How Improve Vegetable Fruit Flavor Taste And Smell With LED Grow Light?

by | Sep 27, 2023

As gardening fanatics and LED grow light manufacturers, we’re always on our toes, looking for ways to take veggies and fruits to the next level when it comes to taste, flavor, and smell. Who doesn’t want juicy tomatoes that burst with sweetness or crisp greens with a punch of flavor? It turns out that LED grow lights affect plant smell, taste, and flavor of homegrown produce.

We first stumbled upon this when researching how cannabis growers use LEDs. The findings were that specific wavelengths and intensities can affect cannabis flavors and aromas. This got my curiosity going. If LEDs can alter weed’s unique smells and tastes, can they also improve the qualities of my peppers, berries, and greens? We had to explore this further.

Join us in our findings on how vegetable growing light affects plant taste, flavor, and smell with plant lamps. But first, what are the functions of plant lamps?

The Function of Plant Lamps

First, let’s quickly cover how led grow light affects vegetable plant taste. LED grow lights act as artificial sunlight when natural light is lacking indoors. The light is like food for plants. Vegetable grow light emits specific light wavelengths ideal for plant photosynthesis. These wavelengths trigger chemical reactions that drive germination, bud growth, and development. 

This is how vegetable grow lights help increase your indoor yields. 

The best grow lights for indoor vegetables have adjustable LED systems so that you can tailor wavelengths for your plant’s flavor. For instance, the blue spectrum tends to promote vegetative leaf growth. Red light drives flowering and fruiting. Green wavelengths penetrate deeper into the plant canopy. Each color contributes to the plant’s overall growth and health, including its flavor, taste, and smell.

You can control these plant processes as an indoor gardener by tuning LED grow lights to specific wavelengths.

How LED Grow Light Affects Plant Taste, Flavor, and Smell

Optimizing light for higher yields versus better flavors, taste, and smell isn’t necessarily the same. You’ll find that there are LED light wavelengths for growth and specific for flavor, taste, and smell. How does LED grow light affect plant flavor, taste, and smell?

Light Spectrum

Fruit grow light mimics natural sunlight with broad-spectrum light. The light spectrum has different wavelengths that profoundly impact your veggies and fruits. For example, the LEDs supply key blue and red spectrums for leafy growth flowering and fruiting. These color combinations are said to increase fruit sweetness by improving sugar levels. Research confirms all that to be true. 

Recent research has investigated LED lighting strategies focusing on improving the taste, smell, and flavors rather than just bulking up plants. Studies on strawberries, tomatoes, and greens revealed LED treatments that enhanced concentrations of sugars, antioxidants, and other compounds tied to flavor. The lights seemingly stimulated the plants’ production of these tasty elements. Therefore, a controlled light spectrum encourages the production of volatile compounds responsible for flavor, taste, and smell. 

So, how can indoor grow light affect plant smell as well as your veggies and fruits’ flavor, taste?

Tailoring LED Grow Lights Spectrum to Enhance Flavor, Taste, and Smell

Through plenty of LED grow light experiments, we’ve dialed in some optimal wavelengths that noticeably boost taste, aromas, and scent in homegrown fruits and veggies. First, quick science recap – plants require specific light wavelengths for photosynthesis and growth. LEDs allow manipulating recipes to target particular plant processes. Could LED spectra also enhance flavor compounds like sugars and antioxidants? The research said yes!

We tried various LED wavelengths on herbs, leaves, tomatoes, and berries to see their impact on taste. Let me tell you, when you get the formulas just right, the difference in flavor is incredible. Based on the research and our growth light experiments, here are some of the most promising LED wavelengths to maximize your indoor garden’s flavor, taste, and smell. They are;

Blues (450-500 nm)

The blue spectrum is perfect for herbs and leafy greens like spinach and lettuce. These blue wavelengths intensify the concentration of aromatic plant compounds, resulting in a crisp, lively taste and scent. To get the best out of the blue wavelengths (aroma, flavor, and nutritional value), bring it in during the last few weeks leading up to harvest. Adjust it to moderate levels, around 20-30%, for the best aroma.

Note: Too little blue light may not intensify taste while exceeding 50% blue causes bitterness.

Deep Reds (660-680 nm)

If you’re a tomato or fruit grower, here comes your perfect spectrum wavelength. Your tomatoes and fruits need that sweetness that makes taste buds dance with delight. Deep red wavelengths boost sugar accumulation, which you can taste on each ripe, succulent bite. It also intensifies the tropical taste of strawberries and raspberries. To get the best results, adjust your red growth light by 25-40%, especially during flowering and fruiting stages, to maximize sugar and sweetness.

