Answers to aerogarden grow light FAQ

Answers To Frequently Asked Questions About Aerogarden Grow Lights


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The aerogarden commonly has about 6 grow lights with an in-built timer that will automatically furnish the plants with the maximum illumination of light for several hours, which is determined by the nature and types of the plants in the unit.

As long as adequate light is provided, it does not matter when you turn off these lights. These and many more answers to Aerogarden grow lights, are what many Aerogardeners search for on a regular basis. For this, post, I have gathered common questions people ask about the grow lights and provided answers aerogardeners would find quite helpful.


What are aerogarden grow lights?

Aerogarden grows lights are simply effective rays of light that simulate the natural rays of the sun which plants require to carry out photosynthesis These light sources can be put on for as long as the plants need to satisfy their daily needs of illumination for their survival. In fact, without adequate light, plants hardly ever grow at all, and where they do, you may not get the harvest you expect.

With Aerogarden grow lights, you have the option of varying the intensity of your lights as well as raising them higher to reach taller plants in the grow deck of the aerogarden. In addition, you can set them on for several hours to benefit your plants. The user manual will specify how much of it you need for most common plants grown in your aerogarden model.

Why aerogarden grow lights are important?

Aerogarden grows lights are so important that without them your plants may not grow at all, and where they manage to, they may not thrive properly or even give you any commensurate produce.

Sunlight or aerogarden grow lights, as we may call these artificial plant light sources, are a necessary ingredient in the process of the plants both supplying themselves with needed food as well as storing any excess for harvesting by the farmer. This simply implies that should the plants be deprived of light, they will surely wither off or fail to be of any importance in terms of their yields.

Water, carbon dioxide, and sunlight in the presence of chlorophyll are all necessary for any plant to both grow and produce. Typically, the Aerogarden models are designed with a 30-60 watt LED grow lighting system that concentrates on daylight white LEDs for faster growth, while the blue LED grow light is for more yield, and the red LED grow lights for the production of more healthy flowers and fruit too.

To cap it all, the Aerogardens grow lights, for example, costs much less going by the quality of products it yields eventually, and so it is also with most other types of grow lights too.

Must one use LED light for aerogarden plants?

Yes, you need to provide the plants with LED lights optimally for them to thrive because LED lights simulate the nature and intensity of natural sunlight.

Furthermore, apart from LED lights being the best for plant growth after sunlight, they also last a lot longer than traditional lights before they can be replaced. This simply means that you spend much less if you use LED lights than any conventional lights.

In addition to all these, LED lights produce much less heat too, which can adversely affect the plants or even yourself too, especially in hot seasons. So, yes, you need to provide your aerogarden plants with LED light for as long as they need, if you want a bumper yield.

How many hours should the grow lights be kept on?

How long you leave the grow lights on depends on first, the nature of the plants, and second, on the type of grow lights your aerogarden unit is equipped with. All in all, you can leave your grow lights on for about 15 hours.

Typically, the moment you plug in your aerogarden unit to a light source for the first time, its grow lights will promptly come on and will continue to come on at about the same time every day unless you reset it. Even if you do not reset it, it is bound to automatically go off after every 15 hours or more, depending on the settings.

This length of light supply is regarded as enough for the healthy growth of the plants, even though some plants require more light than others. However, there is a slight variation between plants’ need for light during the day and at night. In essence, the plants may require the light to be left on for about 15 or 16 hours during the day but for only about 8 hours at night, provided their daily need for light is adequate for their survival.

You can always check your aerogarden’s manual to see what you should keep in mind regarding lights on for some plants.

Can aerogarden plants get burned from too much light?

Yes, your aerogarden plants can get burned from being exposed to too much, too close or too bright light, and heat that is not healthy for them. This is particularly more severe if you use traditional light sources instead of LED lights because they produce much more heat than the LED types.

As a result of this possibility, you are advised to position your lights such that they will not be more or less than about 4 to 6 inches over the plants on the grow deck of the aerogarden.

Since plants require all the light they can be exposed to, whenever you are growing different types of plants at once in a single aerogarden unit, you should expect them to exhibit different growth patterns, shapes, as well as sizes too. For this you have to be ready to adjust the light accordingly or let the fast growing plants be on their own to avid growing too big and blocking out lights for the smaller one.

Are bright lights harmful to aerogarden plants?

Yes, brought lights can be harmful to aerogarden plants. This is especially so since every plant requires a specific amount of light daily for maximum and effective growth and functions. As a result, if you supply or expose them to more intensity of light than they require, they may get ruined in the process.

To guard against this from happening, use only grow lights that are recommended, for the time specified in your user manual and at the correct intensity.

What is the ideal height to leave aerogarden light above the plants?

The plants on the grow deck of an aerogarden should be placed at a height that will both enable the plants to obtain sufficient illumination as well as to remain unaffected from harm in any way by either the intensity of the light or heat that might be emitted by the light bulbs.

Consequently, all aerogarden grow lights must not be placed more or less than about 4 to 6 inches from the leaves of the plants in the aerogarden. Luckily, the grow lights can both be raised or lowered to allow for this provision.

Is it okay to change the lights if they get spoiled?

Usually, you are not supposed to replace the lights unless it is very necessary. However, with certain models of aerogardens, such as Miracle-Gro Aerogarden with CFL hood and aluminium metal light post, you have the option of upgrading to the energy-efficient LED hood.

Ideally, your aerogarden unit is supplied with all the grow lights that will satisfy the plant’s needs for growth and development without the need for any sunny window. As a result, replacing spoilt grow lights is not only possible but is even highly recommended. It will also be a good idea to change the grow lights (spoilt or not) at least once every 6 months, or thereabouts, to enjoy the whole planting circle and beyond. This will maximize your plant’s growing ability and more bountiful yield.

The two expert opinions may seem at par, but that is not the case if you consider certain facts. For instance, as a general rule of the thumb, if your aerogarden has an aluminium light post attached to it, you can always upgrade its grow lights with the aid of an LED hood, but if it happens to come with a plastic light post, it cannot be replaced. Nevertheless, most aerogarden units produced since around 2014 can be upgraded. Although traditional grow lights need to get replaced once every 6 months, it should be known that they can actually last between 3 to 5 years before any need for  a serious replacement.

Can you leave the light turned on at night?

You can leave your grow lights turned on at night for about 8 hours or so. What matters is that all your plants should have enough light for their growth regardless of how long or short you keep the lights on.

Notably, all aerogarden grow lights must be kept on before you can reset their timers. Simply hold the ‘lights’ button for at least 3 to 5 seconds until the light of the control panel blinks before you relax the hold.

Can the aerogarden grow lights be left on overnight?

Yes, you can leave your aerogarden’s grow lights on throughout the night if need be. However, the ideal thing is to provide the plants with light for about 8 hours at night and some 16 hours during the day. All the same, if for whatever reason your plants are kind of pressed for light, then, you can choose to leave the lights on throughout the night.



As should be expected, every gadget, especially those used continuously, is bound to develop faults every so often. However, with proper use and strict adherence to the recommendations of the manufacturers, you can cut on how often this happens.

Consequently, be sure to refer to the enclosed user manual for any strange behaviours in the equipment. If you are not sure of anything even after reading the manual, you can always refer your observations and/or problems to the customer care department of the manufacturers.

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2 thoughts on “Answers To Frequently Asked Questions About Aerogarden Grow Lights”

  1. Pingback: How Can I Reset My Aerogarden Timer? - Aerogarden Info

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