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Safety first: Herbs can be powerful. If you are pregnant, nursing, take medication or have a health condition, check with your doctor or pharmacist first. Please read our herbal & garden safety notes before you start.
Key takeaways
- Check your light first. Light drops fast away from the glass. Past about 8 feet from a window, most plants struggle without help.
- Most herbs want about 8 hours of direct light, and some manage with 6, says Iowa State Extension. Winter windows often fall short.
- Hang lights 6 to 12 inches above herbs and small plants, on a timer set for 12 to 16 hours a day.
- Pick white, full-spectrum light for rooms you live in. It looks like a normal lamp instead of a purple glow.
- Buy a timer. It is the cheapest part of the setup and the one that keeps plants on a steady rhythm.
In this post11 sections
- Do your indoor plants need a grow light? The window-distance test
- How we picked these grow lights for indoor plants
- Clip-on grow lights for a desk or windowsill
- Aesthetic grow lights: bulbs for the lamps you already own
- Plant shelves with grow lights and under-shelf bars
- Grow light stands and seed starting setups
- Timers: the cheap part that matters most
- How to use grow lights: distance and timer settings
- Grow lights in winter, plus a simple DIY setup
- Which grow light fits your space?
- FAQ
Do your indoor plants need a grow light? The window-distance test
Before you buy anything, measure how far your plants sit from the window. A University of Arizona Cooperative Extension guide to houseplants (AZ1025) uses a simple rule: high light is within about 4 feet of a large south or east window, medium is 4 to 8 feet back, and low is anything beyond 8 feet.
Mississippi State Extension (publication P1012) measures light in foot-candles and calls 1,000 or more high light, 500 to 1,000 medium and 50 to 500 low. Under 50 foot-candles won't sustain plants for long. Each extension service draws these bands a little differently, so use them as a guide, not a law.
| Where the plant sits | Light level | Grow light? |
|---|---|---|
| Within about 4 ft of a large south or east window | High (about 1,000+ foot-candles) | Often not needed for houseplants. Herbs may still want a top-up in winter. |
| 4 to 8 ft back from the window | Medium (about 500 to 1,000) | Yes for herbs. Many low-light houseplants cope. |
| More than 8 ft back, a hallway or a north room | Low (about 50 to 500) | Yes for herbs and most leafy plants. |
| Windowless bathroom or a dark shelf corner | Under 50 | Yes. Plants won't last long here without one. |
How we picked these grow lights for indoor plants
Most grow light roundups lean on big panels and skip the prices. A small apartment needs something different, so we sorted picks by where the light goes: a clip, a lamp, a shelf or a stand. Then we checked each one against five questions.
What matters in a small-space grow light
We have not tested these lights by hand. Brand picks come from retailer listings and published roundups, which we name as we go. Prices are snapshots at the time of writing (October 2026) and change often, so check the listing before you buy.
Clip-on grow lights for a desk or windowsill
A clip-on is the easiest way to start. It clamps to a shelf edge, a desk or the window trim and lights one to four small pots. Gooseneck arms let you move the light closer as winter days get shorter and back again as plants grow taller.
Clip-on grow lights
- Sturdy pick
1. Sansi 40W clip-on grow light
about $50 (Walmart, Oct 2026)
A single round full-spectrum head on a clamp. Sansi lights give a white glow, so this reads as a desk lamp beside a basil pot or a shelf of small plants.
Check price on Amazon for 1. Sansi 40W clip-on grow light -
2. Barrina Orbgrow clip-on grow light
about $39 (sold out when we checked)
A newer clip-on from Barrina, a brand better known for its shelf strips. It was sold out at the time of writing, so watch for a restock.
Check price on Amazon for 2. Barrina Orbgrow clip-on grow light
More clip-on grow lights
- Budget
3. LEOTER clip-on grow light
under $25 (per a review site)
A budget clip-on for one or two pots. Check the listing for a built-in timer and adjustable heads, since features vary by model.
Check price on Amazon for 3. LEOTER clip-on grow light -
4. Lordem clip-on grow light
check current price
Bob Vila's grow light roundup named a Lordem clip light its pick for windowsills. Clamp it to the window trim to stretch short winter days.
Check price on Amazon for 4. Lordem clip-on grow light
Aesthetic grow lights: bulbs for the lamps you already own
If you'd rather not see gear in your living room, put the grow light inside your decor. A full-spectrum LED grow bulb screws into a standard lamp socket, so a floor lamp, a pendant or a table lamp does double duty. Check the lamp's wattage rating and make sure the bulb fits under the shade.