Note: Less than 20% deep red doesn’t sufficiently boost sweetness, and over 50% deep red can lower plant health.

Far Reds (710-740 nm)

Far Red LED wavelengths are also perfect for fruits. It boosts sugars, giving juicy fruits such as tomatoes and berries a sweet, delicious flavor. Use a little far red, approximately 10-15%. The best time to apply Far Red is during the ripening stage when your fruits accumulate sugar.

Note: Less than 5% of Far Red will not impact your plants, while over 20% can decrease your plant’s sugar levels.

UV-A (365-385nm)

How can you promote antioxidants in your veggies and fruits? By using UV-A LED wavelength. The UV-A wavelength increases health-promoting antioxidant concentrations in fruits such as tomatoes. Along with making your fruits more nutritious, extra antioxidants amplify your tomato taste with tremendous complexity. Use 5-10% of UV-A LED wavelength for antioxidant benefits. Target fruits and veggies at the onset of ripening when antioxidants increase.

Note: More than 15% of UV-A risks plant damage without added value

Finding the Right Balance is Key

While specific wavelengths boost your fruit flavors, balance is imperative, too. Too much blue can make vegetables such as lettuce bitter. Excess red can lower fruit sugar levels. It takes fine-tuning to the sweet spot for optimal flavor. When you get the mixtures right, the luscious tastes will speak for themselves.

Don’t be afraid to experiment to see what works best for your particular crops and taste preferences. You can recreate sunlight’s balance or tweak wavelengths until you dial in the optimal blend.

These LED wavelengths increase your vegetable fruit flavor, taste, and smell. There are others that boost your plant growth, and you should make sure to distinguish the two. Growth LED wavelengths are;

  • Infrared (780-1000 nm)
  • Red Light (620-700 nm)
  • Yellow-Orange (575-620 nm)
  • Green (500-575 nm)

The Best Vegetables to Grow Indoors with LED Grow Lights

Now that you know how to improve vegetable fruit flavor, taste, and smell with indoor grow lights for vegetables, what are the best vegetables to grow indoors under lights? Through plenty of firsthand experience, we’ve got some favorites that thrive with the right LED wavelengths and recipes.

  • Leafy greens – Lettuce, spinach, kale, and other leafy greens are perfect for indoors. Cultivation under LEDs. They grow quickly, don’t require much space, and the blue spectrum maximizes their flavor.
  • Tomatoes – Vine-ripened tomatoes bursting with flavor are possible indoors with LEDs. The key is tuning the far-red and deep-red spectrum when fruits start ripening. This boosts sugars and antioxidants for amazingly sweet indoor tomatoes. Make sure to give them proper support as vines elongate.
  • Herbs – It’s so convenient to have fresh herbs on hand for cooking. Many popular herbs like basil, oregano, thyme, cilantro, and parsley thrive under indoor LED lights. Blue and UV wavelengths intensify aromatic oils and flavors in herbs.
  • Peppers – For friendly indoor competition, try growing an assortment of chili pepper varieties under LEDs. You can yield a bountiful indoor pepper harvest with the correct red/blue balance.
  • Radishes and carrots – Quick-growing root vegetables like radishes and mini carrots are gratifying for beginners. LEDs also let you control flavors: red/blue for milder radishes and far red for sweeter carrots.
  • Microgreens – These tiny powerhouses of nutrition are easy to grow with LED lights and make a tasty addition to salads and dishes.

The possibilities are endless, but in our experience, the above veggies consistently rock it under tailored LED grow lights indoors.

Final Word on Grow Lights and Vegetable Smell, Taste and Flavor

Nothing beats the feeling of harvesting the tastiest fruits, herbs, and greens straight from your indoor garden. Growing vegetables indoors with lights is possible, and a game charger.  If you love good-smelling plants, now you know the best vegetables to grow indoors under lights and the best grow light for vegetables. The best grow light for indoor vegetables should have an adjustable LED system that enhances indoor fruits, veggies, and herbs. They should have customizable spectrums and adjustable brightness settings to tune the light to your plants.

Based on the produce you want to grow, adjust your LED wavelengths accordingly and sample as your plants mature. With the proper tuning, you can make your harvests pop with taste at home under the perfect lighting.