Spider Mites on Houseplants: How to Wipe Them Out Organically
Updated October 20, 2026 · By Lauren Cain
Spider mites can be cleared organically in about three weeks. Isolate the plant, rinse it hard in the sink or shower (undersides of the leaves too), then spray insecticidal soap or neem oil on both sides of every leaf. Repeat every 5 to 7 days for at least three rounds, because sprays don't kill eggs. Raise the humidity around the plant, since mites thrive in dry, heated indoor air.
The first time I found spider mites, I didn't actually find the mites. I found the webbing: a faint, silvery haze strung between the leaves of a plant I walked past every single day and somehow hadn't really looked at in a while.
My stomach dropped a little. Maybe yours did too, which is probably why you're here.
So the comforting part first. This is fixable. Spider mites are sneaky and they breed fast, and that's what makes them feel like an emergency, but as houseplant pests go they're one of the easier ones to beat. You can do it with stuff you'd be fine spraying in a room where kids and pets hang out.
No harsh chemicals. Just a spray bottle, a shower, and about three weeks of not giving up.
And if it feels like they showed up out of nowhere this month, you're not imagining it. When the furnace kicks on, it dries the air in our houses right out, and warm, dry air is basically a spa weekend for spider mites. You didn't do anything wrong. (If you're in the middle of that seasonal switch anyway, our fall houseplant care guide covers the rest of it.)
Reading this in January or February? Same plan. Heating season runs until spring, so keep the humidity up until the furnace shuts off for the year.
What's in this guide
What Are Spider Mites?
A quick bit of biology, because it actually changes how you fight them.
Spider mites aren't insects. They're arachnids, with eight legs, related to spiders and ticks. The one that shows up on houseplants is almost always the twospotted spider mite (Tetranychus urticae), and it's about 1/50 of an inch long. Picture a fleck of ground pepper. Now picture it walking.
They camp out on the undersides of leaves, poke into the plant cells, and drink what's inside. Every pale little dot you're seeing is a spot where one of them ate lunch.
And they multiply. Eggs hatch in about three days. One female can lay around 100 eggs, and University of Florida entomologists put it at several hundred over her lifetime. In a warm room, an egg can become an egg-laying adult in as little as five days, which is about the speed of a bad rumor.
None of that means your plant is a goner. It just means the calendar is part of the fight. Start sooner, finish sooner.
How Do You Know a Houseplant Has Spider Mites?
You'll almost always see the damage before you see a single mite. Three things to look for:
- Stippling. Fine, pale speckles across the top of the leaf, like someone flicked a paintbrush full of tiny yellow-white dots at it.
- Webbing in the leaf joints and underneath. This is usually the "oh no" moment. By the time you can see webbing, they've moved in and unpacked.
- The plant just looks tired. Dull, a little dusty, gray-green or bronze, sometimes with curling or dropping leaves. It's the plant version of not sleeping well.
To be sure, do the paper test. Hold a sheet of white paper under a leaf and give the leaf a good flick. If specks land on the paper and start wandering around, those are mites. Dust doesn't walk.
You may stare at that paper for a while, hoping you're wrong. Most of us do.
Not sure it's mites at all? Thrips and aphids can leave damage that looks similar. Our guide to identifying common pests will help you sort it out.
Flip a couple of leaves every time you water. The undersides are where mites move in first.
How to Get Rid of Spider Mites Organically, Step by Step
This is the whole routine. Nothing fancy. It mostly comes down to being thorough, and being stubborn.
1. Isolate the plant
As soon as you know, move that plant to its own spot. Mites crawl from leaf to leaf, and a pretty cluster of houseplants on one shelf is basically a highway system for them. A bathroom, a spare room, a corner of the kitchen. Anywhere away from the others until it's fully clear.
2. Rinse it hard
Take it to the shower or the sink (or the hose, if it's still mild out) and give it a real rinse. Not a polite sprinkle. Turn the leaves over and hit the undersides, because that's where they live. Colorado State University notes a forceful jet of water knocks off and kills a lot of mites, and it washes away the webbing too.
It costs nothing, and it takes a big bite out of the population before you've sprayed a thing. On a heavily webbed plant it won't finish the job alone, so don't stop here. Put a towel down first.
A good hard rinse is free, and it makes every spray after it work better.
3. Spray insecticidal soap or neem oil
Both are gentle, and both work the same way: on contact. Soap breaks down the mites' soft bodies. Neem coats them and messes with their eating and molting. Neither one does a thing to a mite it doesn't touch.
So spray until the leaves drip, top and bottom. Then go back and do the undersides again, slower. That's the part everybody rushes.
A few things worth knowing before you start:
- Buy a soap made for plants. I know the dish-soap recipe is all over the internet. University of Minnesota Extension specifically warns it can burn leaves, and a scorched leaf on a plant that's already fighting mites is the last thing you need.
