How to Care for Orchids and Encourage Them to Rebloom

Orchids are easy to care for. They need a bright spot out of strong midday sun, an airy potting mix and watering at the right time. Phalaenopsis, also known as the moth orchid, can tolerate small care mistakes. Constantly wet roots, too little light and excess fertiliser, however, can quickly lead to root problems and fewer blooms.

These orchid care tips are mainly for Phalaenopsis. Other types, such as Dendrobium, Cymbidium or Oncidium, may have different dormant periods and temperature needs. Check the plant label, too, and inspect your orchid regularly.

Which location gives orchids strong leaves and flowers?

The right spot for an orchid gets plenty of light without exposing it to intense heat behind the glass. An east- or west-facing window suits most Phalaenopsis. The plant gets several hours of gentle morning or evening light there. At a south-facing window, protect the leaves with a curtain or a sheer blind from March to September.

Strong midday sun can leave pale, dry patches on the leaves. If your orchid sits by a south-facing window, place it about 50 to 100 centimetres from the glass and check its leaves after a few days. Very dark green, soft leaves and long gaps between leaves, on the other hand, usually point to too little light.

Keep daytime temperatures between 18 and 24 degrees wherever possible. Temperatures can dip a little at night, but should not stay below 16 degrees. Central heating dries out the plant, while cold draughts and sudden temperature changes can cause buds to drop. Avoid placing the orchid directly above a radiator, beside an open balcony door or in front of an air-conditioning unit.

How do you recognise a good location?

The leaves show whether your orchid is in the right spot. Check it once a week and respond to changes before the roots or buds are damaged.

• Healthy leaves: They are firm, smooth and medium green.
• Too little light: The leaves are dark green and thin, with long gaps between them. New flower spikes do not appear.
• Too much sun: Yellowish or brown patches with sharp edges indicate sunburn.
• Air that is too dry: Buds shrivel, flowers fade faster and aerial roots may become brittle.

Humidity of around 40 to 60 per cent is usually enough in a living room. Do not leave your orchid standing in a saucer of water. Evaporating water raises humidity only temporarily, while wet roots and a damp plant base can encourage fungal problems.

“Roots need air: a loose potting mix and a pot with drainage prevent water from remaining in the pot.”

How should you water orchids without damaging the roots?

When watering an orchid, let the condition of the potting mix guide you, not the day of the week. A Phalaenopsis may need water every seven to ten days in summer. In winter, the interval often stretches to ten to fourteen days because the plant grows more slowly in lower light. Larger pots, cooler rooms and dense potting mix take longer to dry out.

Transparent pots make it easier to check the roots. Moist roots look green, while dry roots are silvery or grey. Check the pot's weight, too, and carefully insert a wooden stick halfway into the bark. If the bark still feels damp, wait before watering again.

Which method works best for watering orchids?

Soaking wets the bark evenly and stops water from simply running off the surface. Use lukewarm, preferably low-lime water. If your tap water is very hard, mix it with filtered water or use clean collected rainwater.

1. Take the inner pot out of the decorative planter.
2. Check the roots. If they are green and plump, wait a few more days.
3. Place the inner pot in water for about ten to fifteen minutes.
4. Let the pot drain completely afterwards.
5. Empty the decorative planter before putting the orchid back.

If watering from above, pour slowly over the bark. Do not let water collect in the leaf rosette. If any drops gather there, dry the centre of the leaves with a soft cloth or kitchen paper. Misting does not replace thorough watering and can increase the risk of rot if moisture remains trapped.

If you also want to water balcony and container plants evenly, explore the garden irrigation category for more solutions. For orchids, careful hand watering is generally enough.

What signs indicate incorrect watering?

Soft, dark brown roots and yellow, limp leaves usually indicate overwatering. An underwatered orchid may also have drooping leaves, but its roots will be dry and silvery. Check both signs before increasing the amount of water.

Do not cut off rotten roots straight away if only a few areas are affected. First let the pot drain, then remove dead tissue with clean scissors and repot the plant in fresh, dry potting mix. Healthy roots stay firm, even when their surface looks silvery.

How can you fertilize orchids without risking salt damage?

In nature, orchids often grow on trees and receive only small amounts of dissolved nutrients. Therefore, use a special orchid fertilizer instead of highly concentrated fertilizer for vegetables or balcony plants. A low dosage protects the sensitive roots and is sufficient for new leaves, aerial roots and flower spikes.

Start fertilizing as soon as the plant is visibly growing. New leaves or root tips indicate active development. Apply a weak nutrient solution every second or third time you water. During the low-light winter months, applying fertilizer every four to six weeks is often sufficient. Heavy fertilizing cannot replace a bright location.

What does a safe fertilizing schedule look like?

• Before fertilizing: Moisten the bark first with clean water. Dry roots are more sensitive to nutrient salts.
• During active growth: Apply orchid fertilizer according to the manufacturer's instructions; for sensitive plants, start with a weaker concentration.
• After repotting: Wait around three to four weeks to allow minor root injuries to heal.
• In low light: Reduce the frequency because the plant processes fewer nutrients.
• Regularly: Flush the potting mix with clean water every four to six weeks to wash out salt residues.

