As the weather cools down, our gardens start to retreat, and our beloved plants may begin to struggle outdoors. But that doesn’t mean we have to say goodbye to greenery! Indoor gardening is having a moment, and for a good reason. It’s such a wonderful way to keep the gardening joy alive year-round, especially in the fall when the days are shorter and the air is crisp. Whether you’re an apartment dweller without a yard or simply want to expand your plant collection indoors, fall is the perfect time to bring your favorite outdoor plants inside or add a few new houseplants to your home.
I know how daunting it can be to transition plants indoors — dealing with reduced light, fluctuating temperatures, and, of course, the dreaded pests that can sneak in. But with the right strategies, you can create a thriving indoor garden that brings beauty, fresh air, and a little bit of nature’s magic to your home, even in the heart of winter. Let’s dive into some of the best ways to care for your indoor plants this fall, ensuring they stay healthy, happy, and green all season long!
Adjusting Light Levels
One of the most crucial aspects of indoor plant care in the fall is adjusting to changing light levels. As the days get shorter, the amount of natural light available decreases, and this can be a shock to plants that were used to basking in bright summer sunshine. I find it incredibly helpful to observe where the light falls in my home as the seasons change. South-facing windows usually get the most light, but don’t discount the east-facing ones for those lovely, gentle morning rays. Consider moving light-loving plants like succulents or citrus closer to these windows to make sure they get enough sunshine.
If you’ve ever been frustrated by leggy plants stretching toward the light, you know how important this step is! For those of us with homes that don’t get much natural light, investing in a good quality grow light can make all the difference. Choose full-spectrum LED lights that mimic natural sunlight and set them on a timer to provide your plants with a consistent amount of light each day. I love how these lights help keep my plants lush and vibrant, even during the darkest winter days. And don’t forget to rotate your plants every few weeks so all sides get an equal amount of light!
Managing Humidity
Dry indoor air can be a real challenge for plants in the fall and winter. I know how disheartening it is to see crispy leaf edges or wilting foliage, especially when you’re doing everything else right! Many houseplants, especially those native to tropical regions like ferns, orchids, and calatheas, crave higher humidity levels than our heated homes provide. An easy way to boost humidity is by grouping your plants together — they release moisture through a process called transpiration, creating a microclimate that benefits everyone.
If you’ve got plants that are particularly fussy about humidity, consider placing them on a humidity tray filled with water and pebbles. You can also use a small humidifier nearby to keep the air moist, especially during the colder months when heating systems can dry out the air. Another trick I love is misting — a gentle misting of water can make a big difference for your humidity-loving plants, though it’s not a replacement for a more consistent humidity solution. Just be mindful not to overdo it, as too much moisture can invite mold and mildew, which is the last thing any of us want!
Controlling Pests
Pests are one of the biggest headaches when moving plants indoors, and it’s such a bummer when they take over! Aphids, spider mites, and fungus gnats are all too happy to hitch a ride indoors. The first step in controlling pests is to inspect your plants thoroughly before bringing them inside. Check under the leaves, around the stems, and even the soil surface for any unwelcome guests. If you spot pests, treat the plants with insecticidal soap or a homemade solution of water and mild dish soap before moving them indoors.
Once your plants are inside, maintaining a regular routine of checking for pests is key. I know it’s easy to let this slide, but trust me, a quick once-over every week can prevent a minor issue from becoming a full-blown infestation! Neem oil is another favorite of mine for its effectiveness against a wide range of pests without harming the plants. And remember, healthy plants are less likely to succumb to pests, so keeping your plants well-watered, properly lit, and in the right humidity will go a long way in keeping those pesky critters at bay!
Watering Wisely
Indoor plants have different watering needs than their outdoor counterparts, especially in fall when growth slows down. Overwatering is one of the most common mistakes, and it can be so frustrating to watch your plants suffer from yellowing leaves or root rot despite your best intentions. As a rule of thumb, it’s better to let the soil dry out slightly between waterings. Most indoor plants, especially those with fleshy leaves like succulents and snake plants, prefer to be on the drier side during the cooler months.
When you water, make sure to do so thoroughly, allowing water to flow out of the drainage holes. This ensures that the roots are adequately hydrated and prevents salt buildup in the soil, which can damage your plants over time. I always like to use room-temperature water; cold water can shock the roots, and nobody wants that! And remember, each plant is unique — take the time to learn the specific needs of your indoor garden inhabitants, and they’ll reward you with healthy growth all year long.
Fertilizing with Care
Fertilizing can be a bit tricky in the fall since most plants are entering a period of slower growth. If you’ve ever wondered why your plants seem to struggle after a feed, it might be because they don’t need as much fertilizer in the cooler months! I generally cut back on fertilizing in the fall, switching to a diluted solution once a month rather than the more frequent feeding schedule of spring and summer. This gives the plants just enough nutrients to stay healthy without overwhelming them.
For tropical plants like Monstera or Fiddle Leaf Fig, which are native to nutrient-rich rainforests, a gentle feeding during the fall can help keep their large leaves looking vibrant. Just remember, less is more — over-fertilizing can lead to salt buildup in the soil and even cause leaf burn. I find that using a balanced, water-soluble fertilizer works best, but organic options like worm castings or compost tea are fantastic too! They provide a slow-release nutrient boost and are kinder to both your plants and the environment.
Pruning and Cleaning
Pruning and cleaning your indoor plants are essential parts of fall care, and I can’t emphasize enough how much it helps keep them healthy and looking their best! Removing yellowed or dead leaves, trimming leggy growth, and pinching back new shoots can encourage bushier growth and prevent diseases. I love taking this time to really connect with my plants, inspecting each one closely and giving it a bit of TLC. Plus, a clean plant is a happy plant! Dust can block light and clog pores, so gently wiping down leaves with a damp cloth every few weeks can make a big difference.
Pruning is particularly important for plants like Ficus and Pothos, which can become unruly if left unchecked. Just be careful not to remove too much at once, especially in the fall when plants are beginning to slow down. If you’ve ever felt like your plants are getting a bit out of hand, a little trim can work wonders, making them easier to manage and more aesthetically pleasing. And don’t forget to clean those pruning shears! A quick dip in rubbing alcohol will prevent the spread of disease from one plant to another.
Repotting as Needed
Fall is generally not the best time for major repotting, but sometimes, it’s necessary! If you notice that your plant is root-bound — with roots circling the inside of the pot or emerging from the drainage holes — it might be time for a new pot. I know it can be intimidating to repot a plant, especially when it’s doing well, but giving it a bit more space can help it continue to thrive indoors. Choose a pot that’s only slightly larger than the current one, and be sure to use fresh, well-draining soil.
If you’ve ever struggled with plants that seem to stop growing or are constantly thirsty, repotting could be the answer. This is also a great time to check for any root rot or pests that might have gone unnoticed. Just remember to be gentle — fall is a time when many plants are preparing to rest, so don’t disturb them more than necessary. If your plant seems happy in its current home, there’s no need to rush to repot it; you can always wait until spring!