- Test one leaf first and wait a day, especially on ferns or anything with delicate foliage.
- Keep the plant out of direct sun when you spray, and water it the day before so it isn't thirsty going in.
For the whole lineup of gentle sprays and what each one's good for, see our natural pest control options.
4. Raise the humidity
Spider mites love dry air and do a lot worse in humid air. Colorado State University notes that raising humidity indoors can actually bring mite numbers down. So this isn't an old wives' tale. It's one of the real levers you've got.
Group your plants so they share moisture. Set the pot on a tray of wet pebbles, or run a small humidifier nearby if you have one. It matters most from fall into late winter, when the furnace is running and every room feels like the inside of a cracker box. Our post on humidity for houseplants walks through the easy setups.
Bunching plants together raises the humidity around them. The mites hate it. Most houseplants love it.
The one-line version: Isolate, rinse hard (undersides!), spray soap or neem top and bottom, raise humidity, and repeat every 5 to 7 days for three rounds.
Why Do Spider Mites Keep Coming Back?
This is the part that makes people give up. You spray once, the plant looks better for a week, you relax, and then there they are again. It feels like the spray just didn't work.
It worked. The eggs hatched.
Soap and neem kill the mites they hit, but they don't reliably kill eggs, and most miticides don't either. A few days later a new batch hatches and the whole cycle starts over. University of Florida recommends repeat sprays about five days apart in summer and seven days apart in winter.
Three steady rounds will beat one heroic all-out effort every time. Put it on your calendar. Seriously.
| What you see | What it means | What to do |
|---|---|---|
| Fine pale speckling on leaf tops | Early mite feeding | Check undersides; start the routine now |
| Silvery webbing in leaf joints | Established colony | Isolate and rinse today, then spray |
| Cleared up, then back in a week | Eggs hatched | Keep spraying every 5–7 days, 3 rounds |
| New growth still speckled | Mites hanging on | Check coverage; wet every underside |
| Heavy webbing on a big plant | Too much to hand-treat | Consider predatory mites, or let the worst plant go |
How to Keep Spider Mites From Coming Back
Once they're gone, keeping them gone is mostly a few small habits. Nothing to lose sleep over.
- Quarantine newcomers. New plants get two weeks on their own before they join the group. So does anything that spent the summer outside, which is exactly why our guide to bringing outdoor plants indoors for winter starts with a bug check.
- Flip a couple of leaves when you water. Ten seconds. It catches a handful of mites before they turn into a colony.
- Don't let the air go bone-dry once the heat's on.
- Dust your leaves now and then. Clean leaves are easier to check, and dust gets in the way of the tiny predators that eat mites.
- Keep plants watered. Extension entomologists at both Minnesota and Colorado State point out that mites take hold on stressed, dry plants first.
For the rest of the indoor pest cast, read organic pest control that actually works indoors. If you've also got little black flies hovering over the soil, that's a different critter with a different fix: fungus gnats on indoor plants. And our winter indoor plant care guide covers the light and watering changes that keep plants sturdy through the dark months.
How to Help the Plant Recover After Spider Mites
Once the mites are gone, your plant has some catching up to do. It just spent weeks getting its sap drained a few cells at a time. What it needs now is new, healthy growth, and a well-fed plant gets there a lot faster than one running on empty.
This is where I reach for Plant Juice. But I want to be really clear about what it does and doesn't do, because I'd rather you trust me than buy a bottle for the wrong reason.
Plant Juice is a fertilizer, not a pesticide. It won't kill a single spider mite. Nothing in that bottle is meant to.
What it does is feed the soil. Independent lab testing by BiomeMakers found 291 verified microbial species in Plant Juice. One of the most abundant is Pseudomonas putida, at about 1.22 million cells per milliliter, and it belongs to a group of root-colonizing Pseudomonas bacteria known for supporting plant growth. About 84% of the species we found are associated with producing auxin, the hormone plants use to build new roots. (For the longer version, see how beneficial microbes help plants grow.)
So think of it as the recovery meal after the fight. Not the fight.
Timing matters here. Finish your spray rounds first and wait until you see clean new leaves coming in. Then water, and feed with a diluted dose. A plant that's still stressed and dry doesn't want a big meal any more than you would after a stomach bug. Our post on how much fertilizer is too much explains why gentle wins, and the dilution calculator does the math for your watering can.
The quiet work happens underground. Feed the soil, and the leaves take care of the rest.
And if the plant still looks rough after the mites are long gone? It happens. Our guide to saving a dying houseplant covers pruning, repotting, and when it's smarter to start fresh from a cutting.
