Chonk monster inspecting a specialist houseplant with a magnifying glass

CHONK DIRECTORY · Indoor plant care · Guide 9 of 9

How to overwinter houseplants

Choose growth, rest, storage or cuttings; clean arrivals; then match winter light and water to each plant.

2 min picture guideReviewed 29 August 202611 sources

Picture guide · three scenes

Give every houseplant the winter it needs.

Pick the right route, clean arrivals, then match winter care to real growth.

01Pick a path

Scene 1

Growing or resting?

Keep tropical evergreens growing, let naturally dormant plants rest, and store only species whose bulbs, corms or tubers tolerate dry dormancy.[1][2]

  • Keep growing
  • Take cuttings
  • Store true bulbs
02Check in

Scene 2

No pests past this point

Before plants come inside, inspect leaves, stems, compost and pots; clean robust plants, then isolate newcomers for three to four weeks.[3][5]

  • Inspect every surface
  • Clean leaves and pots
  • Isolate 3–4 weeks
03Winter gently

Scene 3

Slow now, wake later

Ease back water and feed as growth slows, support active plants with light, then return them outdoors gradually after frost risk passes.[6][7][1]

  • Water by growth
  • Light active plants
  • Reacclimatise after frost
Open the full winter checklist

01

Choose the winter route

Start while autumn nights are cooling, before frost damages tender plants. The right method depends on the species, its storage organs, the light and temperature you can provide, and whether saving it is worth the space.[1][2]

  • Keep actively growing: evergreen tropical foliage plants, citrus and prized specimens when you have suitable warmth and bright light.
  • Keep semi-dormant: only species known to tolerate a cool winter rest; reduce water without assuming every tropical can survive cold or darkness.
  • Store dormant: true bulbs, corms, tubers or rhizomes such as cannas, dahlias, gladioli, caladiums, tuberous begonias and some elephant ears.
  • Take cuttings: compact insurance for easy-rooting plants such as coleus, pelargoniums, plectranthus and many tender bedding plants.
  • Let go: true annuals, replaceable plants and badly infested specimens can demand more winter space and care than they are worth.

02

Bring active plants indoors cleanly

Move outdoor plants towards shade before the final move, then inspect leaf undersides, joints, stems, compost, pot rims and drainage holes. Rinse robust plants, clean the pots and keep arrivals apart from the established collection for three to four weeks while you monitor for pests.[3][4][5][6]

  • Light: use the brightest suitable position; even bright indoor light is much weaker than outdoor shade, so add a grow light when the plant cannot maintain healthy growth.
  • Water: stop using the summer calendar. Check the growing medium, water thoroughly when the species needs it, let excess drain and empty cachepots and saucers.
  • Feed: reduce or pause fertiliser when growth slows; feed only healthy active growth receiving enough light.
  • Air and temperature: avoid cold glass, draughts, radiators and fireplaces. Use a humidifier or group compatible tropicals if heated rooms become very dry.
  • Pests: inspect at every watering and use only a treatment whose label permits that plant, pest and indoor setting.

03

Manage dormancy and the spring return

Dormant storage is a species-specific preservation method, not a universal houseplant shortcut. Label storage organs, lift and cure them as required, use breathable packing at the correct temperature, and inspect through winter for rot or excessive shrivelling.[7][8][9][10][1]

  • Do not seal damp bulbs, corms, tubers or rhizomes in airtight plastic, and do not store every type at one temperature.
  • Take healthy cuttings before cold damage, root them in an airy medium and keep them bright, frost-free and on the dry side once established.
  • Give desert cacti and most succulents abundant light, excellent drainage and much less winter water; let the mix dry between thorough waterings.
  • In spring, increase water and feed only as growth resumes. Return plants outdoors after frost risk and acclimatise them to sun and wind gradually over one to three weeks.

Winter care & space planning

Useful next steps

Identify the plant first, then use the pest, lighting, storage or propagation route that matches its biology and your available winter conditions. These links are practical starting points, not a universal schedule.

Evidence used (11 sources)
  1. 1
    How to overwinter plants ↗Iowa State University Extension and Outreach
  2. 2
  3. 3
    How and when to bring houseplants indoors before winter ↗Iowa State University Extension and Outreach
  4. 4
    How to help a poorly houseplant ↗Royal Horticultural Society
  5. 5
  6. 6
    Houseplant care ↗University of Illinois Extension
  7. 7
    How to overwinter tender perennials ↗Iowa State University Extension and Outreach
  8. 8
  9. 9
    Tender perennials: cuttings ↗Royal Horticultural Society
  10. 10
    Growing succulents indoors ↗Iowa State University Extension and Outreach
  11. 11
    All about holiday cacti ↗Iowa State University Extension and Outreach