Orchid (Phalaenopsis) care guide
Phalaenopsis spp.
Medium care✅ 🐾
Orchid (Phalaenopsis) (Phalaenopsis spp.) does best when watered about every 7 days. Let the top 2–3 cm of soil dry out before watering again; adjust the rhythm to season and light.
Place it in bright indirect light. Humidity needs are high, and it appreciates misting roughly every 5 days. The comfortable temperature range is 18–26°C. During the growing season, feed it about every 30 days.
Care difficulty: moderate.
✅ Pet safety: Orchid (Phalaenopsis) is non-toxic to cats and dogs — non-toxic.
Phalaenopsis is an epiphyte: in the wild its roots cling to tree bark in open air rather than sitting in soil. That's why it's sold in chunky bark inside a clear pot, and why the roots themselves tell you when to water: silvery-grey means dry, bright green means freshly watered. The right way to water is to soak the bark for 10 to 15 minutes and let it drain completely, roughly once every 7 days, never letting water sit in the crown where the leaves meet. Getting it to flower again is less about fertiliser and more about light and a few weeks of cooler nights in autumn.
Common problems and fixes
Orchid won't rebloom
Why: Phalaenopsis sets a new flower spike after several weeks of nights about 5 °C cooler than the days, combined with enough bright, indirect light. In a warm, dim flat with the same temperature day and night, that trigger never comes.
What to do: From September, keep it in bright indirect light near a window where nights drop to around 18 °C while days stay at 23 to 25 °C. A spike usually appears within 4 to 8 weeks; keep feeding monthly with an orchid fertiliser.
Wrinkled, limp orchid leaves
Why: Dehydration, either from underwatering or, more often, because the roots have rotted and can no longer drink.
What to do: Check the roots through the pot or tip it out. Firm silver or green roots mean it simply needs more regular soaking; brown, mushy or papery hollow roots should be cut off and the plant repotted into fresh bark.
Orchid leaves turning yellow
Why: One bottom leaf slowly yellowing every year or so is normal shedding. Several leaves yellowing fast, or yellowing that starts at the base with dark patches, means root or crown rot.
What to do: Leave a naturally yellowing bottom leaf until it drops on its own. For rot, cut away mushy tissue, dust the wounds with cinnamon or activated charcoal and keep the plant drier, making sure the crown never stays wet.
Orchid buds falling off
Why: Bud blast: a sudden change such as moving the plant, a cold draught, hot air from a radiator, very dry air or ethylene from a nearby fruit bowl.
What to do: Once buds form, leave the pot in the same spot and orientation, away from heaters, draughts and ripening fruit. Mist the air around it in the morning to keep humidity up.
Black, soft centre of the orchid
Why: Crown rot from water trapped where the leaves meet, especially after evening watering or misting straight into the centre.
What to do: Tip out any water, cut away the rotten tissue and dust with cinnamon, then keep the crown dry. The central growing point may be lost, but the plant often pushes a side shoot or keiki from the stem.
Roots growing out of the pot
Why: Completely normal: aerial roots are how an epiphyte climbs and catches moisture from the air.
What to do: Leave healthy aerial roots alone and mist them lightly with the rest of the plant. Only trim roots that are brown and dry or mushy, using sterilised scissors.
Care through the seasons
☀️ Spring and summer
From spring to late summer the orchid grows new leaves and roots instead of flowers. Soak the bark about every 7 days, whenever the roots have turned silvery, feed once a month with orchid fertiliser, and mist the aerial roots and leaf undersides in the morning. This is the right time to repot, every two years, into fresh bark after the last flowers drop.
❄️ Autumn and winter
Autumn is when reblooming is decided: cooler nights from September to November trigger a new spike, and flowers then open in winter or spring and last two to three months. In the heating season the bark dries faster, so check the roots more often, keep the pot off radiators and don't let leaves touch cold window glass. After flowering, cut the spike above the second node from the base for a possible side branch, or at the base if it turns brown.
How to propagate
Phalaenopsis grows from a single central stem, so it can't be divided like most houseplants. The realistic home method is a keiki, a baby plant that sometimes forms on a node of an old flower spike or at the base of the stem.
Leave the keiki attached until it has two or three leaves and at least two or three roots about 5 cm long. Then cut it off with a bit of spike attached, pot it into fine bark in a small clear pot and keep it slightly more humid than the mother plant for the first month. Seeds can only be germinated in sterile laboratory conditions.
Tips from experience
- Water in the morning so any drops in the crown evaporate by night.
- Use soft, room-temperature water; cold water shocks the roots.
- Keep it in a clear pot with holes and never leave it standing in water in a decorative cachepot.
- Repot into orchid bark, never ordinary potting soil.
- Skip the ice-cube trick: it chills the roots and waters unevenly.
🌱 Never forget to water it
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▸How often should I water Orchid (Phalaenopsis)?
About every 7 days. In winter or lower light, stretch the interval; in hot bright rooms, shorten it slightly. Always check the soil first.
▸What light does Orchid (Phalaenopsis) need?
Orchid (Phalaenopsis) prefers bright indirect light, with a comfortable range of 18–26°C.
▸Is Orchid (Phalaenopsis) toxic to cats and dogs?
No, it is considered safe for cats and dogs. Non-toxic.
▸How often should I fertilize Orchid (Phalaenopsis)?
Roughly every 30 days during spring and summer; pause or halve feeding in winter.
▸Should I mist Orchid (Phalaenopsis)?
Yes — it likes high humidity, so mist about every 5 days or use a pebble tray/humidifier.
▸How do I water a Phalaenopsis orchid?
Soak the pot in a bowl of room-temperature water for 10 to 15 minutes, then let it drain completely. Do it when the roots turn silvery, roughly every 7 days, and keep water out of the crown. Plantik can remind you on that weekly rhythm.
▸How do I get my orchid to bloom again?
Give it bright indirect light and, from early autumn, nights about 5 °C cooler than the days for a few weeks. That temperature drop is the main trigger for a new flower spike.
▸What should I do with the spike after the flowers fall?
If the spike stays green, cut it just above the second node from the base and it may branch and flower again. If it turns brown and dry, cut it off at the base.
▸Should I cut off my orchid's aerial roots?
No. Healthy aerial roots are part of how the plant takes in water and air. Only remove roots that are dead, meaning papery and dry or brown and mushy.