Real Gardeners, Real Comebacks
I'd rather you hear about comebacks from the people who actually watched them happen. These are in their own words, typos and all, because that's how real people write.
Linda W.
The plant that was in my granddaughters room, got some kind of a disease or something was going on with it, lost most of its leaves, and my granddaughter was ready to throw it away, and I was bound and determined to save it. So you can see from the video That after I started using El dirt the plant fertilizer that it has lots of new growth and one steam got so tall almost to the ceiling and I wouldn’t want it that tall so I cut off one of the main stands and it already has new growth
I’ve also used the bloom dirt and my plants thrive
Tracy B.
I bought this because I had rescued some plants and trees from my workplace that needed some love, some extra attention and these poor plants seemed stressed. I brought them home and I began treating them with this amazing product! Within days they perked up. They began new growth previously unseen. What appeared to be plants on their last legs were nearly twice the size within a month, healthy, vibrant and full. The growth and blooms that came upon bare stalks of a barely breathing plant became full and lush. I have a neighbor who had a tropical that was struggling and I treated it and within the week it was blooming more than it ever had before. It is an amazing product and you will notice within the week of the first treatment. Unbelievable! Beyond satisfied with this product.
Gwendolyn M.
I was sure my cane plant was on it's way out but elm dirt saved its life. This stuff is amazing...it brought back life into all of my house plants and my plants outside...my plants thank you and so do I. Thanks Elm Dirt.
Cindy M.
My plants were getting the winter blues, after just 2 feedings of plant juice they perked right up!
Plant Juice is rated 4.65 out of 5 across 1,793 customer reviews.
Frequently Asked Questions
How do I know if my houseplant has spider mites?
Look for fine, pale speckling (stippling) on the tops of leaves and thin webbing in leaf joints and on the undersides. The mites are about 1/50 of an inch long, so you usually see the damage first. Hold white paper under a leaf and tap the leaf. If tiny specks fall and start to crawl, those are spider mites.
What is the fastest way to get rid of spider mites organically?
Isolate the plant, then rinse it hard in the sink or shower, including the undersides of the leaves. Spray a labeled insecticidal soap or neem oil until both sides of every leaf are wet. Repeat every 5 to 7 days for at least three rounds, and raise the humidity around the plant while you treat.
How long does it take to get rid of spider mites?
Plan on about three weeks. Sprays only kill the mites they touch, not the eggs, and eggs hatch in about three days. Three treatments spaced 5 to 7 days apart catch each new hatch before it can lay more eggs. Keep checking leaf undersides for two more weeks after the last spray.
Does neem oil or insecticidal soap kill spider mites?
Yes, but only on direct contact. Both work on the mites they coat and leave no lasting residue, so you have to wet the undersides of the leaves and repeat the spray. Use a product made for plants. Homemade dish-soap mixes can burn leaves.
Why do spider mites keep coming back?
Usually because the eggs survived. One spray kills the adults but not the eggs, which hatch days later and restart the cycle. Repeat treatments 5 to 7 days apart fix this. Warm, dry indoor air during heating season also speeds up their breeding, so raising humidity helps.
Are spider mites harmful to people or pets?
No. Spider mites feed only on plants. They do not bite people or pets and do not infest your home. That makes gentle, contact-only controls like insecticidal soap and neem a sensible choice indoors around kids and animals.
You've Got This
Spider mites look like a crisis and turn out to be a chore. An irritating one. But you can win it.
Catch them early and rinse hard. Spray gently, and keep spraying until the eggs run out. Keep the air a little humid. Then feed your plant back to strength and let it do what plants are surprisingly good at, which is coming back.
If you want one small garden win in your inbox each week, join our free weekly note. And when your plant pulls through, tell us about it. Those comeback stories are my favorite part of this job. Together we grow.
Sources
University of Minnesota Extension: Twospotted spider mites in home gardens
University of Florida IFAS (EENY150/IN307): Twospotted Spider Mite, Tetranychus urticae
Colorado State University, Agricultural Biology: Spider mites
Park, Y.-L. & Lee, J.-H. (2002). Leaf cell and tissue damage of cucumber caused by twospotted spider mite. Journal of Economic Entomology 95(5): 952–957.
Plant Protection Science (2004). Influence of temperature and host plants on the development and fecundity of the spider mite Tetranychus urticae.
Lauren Cain
Founder & Chemical Engineer · Elm Dirt, Kansas City
Lauren started Elm Dirt after her 6-month-old daughter grabbed fistfuls of backyard dirt and ate them. As a chemical engineer and a mom, she couldn't just shrug it off. She dug into the science of what was really in garden soil and built a fertilizer line around beneficial microbes instead of synthetic chemicals. Today Elm Dirt is used by home gardeners, rose show champions, and organic growers nationwide.