Most houseplant problems aren't caused by the wrong plant or a lack of care — they're caused by summer care given in winter, or the reverse. A watering routine that keeps a pothos thriving in July will slowly rot it in January, because the plant behind the pot has changed with the seasons even though it looks the same. Get the seasonal rhythm right and almost everything else falls into place.
This guide is the map. It walks through what changes in each season and links to the detailed guide for every job, so you can go as deep as you like. If you only remember one thing, make it this: plants respond to light and warmth, so follow the plant's growth, not the date on the calendar.
Let Growli keep the calendar for you: Add your plants to Growli and it recalculates each watering and feeding reminder as the seasons turn — nudging you more in spring, easing off through winter, tuned to your light and your rooms.
The one principle behind every seasonal change
Before the season-by-season detail, here's the logic that ties it all together. A houseplant's activity is driven by two things: how much light it gets and how warm it is. Both peak in summer and bottom out in winter. When they're high, the plant photosynthesises hard, grows fast, and draws up a lot of water and nutrients to build new leaves and roots. When they fall, growth slows to a crawl, and the plant needs far less of everything.
Every seasonal adjustment below is just a consequence of that. You water less in winter because a barely-growing plant in cool, damp soil drinks slowly. You feed in summer because a fast-growing plant can actually use the nutrients. You repot in spring because the plant is about to grow into the new space. Once the principle clicks, you can reason your way through any season — and any plant — rather than memorising rules.
Spring — the wake-up
As days lengthen and light strengthens, plants stir out of their winter rest and push their first new growth of the year. Spring is the season of restarting — and it's the busiest for the houseplant owner.
- Ramp watering back up gradually as growth resumes and pots start drying faster.
- Resume feeding once you see active new growth — start gentle, at half strength.
- Repot anything that has outgrown its pot: spring is the ideal window because the plant recovers fast.
- Prune and shape to fix the leggy, stretched growth of winter and encourage bushiness.
- Increase light — but reintroduce brighter spots gradually so shade-adjusted leaves don't scorch.
Start with the complete spring houseplant care guide, then go deeper on waking houseplants up in spring, when to repot houseplants, and pruning houseplants in spring.
Summer — peak growth (and the move outdoors)
Summer is when houseplants do most of their growing. Care is at its most generous — regular watering and feeding to fuel the flush — but the season brings its own hazards: fierce direct sun through glass, fast-drying pots, and the decision of whether to move plants outdoors.
- Water more often as heat and strong light dry pots quickly; check daily in a heatwave.
- Feed regularly through the growing season while plants are actively producing leaves.
- Watch for scorch on plants pressed against hot, sunny glass, and for pots drying out completely.
- Consider moving plants outside for the warm months — but harden them off gradually to avoid sunburn and shock.
The big summer project is the move outdoors: how to move houseplants outside for summer covers when it's warm enough and how to acclimatise plants over one to two weeks so they thrive rather than burn.
Autumn — the wind-down and the move back in
Autumn is the quiet handover between summer growth and winter rest, and it's where you set your plants up to survive the cold. Days shorten, the heating comes on, and growth slows. It's also the deadline for bringing any outdoor plants back inside.
- Taper off watering as growth slows and cooler rooms hold moisture longer.
- Give one last feed in early autumn, then stop for the season.
- Bring tender plants back indoors before nights drop toward 10°C (50°F) — don't wait for the first cold snap.
- Check every returning plant for pests before it crosses the threshold; a warm, predator-free room is where hitchhikers explode.
- Acclimatise plants to indoor light gradually to soften the leaf drop that follows the move.
The pillar for this season is bringing houseplants inside for winter, with detail in fall houseplant care, checking houseplants for pests before bringing them in, and acclimating houseplants back indoors.
Winter — the rest
In winter, less is more. Short, weak days and dry, heated air push most houseplants into a semi-dormant rest where they grow little and need very little. The whole season is about restraint — and about protecting plants from the two winter hazards of overwatering and dry heated air.
- Water much less, and always by the soil — overwatering is the season's biggest killer.
- Stop feeding, or cut to once a month at most, until growth returns in spring.
- Maximise the fading light: move plants to your brightest window, clean the leaves, rotate the pot.