Remember that light weakens quickly with distance. A floor lamp a few feet above a plant gives a gentle boost for a fern or a pothos. Herbs need the bulb much closer, about 6 to 12 inches away.
Grow bulbs and decor-style grow lights
- Most discreet
5. Full-spectrum LED grow bulb (standard E26 base)
check current price
Fits most US lamps. Look for one sold as white full-spectrum light so the room still looks normal at night.
Check price on Amazon for 5. Full-spectrum LED grow bulb (standard E26 base) -
6. Plug-in pendant cord with a grow bulb
check current price
Hangs from a ceiling hook and plugs into the wall, so renters get an overhead light with no wiring. Drop it close over hanging plants.
Check price on Amazon for 6. Plug-in pendant cord with a grow bulb
More grow bulbs and decor-style grow lights
-
7. Soltech Aspect pendant grow light
check current price
A design-forward pendant made to look like a modern light fixture. It is a splurge, so it suits one statement plant more than a crowded shelf.
Check price on Amazon for 7. Soltech Aspect pendant grow light
Plant shelves with grow lights and under-shelf bars
Shelves are where a small plant collection really grows. Thin LED bars stick or clip under each shelf and light the plants below, which turns a bookcase far from the window into a growing spot. In the kitchen, the same bar works under an upper cabinet.
Shelf lights and plant shelves
- Best for shelves
8. Barrina T5 LED grow light strips
check current price
Slim bars that link together, so one plug can run a whole shelf. A popular choice for bookcase and seed shelf setups.
Check price on Amazon for 8. Barrina T5 LED grow light strips
More shelf lights and plant shelves
-
9. Under-cabinet LED grow light bar
check current price
Mounts under an upper cabinet and lights a row of herb pots on the counter. Pick one with a white light so the kitchen still looks like a kitchen.
Check price on Amazon for 9. Under-cabinet LED grow light bar
More shelf lights and plant shelves
-
10. Plant shelf with built-in grow lights
check current price
Shelf and lights in one box, for a dark corner with no window at all. Measure your corner before you order, as these vary a lot in height.
Check price on Amazon for 10. Plant shelf with built-in grow lights
Grow light stands and seed starting setups
Floor plants and seed trays need a different kind of light. A tripod stand lifts a light over a big plant on the floor. A tiered rack holds trays of seedlings a few inches under the lights, which is what seed starting needs.
Stands, racks and all-in-one gardens
-
11. Tripod floor-stand grow light
check current price
A telescoping pole with a light head that angles over a monstera or a fiddle leaf fig. No drilling, no shelf needed.
Check price on Amazon for 11. Tripod floor-stand grow light - Seed starting
12. Gardener's Supply Stack-n-Grow light system
check current price
Bob Vila's roundup picked it for seed starting. Stackable tiers fit a laundry room or closet corner in late winter.
Check price on Amazon for 12. Gardener's Supply Stack-n-Grow light system
More stands, racks and all-in-one gardens
-
13. Small LED panel for a plant collection
check current price
Covers a bigger group of plants at once. Mayfair Farms (August 2026) suggests hanging panels 12 to 24 inches above the plants. Skip it if you only have a few pots.
Check price on Amazon for 13. Small LED panel for a plant collection -
14. AeroGarden Bounty
availability varies
Bob Vila's pick for herbs: light, water and pods in one countertop unit. AeroGarden announced a wind-down in late 2024 and was later reported back with limited stock, so check before you count on it.
Check price on Amazon for 14. AeroGarden Bounty
Want herbs on the counter with no window at all? Our guide to hydroponic herb gardens compares the countertop kits, plus a mason jar version you can make yourself.
Timers: the cheap part that matters most
Plants do best on a steady day and night rhythm, and few of us remember to flip a switch at the same time every morning. A timer fixes that for a few dollars. If your light has no timer built in, add one.
Timers
- Don't skip
15. Plug-in outlet timer or smart plug
check current price
A plug-in timer sets on and off times for any light. A smart plug does the same from your phone. Check that it is rated for the light's wattage.
