• Skip to main content
  • Skip to secondary menu
  • Skip to primary sidebar
  • Skip to footer

Grow Light Info

Helping You Choose the Right Grow Light

  • Grow Lights
    • LED Grow Lights
      • Buying Guides
      • Reviews
        • BestVA DC Series Review
        • HLG Review
        • KingLED Review
        • Mars Hydro Review
        • Phlizon COB Series Review
        • Spider Farmer Review
        • Viparspectra Review
      • Tips & Advice
    • HID Grow Lights
      • Buying Guides
        • Best CMH Grow Lights
        • Best HID Grow Lights
        • Best MH And HPS Bulbs
      • Tips & Advice
    • Fluorescent Grow Lights
      • Buying Guides
        • Best T5 Bulbs For Veg
        • Hydrofarm AgroBrite T5 Review
      • Tips & Advice
    • Grow Light Guides
      • Adjustable Grow Light Stands
      • Best Lights For Vegging
      • Best Lights For Flowering
    • Tips & Advice
  • Grow Tents
    • Grow Tent Buying Guides
      • Best Large Grow Tents
      • Best Small Grow Tents
      • Quictent Review
      • Secret Jardin Review
      • Vivosun Review
    • Grow Tent Info
  • Seeds
    • Best Place To Buy Marijuana Seeds
    • Best Autoflower Seed Banks
    • Highest Yielding Autoflowers
    • Seed Banks That Take PayPal
    • Crop King Seeds Review
    • ILGM Seed Bank Review
    • Marijuana Seeds NL Review
    • Seedsman Review
  • Other Equipment
    • Best Digital Scale For Weed
    • Best Fan For Grow Tents
    • Best Humidifier For Grow Tents
    • Best Microscope For Trichomes
    • Best Scissors For Trimming Weed
    • Best Timer For Grow Lights
  • Indoor Growing
    • Cannabis Cultivation
  • Cannabis Info
    • Useful Info
    • Fun
You are here: Home / Grow Lights

Can Plants Get Too Much LED Light? (And How To Spot The Problem)

Last updated February 20, 2024 By Steven Leave a Comment

Can Plants Get Too Much LED LightToo much of a good thing can be bad.

This is just as true for plants and light as it is for many other aspects of life.

But can plants get too much LED light, too?

Or is too much light only a problem with other types of grow lights?

After all, LED light is less intense.

And good LED grow lights have a spectrum tailored specifically for plants.

Keep reading to learn whether you can give your plants too much LED light, how to recognize that they are receiving too much, and what to do about it.

Contents

  • 1 Can Plants Get Too Much LED Light?
    • 1.1 Signs Your Plants Are Gettingย Too Much LED Light
      • 1.1.1 Leaf Burn
      • 1.1.2 Stunted Growth
      • 1.1.3 Wilting
      • 1.1.4 Leaf Yellowing
      • 1.1.5 Leaf Curling
      • 1.1.6 Browning Of Leaf Tips
    • 1.2 Correcting Too Much LED Light
      • 1.2.1 Adjust The Distance Between Lights And Plants
      • 1.2.2 Adjust The Timer
      • 1.2.3 Dim The Lights
  • 2 Too Much LED Light For Plants: Final Thoughts

 

Can Plants Get Too Much LED Light?

Yes, plants can get too much LED light. Too much light from any source can be detrimental to the health of your plants. This means you need to monitor how much they receive when using your LED grow lights, in order to avoid any issues.

When using LED grow lights, you need to keep an eye on both the intensity and the amount of light you bathe your plants in. You need to know how to recognize the symptoms of light stress, and what to do to correct the issue.

 

Signs Your Plants Are Gettingย Too Much LED Light

cannabis plant that received too much light

Here are a few of the more common signs and symptoms that can indicate that your plants are receiving too much light. Be aware, though, that some of these signs can also be caused by other issues. You may need to investigate further to ascertain their root cause.

 

Leaf Burn

This is the most common sign of too much LED light. It appears as pale or brown spots on the leaves, or as a yellowing of the leaves with the veins remaining green. Leaf burn can also cause the leaves to curl or become brittle and drop off.

 

Stunted Growth

Giving your plants too much light may also lead to stunted growth. This means that they will not grow as tall or as bushy as they should, and their leaves may be noticeably smaller and less prolific than usual.

 

Wilting

Plants that are getting too much light may also wilt. This is because the light can cause the plant to use water more quickly than it can take it up and leaves become less dense and listless, drooping downwards rather than sticking outwards.

