Grow Lights for Succulents: Everything You Need to Know

Grow lights can be an amazing tool for keeping succulents healthy indoors, especially in darker homes or during the winter months. When used correctly, they help plants stay compact, colorful, and strong. When used incorrectly, they can cause stretching, stress, or confusion.

This guide covers everything you need to know about grow lights for succulents, from choosing the right one to placing it properly and knowing what signs to watch for.

What grow lights actually do

Grow lights supplement or replace natural sunlight by providing the light plants need for photosynthesis. Succulents are high light need plants, meaning they need more light than most houseplants to grow properly.

A good grow light:

• Prevents stretching and legginess

• Encourages compact, symmetrical growth

• Helps bring out natural color and stress tones

• Provides consistency when sunlight is limited

Grow lights do not replace proper watering, airflow, or soil, but they make indoor growing far more reliable.

What to look for in a good grow light

Not all grow lights are created equal. Many lights look bright to our eyes but are not strong enough for succulents.

When choosing a grow light, look for:

• Full-spectrum white light, not purple or pink

• 5000K–6500K color temperature or labeled “sunlike”

• Even light spread, not a harsh spotlight

• Enough output for succulents, not just foliage plants

• Adjustable height or mounting, especially for shelves

Clean white grow lights are easier to live with visually and better for long term plant health.

How close should grow lights be?

Distance matters more than most people realize.

General guidelines:

• Shelf or bar lights: 3–6 inches above the plants

• Stronger panel lights: 10–18 inches above the plants

If a light is too far away, succulents will stretch. If it’s too close, leaves can bleach or scorch. Always adjust slowly and observe how plants respond over one to two weeks.

How long should grow lights be on?

Succulents need a balance of light and darkness.

• 10–12 hours per day

• Use a timer so light is consistent

• Avoid running lights 24/7

Consistency is more important than chasing the perfect number of hours.

Signs your grow light setup is working

Positive signs include:

• Compact growth

• Tight rosettes

• Strong leaf color

• Slight stress coloring (reds, pinks, purples) without damage

These are all indicators that the plant is getting enough light.

Signs something needs adjusting

What to watch for:

• Stretching or leaning = light is too weak or too far away

• Pale or bleached leaves =light may be too close or too strong

• Sudden leaf drop or stress =combined light and watering issue

Adjust height or duration gradually rather than making any drastic changes.

Common grow light mistakes

• Relying on decorative or very low watt lights

• Mounting lights too far above plants

• Running lights only 6–8 hours per day

• Using purple lights for display areas

• Assuming all succulents need the same intensity

Grow lights work best when paired with good drainage, dry soil cycles, and airflow.

Grow lights and watering

Grow lights increase evaporation and growth, which can slightly change watering needs. Always let soil dry completely between waterings, and never water on a schedule just because a grow light is present.

Light does not fix overwatering.

Do succulents still need sunlight?

If a grow light is strong and well placed, succulents do not need additional window light. Some growers use both, but it’s not required.

Grow lights are especially helpful in winter, north facing rooms, or homes without bright windows.

Troubleshooting grow light issues

My succulent is stretching

Likely causes:

• Light is too weak

• Light is too far away

• Light is on for too few hours

What to do:

• Move the light closer

• Add another light bar

• Increase daily light duration gradually

Leaves look pale or bleached

Likely causes:

• Light is too close

• Light is too strong

• Sudden change in intensity

What to do:

• Raise the light slightly

• Reduce hours for a few days

• Reintroduce stronger light slowly

Leaves are dropping or plant looks stressed

Likely causes:

• Combination of strong light and excess moisture

• Poor airflow

• Recently repotted plants adjusting

What to do:

• Let soil dry completely

• Improve airflow

• Give the plant time to acclimate

Plants are healthy but not colorful

This is normal for some varieties.

Options:

• Slightly increase light intensity

• Move lights closer by an inch or two

• Be patient, color develops gradually

Grow lights we recommend (Amazon)

These are reliable options we commonly recommend for succulents grown indoors.

For shelves and racks

• Barrina T5 or T8 LED Grow Light Bars (5000K or 6500K)

Great for shelves, easy to mount, scalable, and very commonly used for succulents.

For tables or open growing areas

• Spider Farmer SF600 or SF1000

Strong, full-spectrum white light. Excellent for multiple succulents in one area.

• Mars Hydro TS600 or TS1000

Comparable quality and output to Spider Farmer and widely trusted.

For wider shelves

• Mars Hydro VG40 or VG80 Bar Lights

Long, even coverage for deeper or wider shelves.

We recommend avoiding purple lights and very low watt clip lights for succulents, as they are often not strong enough long term.

Grow lights are one of the most useful tools for indoor succulent care when used correctly. The right light, placed at the right distance and run consistently, makes growing succulents indoors much easier and far more predictable.

If you’re ever unsure, start with a stronger light placed a bit farther away and adjust slowly. Watching how your plants respond will always tell you more than specs alone.