize lower light settings.
or simply for the winter. For overwintering some winters, I use 5x36W T8 fluorescent lights at almost 2,000 lumens per square foot.
developing warm-loving plants like succulents and 1-2 year seedlings. 10–12 hours a day are spent operating these lights.
because some plants only flower in the winter or right after the winter and are sensitive to day length. I employ 600–1,200 lumens every
Light Intensity
The amount of light falling on a specific region determines its intensity. To match the intensity of, you have to put in a lot of effort.
artificial lighting in direct sunshine. The UV content of the light is typically lower, even if you can handle it. But you may provide the entire thing.
continual intensity of light that the sun cannot provide. It’s still challenging to provide an adult cactus enough light.
Let’s simply stick to plant lights because the word “penetration” is so frequently misused. Few people are aware of what penetration actually
simply been conditioned to believe that strong lights have good penetration and can reach the plant’s base.
In reality, penetration is a result of light collimation, which we have already discussed. light sources that are
spreading out rapidly have weak penetration, which means that the plant’s bottom receives significantly less light than its top.
This is why putting a plant next to a light that is poorly built won’t help stop the light from spreading.
In order to minimize the disparity in light intensity, powerful light sources are typically situated far from the plants.
between the plant’s top and bottom. Hence the “myth” that strong light sources penetrate farther than weak ones.
ones. The best illustration is the sun, an extremely strong light source that is so far away that there is basically no difference.
between the top and bottom of a plant’s light coverage. near to the plants, a strong light source has
Very poor light penetration; the top leaves will be burnt by excessive light while the bottom leaves will die from insufficient light.
Diffusion of Light
The efficiency of fluorescent lights, like all other lights, doesn’t decrease with distance; instead, the light just spreads out. Prevent
Plants can be placed wherever you desire, and you can keep the light from spreading out. Of course, there is no method for limiting or concentrating the
installing the lights at one end of your basement and placing the plants in the corner at the other end will provide 100% effective light.
likely produce subpar outcomes! Keep in mind that shop light “reflectors” are made to spread the light over the entire space, not to concentrate it on one spot.
Therefore, they are useless for what we require. seed or plant tray. Remove any diffuser from your lamp, too.
After all, why would you put a light fixture intended to illuminate a 400 square foot room evenly on two square feet of plants? Use
inverse square laws, light loss efficiency, and a lighting system intended to concentrate light on a limited area
exit through the window. Why should you settle when searchlights and lasers don’t diminish in intensity with distance?
for a plant light that diminishes in intensity over time? Or one where the plants are completely missed by three-quarters of the light?
The worst conceivable solution is to practically directly touch plants with fluorescent tubes, which is a very simple method. You
only good if you require a very well lighted basement for 16 plants, as half or more of the light will still miss the plants.
days a week. Additionally, there is a difference in light intensity between, say, two inches at the bottom of the plant and one quarter inch from the tube.
will be enormous, leading to subpar growth. Once the plants reach taller than a few inches, the entire arrangement is absolutely useless.
Nothing about this is magical. A certain quantity of light is produced by plant lights, and as long as it doesn’t leave or get
No matter how far away the plants are, if it is absorbed, it must eventually reach them. In reality, each bounce off a surface results in a loss of around 20% of the
There’s no need to jam anything up against the tubes, but you also don’t want to move too far. Whatever you decide to do
Instead of simply converting your basement into a man-made beach, it’s crucial to direct as much light as possible onto the plants. Invest in a decent reflector,
The ones that come with fluorescent lights are made to disperse the light throughout the entire room rather than focusing it on a few square
feet. Put as many white surfaces around the lights and plants as you can: white wall behind it, white shelf above and below, even hung
Nobody can really tell you how near to place the lights because it all depends on how your reflector is made. when plants begin
raise the lights to blaze. Try to position the lights so that their distance from the plants is at least equal to their height. Try to with an open shelf
Place the plants in a uniform row with respect to the lighting. It won’t matter if you cover at least three sides with white sheeting.
It doesn’t matter how far the lights are. The amount of light that reaches the plants as opposed to leaving through the windows is what matters.
the remainder of your basement up. The easiest (and worst!) method to direct a lot of light onto a plant is to place the lights close to it.
a tiny plant area. To avoid overheating and to allow the light to spread, very high intensity lights must be positioned far from the plants.
Nearly all of the lights can be directed without loss onto the plants by using a “enclosure.” If you’re using a container,
Instead of going to the hassle of using mylar, simply paint it white. They might use latex paint to make your roof reflect sunlight.
The best interior flat emulsion paint, but regular flat paint is almost as excellent. Moisture is an issue in cages used to cultivate adult cacti.
humidity increases as moisture is trapped. Using enough lights for a mature cactus will also cause heat accumulation, so create an
a ventilation system into your enclosure. Seedlings do well in enclosed lightboxes because they prefer steady, moderate light, high humidity, and consistent warmth.