You can recognize overfertilizing by white deposits on the bark, brown root tips or dried-out leaf edges. Yellow leaves do not automatically indicate a nutrient deficiency. Check the light, water and roots first.

For supplying nutrients, the two available orchid fertilizers are suitable

Orchid fertilizer 500 ml

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Orchid fertilizer 500 ml

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“Phalaenopsis often respond to a slight drop in nighttime temperature by producing new flower spikes.”

Which potting mix and pot are best for repotting?

Do not repot an orchid according to a fixed schedule. Check the bark and roots instead. If the potting mix breaks down, becomes compacted or stays wet for too long, the roots lack air. An unstable pot, a musty smell or many dead roots are also signs that it is time for a change.

The best time is usually after flowering, when the plant is producing new roots. Use coarse bark pieces that absorb water while leaving air pockets. Regular potting soil retains too much moisture and blocks airflow around the roots.

How to repot an orchid step by step

1. Water the plant lightly the day before. This makes flexible roots easier to loosen from the old pot.
2. Carefully remove the orchid and use your fingers to remove old pieces of bark.
3. Rinse the roots with lukewarm water if necessary.
4. Cut away soft, hollow or completely brown roots with clean, sharp scissors.
5. Place the plant in a pot only slightly larger than the previous one, with drainage holes.
6. Fill fresh potting mix loosely around the roots. Do not press the bark down firmly.

A transparent inner pot makes it easier to check the roots later. The pot should not be too large, as excess potting mix stays wet for a long time. A decorative outer pot keeps the plant stable, but must not collect water.

For changing the potting mix,

Specialist orchid potting mix - 7 L

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How do you encourage new blooms after the dormant period?

After flowering, your orchid does not need drastic treatment. First remove any fallen flowers and inspect the flower spike. A completely brown, dry spike will not produce any more new buds. Cut it off close to the base with disinfected scissors.

A green spike may continue flowering. Trim it about one to two centimetres above a strong node, the small thickened point on the spike. The plant may produce a side branch there. Some Phalaenopsis benefit from this, while others prefer to develop new flowers on a fresh spike growing from the base.

What conditions encourage a new bloom?

Light remains the most important factor. After flowering, move the orchid back to its brightest suitable location. Continue watering as needed and only fertilize when new leaves or roots are growing.

A difference between warm daytime and slightly cooler nighttime temperatures can encourage flower formation. Lower the temperature by about three to five degrees for a few weeks, but never below 16 degrees. Avoid drafts, cold window panes and sudden changes of location.

Also check the plant for scale insects, mealybugs and thrips. Isolate affected orchids immediately. Carefully wipe away individual pests and check the undersides of the leaves, the leaf axils and the new root tips.

Orchid care throughout the year

• Spring: Slowly increase watering as more light reaches the plant. Start applying a weak fertilizer when new roots begin to grow.
• Summer: Protect the leaves from intense midday sun and check the growing medium more frequently. Ventilate the room without exposing the orchid to cold drafts.
• Autumn: Reduce fertilizing as light levels decrease. A slight drop in temperature at night can encourage new flower spikes.
• Winter: Keep the plant in a bright spot and away from radiators. Extend the intervals between watering and remove any water from the outer pot.

Do not just observe the flowers, but also the roots, leaves and growing medium. A vigorous orchid produces new root tips, firm leaves and stands securely in its pot. Regular checks allow you to adapt its care to the plant's actual needs.

This keeps orchid care simple: place it in a bright spot, water only when the bark is dry, allow excess water to drain away, fertilize sparingly and repot in good time. These simple steps provide the foundation for healthy roots and recurring blooms for many months.

Frequently asked questions

How often should I water my orchid?

A Phalaenopsis usually needs water only every seven to ten days, and often less frequently in winter. Check the roots and potting mix instead of watering on a set schedule. Silver-colored roots and an almost-dry pot indicate that watering is needed. Briefly soak the inner pot and let it drain completely.

Where is the best place to keep an orchid?

A bright spot near an east- or west-facing window suits most Phalaenopsis orchids. At a south-facing window, a sheer curtain protects the leaves from scorching. Keep the plant away from radiators, air conditioners, and cold drafts. Daytime temperatures of around 18 to 24 degrees encourage growth and flowering.

How do I fertilize an orchid correctly?

Use a special orchid fertilizer and follow the manufacturer's dosage instructions. Use a weaker solution if the roots are sensitive. Apply fertilizer only to already-moist potting mix, and regularly flush the bark with clear water. During active growth, fertilizing every second or third watering is usually sufficient.

When should I repot an orchid?

Repot your orchid when the bark breaks down, water pools in the pot, or many roots become soft and brown. Use coarse orchid potting mix and a pot with drainage holes. Choose a pot only slightly larger than the current one. Leave healthy green or firm silvery roots on the plant.

How can I get my orchid to bloom again?

Place the orchid in a bright spot, water as needed, and apply fertilizer sparingly during active growth. After flowering, cut a completely brown flower spike off at the base. You can trim a green spike above a strong node. A slight drop in temperature at night can encourage new buds.