- Manage the heating: lift humidity for tropical foliage, and keep plants off cold glass and away from radiators.
- Expect a rest — don't repot or force growth; a pause in new leaves is normal.
Start with the complete houseplant winter care guide, then dig into watering houseplants in winter, houseplant dormancy, feeding houseplants in winter, houseplants and central heating, and winter light for houseplants.
The year at a glance
| Season | Watering | Feeding | Light | Repotting |
|---|---|---|---|---|
| Spring | Ramp back up | Resume, half strength | Increase gradually | Ideal — do it now |
| Summer | Frequent, generous | Regular | Bright; guard against scorch | Fine if needed |
| Autumn | Taper off | Last feed, then stop | Move toward brightest window | Hold until spring |
| Winter | Much less, by the soil | Stop (or monthly max) | Maximise; clean leaves | Don't — let it rest |
The through-line reads clearly down every column: care rises into summer and falls into winter, because that's exactly what the plant is doing. When you're unsure what a plant wants in a given month, look at the plant — new growth means feed and water; a pause means ease off. For the finer points on any individual plant, browse our plant-care guides by species, since the fussy tropicals and the unflappable succulents each want a slightly different touch.
The four seasons in depth
- Spring houseplant care — the complete guide — the wake-up: watering, feeding, repotting and pruning as growth returns
- Moving houseplants outside for summer — the summer move outdoors, done without scorch or shock
- Bringing houseplants inside for winter — a guide — the autumn move back in, from timing to pest checks
- Houseplant winter care — the complete guide — the rest: watering, feeding, light and heating through the cold months
- Plant-care guides by species — fine-tune any of the above for the specific plants on your shelf
Reviewed and updated by the Growli editorial team. For a plant-by-plant, month-by-month plan, open Growli — it tracks each plant's season for you.
Frequently asked questions
Do houseplants really need different care in different seasons?
Yes. Houseplant growth is driven by light and temperature, both of which peak in summer and fall away in winter. When a plant is growing actively in spring and summer, it needs more water, feeding and light. When it slows down in autumn and winter, it needs much less of all three. Keeping a summer routine going through winter is one of the most common ways houseplants are killed, usually through overwatering.
What is the most important seasonal care rule?
Follow the plant's growth, not the calendar, and water by the soil rather than a fixed schedule. Light and warmth vary from home to home and window to window, so two identical plants can be on completely different rhythms. If a plant is pushing new leaves and drying its pot quickly, it wants water and feed. If it has paused and the soil stays wet for days, ease right off. The plant tells you the season it is actually in.
When should I fertilize houseplants during the year?
Feed through the active growing season, roughly spring to early autumn, and stop for winter. Start gently in spring at about half strength as new growth appears, feed regularly through summer, give one last feed in early autumn, then pause until growth returns the following spring. Feeding a resting plant does not help it, because it cannot use the nutrients, and the unused fertiliser builds up as salts that can damage the roots.
What is the best time of year to repot a houseplant?
Early spring is ideal, just as the plant moves into active growth and can recover quickly from root disturbance and grow into the fresh mix. Early summer is a good second choice. Avoid repotting in autumn and winter for routine potting-up, because a slow-growing plant recovers poorly and fresh compost sits too wet around idle roots. The exception is an emergency such as root rot or a broken pot, which you handle whenever it happens.
Why is my houseplant struggling in winter when nothing changed?
Almost always because the room changed even though the plant looks the same. Shorter, weaker days mean far less light, the heating dries the air, and cooler soil stays wet longer. If you keep watering on a summer schedule the roots sit soggy and rot; if you ignore the dry air the leaf tips crisp. The fix is to water much less and by the soil, stop feeding, maximise light, and add humidity around tropical foliage.
How do I move houseplants outside and back in safely?
Do both moves gradually. In spring or early summer, harden plants off over one to two weeks, starting in shade and increasing sun and time outdoors slowly so leaves adapt without scorching. In autumn, reverse it before nights drop toward 10°C (50°F): acclimatise them back to dimmer indoor light over a week or two, and crucially, inspect and treat every plant for pests before it comes inside, so hitchhikers do not spread to your indoor collection.