 

Leaf Yellowing

Leaf yellowing is another common sign of too much light. It can be caused by a number of factors, including stress, nutrient deficiency, and disease, including root rot in weed plants.

However, if the yellowing is accompanied by other signs of too much LED light, such as leaf burn or stunted growth, then it is likely that the light is the cause.

 

Leaf Curling

marijuana leaves curling

Leaf curling can also be a sign of too much LED light. It is thought to be caused by the plant’s attempt to protect itself from the intense light.

But be aware that leaves can curl for other reasons too, such as root rot or nutrient issues. That said, if the light you give your plants is too intense, the leaves will usually curl upwards rather than downwards.

 

Browning Of Leaf Tips

The browning of leaf tips can also be a sign of too much light. It is thought to be caused by the light damaging the plant’s cells, but nutrient burn – overdoing the nutrients – can also present with the tip of the leaves turning brown.

 

Correcting Too Much LED Light

If you notice any of the signs above, here are the main courses of action to follow to try to remedy the situation and save your plants.

 

Adjust The Distance Between Lights And Plants

Most LED grow light manufacturers provide recommendations for the ideal hanging distance for their lights. When setting up your grow lights, be sure to follow this advice. If you still notice any signs of light stress, you should adjust the lights so they are a little farther away from your plants’ canopy.

 

Adjust The Timer

Changing the light schedule for your plants, so they receive light for a shorter amount of time each day can also help. If you have your grow light timer set to give your plants 16 hours of light each day, maybe dial it back an hour or two and monitor your plants for signs of improvement.

 

Dim The Lights

led grow light with dimmer

Rather than, or indeed in addition to, reducing the amount of time your LED grow lights are on each day, you can also dial back the intensity of the light with the dimmer switch.

This way you can maybe stick to the same light schedule, but reduce the intensity of light emitted, which should help you see some improvements. Of course, this only works if you have dimmable LED grow lights.

 

Too Much LED Light For Plants: Final Thoughts

Plants can certainly get too much LED light, just like they can get too much light from any other source. Too much light is too much light, no matter where it comes from.

If your plants get too much light, their growth and bud production will suffer. They may even die. Luckily, plants show symptoms of excessive light, so you can recognize the issue early and take steps to fix it.

Reader Interactions

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Primary Sidebar

Recent Articles

thc cbn cbd and marijuana potency

What Are THC, CBN & CBD And How Do They Relate To Marijuana Potency?

Things That Cause Stress In Cannabis Plants

7 Things That Cause Stress In Cannabis Plants (And Why Stress Is Bad)

Improve Bud Quality In Cannabis Plants

6 Ways To Improve Bud Quality In Cannabis Plants

Top 10 Strains For Maximum Yield

Top 10 Cannabis Strains To Grow For Maximum Yield

How To Make Your Own Cannabis-Infused Edibles

How To Make Your Own Cannabis-Infused Edibles At Home (Easy Step-By-Step Guide)

Eco-Friendly Cannabis Cultivation

Eco-Friendly Cannabis Cultivation: 8 Tips For Growing Green And Sustainable

1 Gram Of Weed Per Watt Of Light

1 Gram Of Weed Per Watt Of Light (Is It Realistic & How To Achieve It)

How To Make Cannabis Tinctures At Home

How To Make Cannabis Tinctures At Home (Easy Step-By-Step Guide)

Save Electricity When Growing Weed

7 Tips To Save Electricity When Growing Weed

marijuana flowers

How To Make Bubble Hash At Home (Step-By-Step Beginner’s Guide)

Footer

Important Pages

  • Home
  • About
  • Contact Us
  • Privacy Policy
  • Affiliate Disclosure
  • Terms And Conditions

Image Reuse

Images on this site are free to share (unless attributed to a 3rd party), as long as you give credit to Grow Light Info and provide a link back to the page from which the image came.

Disclaimer

Some recommended products may use affiliate links. GrowLightInfo.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. As an Amazon Associate I earn from qualifying purchases.

*Amazon and the Amazon logo are trademarks of Amazon.com, Inc, or its affiliates.

Contact

Grow Light Info is owned and operated by:

McBrain Global LLC
30 N Gould Street, Suite R
Sheridan, WY 82801
USA

Phone: +1 (307) 269-0897
Email: mccabesteven9@gmail.com

Copyright © 2025 ยท McBrain Global LLC ยท All rights reserved.