Check price on Amazon for 15. Plug-in outlet timer or smart plug
How to use grow lights: distance and timer settings
Two numbers make a grow light work: how far it hangs from the leaves and how long it runs. Here is what the extension services and growers we read suggest.
| Setup | Distance from the leaves | Hours a day | Source |
|---|---|---|---|
| Herbs in pots (clip-on, bar, bulb) | 6 to 12 in | 12 to 16 | Iowa State Extension |
| Herbs with no window light at all | 6 to 12 in | At least 8 to 10 | NC State Extension (minimum) |
| Microgreens on a shelf | 6 to 12 in | About 16 | University of Maryland Extension |
| LED panels over a plant collection | 12 to 24 in | 14 to 18 | Mayfair Farms (Aug 2026) |
Iowa State Extension suggests hanging lights 6 to 12 inches above herbs on a 12 to 16 hour timer. NC State Extension sets a lower floor of 8 to 10 hours when grow lights are the only light. The University of Maryland Extension microgreens guide uses 6 to 12 inches and about 16 hours.
Long, floppy stems usually mean the light is too far away or on too few hours. Pale or crispy top leaves can mean it is too close. Move it an inch or two at a time and give the plant a week to respond.
Room temperature matters too. NC State suggests 65 to 70°F during the day for herbs, with nights about 10°F cooler. A sill against icy glass can run colder than that, which is one more reason to bring pots a little way back and add light.
Grow lights in winter, plus a simple DIY setup
Winter is when grow lights earn their keep. Days are short and the sun sits low, so even a good window gives less. Set the timer to add light before sunrise and after sunset, so the plant gets a longer day without staying lit all night.
DIY grow light setup for under a shelf or over a sill
Our indoor herb garden guide covers the best eight herbs for a windowsill. For dim kitchens, see the herbs to grow indoors in low light, ranked by how much light each one really needs. Rosemary is the hardest of all, and our rosemary guide explains why.
Which grow light fits your space?
| Setup | Best for | Looks in a living room | Watch out for |
|---|---|---|---|
| Clip-on | 1 to 4 pots on a desk, sill or shelf edge | Small and fairly tidy | Weak clamps on thick shelves |
| Grow bulb in a lamp | One plant or a cozy corner | Blends in best | Too far away to help herbs much |
| Under-shelf bars | Bookcases, kitchen cabinets, seed shelves | Hidden under the shelf | Cord clutter if you link many bars |
| Plant shelf with lights | A dark corner with no window | Looks like furniture | Takes floor space |
| Floor stand | One big floor plant | Visible, but slim | Tips over if bumped |
| LED panel | A big group of plants | Looks like gear | Overkill for a few pots |
A grow light makes sense if
- Your plants sit more than about 8 feet from a window
- You want herbs through winter
- Your only window faces north or looks onto a wall
- You start seeds indoors in late winter
Skip it if
- Your plants already sit within about 4 feet of a large south or east window and look healthy
- You only grow low-light plants like pothos and snake plant and they are thriving
- You can't run a cord safely to the spot
- You won't use a timer and tend to forget switches
For more ways to style a plant corner around a light, see our cozy winter plant corner ideas and the indoor plants decor ideas for small spaces.
We earn from qualifying purchases, which never changes what we recommend. Read our disclosure and editorial guidelines.
Frequently asked questions
How far should a grow light be from indoor plants?
For herbs and small plants, Iowa State Extension suggests 6 to 12 inches above the leaves. Bigger LED panels often hang farther up; Mayfair Farms suggests 12 to 24 inches for panels. Measure to the top leaves and adjust as the plants grow.
How many hours a day should grow lights be on?
Iowa State Extension suggests 12 to 16 hours a day for herbs, set on a timer. NC State Extension says plants need at least 8 to 10 hours when grow lights are the only light. Give plants a dark stretch each night.
Do I need a grow light for my houseplants in winter?
It depends on distance from the window. As a guide, plants more than about 8 feet back from a window are in low light, and herbs and most leafy plants there do better with a grow light. Plants close to a large south or east window often manage without one.
What is the best grow light for a small apartment?
For a few pots, a clip-on grow light is the simplest. For a bookcase or kitchen cabinet, under-shelf LED bars hide best. If you want it to blend in, put a full-spectrum grow bulb in a lamp you already own. Add a plug-in timer to any of them.
Can I put a grow light bulb in a regular lamp?
Yes, if the bulb has a standard base that fits the socket and stays within the lamp's wattage rating. Keep in mind that a lamp several feet away gives only a gentle boost. Herbs need the bulb about 6 to 12 inches from the leaves.
Do I need a timer for grow lights?
It isn't required, but it helps a lot. A plug-in timer or smart plug keeps the light on the same schedule every day, which is hard to manage by hand. Check that it is rated for your light's wattage.
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