How to Keep Indoor Plants Healthy in Winter

Your houseplants aren’t imagining it — winter genuinely is harder on them, and learning how to keep indoor plants healthy in winter means adjusting habits that worked perfectly fine all summer but quietly start working against your plants the moment the heating turns on and the days get shorter.

I lost two plants my first winter as an apartment plant owner before I figured out I was still watering them like it was July. Turns out winter care isn’t about doing more — it’s about doing less, in the right ways, while paying closer attention to a few things summer never demanded from you. Here’s what actually changes and how to adjust for it.

Why Winter Is Genuinely Harder on Houseplants

Three things shift dramatically for most houseplants once winter arrives: light, humidity, and temperature. Days get shorter and the sun sits lower in the sky, which means even a bright summer windowsill often gets meaningfully less light in December than it did in July.

Indoor heating dries out the air significantly, which is a bigger deal for plants than most people realize, since many popular houseplants originate from naturally humid environments. And temperature swings near drafty windows or doors can stress plants that were perfectly comfortable in a stable summer room. None of this means your plants are doomed — it just means the care that worked all summer needs a few deliberate adjustments.

Water Less Than You Think You Should

This is the single biggest mistake people make in winter, and it was mine too. Most houseplants slow their growth significantly during winter, entering a semi-dormant state, which means they use up soil moisture far more slowly than they did during their active summer growth.

Watering on the same schedule you used in summer is one of the fastest ways to end up with soggy, oxygen-starved roots. Instead, check soil moisture before every watering rather than relying on a fixed schedule, and expect most plants to need water noticeably less often — sometimes half as frequently as their summer routine.

Signs you’re overwatering in winter:

• Soil that stays damp for more than a week after watering
• Yellowing leaves that feel soft rather than crisp
• A musty smell coming from the pot

Move Plants Closer to Available Light

With the sun sitting lower and days shortening, plants that thrived a few feet back from a window in summer may need to move right up against the glass in winter just to get comparable light. It’s worth doing an honest reassessment of your plant placement once the season shifts, rather than assuming last season’s setup still works.

South-facing windows generally offer the most consistent winter light in the Northern Hemisphere, so if you have a choice of window, that’s usually your best bet for anything that isn’t a true low-light plant. Rotating pots occasionally also helps, since plants tend to lean more dramatically toward whatever light they can get during shorter winter days.

When to consider a grow light:

• Your plants are stretching or leaning noticeably toward windows
• New growth looks pale, small, or sparse compared to summer
• You don’t have a bright south-facing window available

A simple, inexpensive grow light can bridge the gap for plants that need more consistent light than a winter window alone provides.

Boost Humidity Indoors

Central heating is efficient at keeping a room warm and remarkably effective at drying out the air at the same time, often dropping indoor humidity well below what many common houseplants prefer. Signs of low humidity stress include crispy brown leaf tips and edges, even when watering seems otherwise on track.

A few simple fixes make a real difference here. Grouping plants together creates a small pocket of shared humidity through natural transpiration. A pebble tray filled with water beneath a pot adds localized moisture as it evaporates. And a small humidifier placed near a cluster of humidity-loving plants, like ferns or calatheas, can meaningfully improve their winter comfort without much ongoing effort.

Keep Plants Away from Drafts and Heat Sources

Sudden temperature swings stress most houseplants more than a slightly cooler, stable room ever would. A spot right beside a frequently opened door, a drafty window, or directly above a heating vent puts plants through repeated temperature shifts that can cause stress, even if the average temperature in the room seems fine.

Move plants a few feet from these problem zones if possible, and be especially mindful of windowsills in older homes or apartments, where cold can radiate through the glass even with the heat running. A plant that touches a cold windowpane overnight can suffer, even if the room itself feels comfortable.

Ease Off Fertilizing Almost Entirely

Since most houseplants slow their growth significantly in winter, they also need far less feeding during this period, if any at all. Fertilizing a semi-dormant plant doesn’t help it grow faster — it mostly just risks a buildup of unused nutrients in the soil, which can actually stress the roots.

Hold off on fertilizer entirely from late fall through winter for most common houseplants, and resume your regular feeding schedule once you notice new growth picking back up in spring. This is one of the easiest habits to adopt, since it genuinely means doing less rather than more.

Comparison Table: Summer Care vs. Winter Care

Building a Simple Winter Care Routine

You don’t need to overhaul your entire plant care approach for winter — just adjust a few habits and check in a little more thoughtfully than you would during an easy summer stretch.

Before watering, always check the soil first rather than watering by habit. Once every couple of weeks, glance at plant placement relative to windows and heat sources, since a spot that worked in October can shift as the sun angle keeps changing through winter. If you notice crispy leaf edges, treat it as a humidity signal and consider grouping plants or adding a pebble tray. From late fall through winter, skip fertilizing almost entirely, and plan to resume once spring growth picks back up.

How to Choose Which Plants Need the Most Winter Attention

Not every plant struggles equally through winter, so it’s worth prioritizing your attention. Humidity-loving plants like ferns, calatheas, and peace lilies typically need the most winter support, since dry heated air affects them more noticeably than hardier options.

Meanwhile, naturally drought-tolerant plants like snake plants, ZZ plants, and succulents generally coast through winter with even less water than usual and minimal extra fuss. If you’re building or expanding a plant collection heading into a cold season, leaning toward these more resilient options can make winter care considerably less demanding overall.

Final Thoughts

Learning how to keep indoor plants healthy in winter really comes down to recognizing that your plants are working with less light, drier air, and a slower growth rhythm than they had all summer — and adjusting your care to match rather than fighting against it. Watering less, boosting humidity where it’s needed, and easing off fertilizer entirely are simple changes that make a real difference.

Pay a little closer attention through the coldest months, and most houseplants will come through winter just fine, ready to pick back up their growth the moment spring light returns.

FAQ

Do indoor plants need less water in winter? Yes, most houseplants slow their growth significantly in winter and use soil moisture more slowly, so they typically need watering less often than during summer.

Why are my plant’s leaves turning brown and crispy in winter? Crispy, brown leaf tips are usually a sign of low humidity caused by indoor heating, which can be improved by grouping plants together or using a humidifier.

Should I fertilize houseplants in winter? Most common houseplants need little to no fertilizer in winter, since their slower growth means they aren’t using nutrients the way they do during active spring and summer growth.

Where should I put my plants in winter for the best light? South-facing windows generally offer the most consistent light during winter, and moving plants closer to available windows can help compensate for shorter, dimmer days.

Can cold drafts actually harm indoor plants? Yes, sudden temperature swings from drafty windows, doors, or nearby heating vents can stress houseplants, even if the average room temperature seems comfortable.