How to Get Your Phalaenopsis Orchid Flowering Again With a Summer Outdoors

The answer is often no more than a change of location away.

Anyone who brings home a Phalaenopsis from a garden centre initially enjoys weeks of magnificent flowers. Yet a year later, the pot often contains nothing but green leaves. The plant is soon labelled “temperamental” or “difficult”. In truth, it simply responds very consistently to its surroundings – and that is where an unexpected professional tip comes in: the right, slightly unconventional position determines whether your orchid flowers again year after year.

Why the usual windowsill often holds an orchid back

In many homes, an orchid remains in the same place for months, usually on a windowsill above a radiator. On the face of it, this seems sensible: there is light and warmth, and watering is easy. For the plant, however, it can mean a permanent state of exception.

Phalaenopsis orchids originate in tropical forests. There, they grow on tree trunks amid humid air, gentle air movement and noticeable differences between daytime and night-time temperatures. In our continually heated rooms, these very signals are missing.

“Without cooler nights and slightly changing conditions, the orchid lacks the trigger it needs to produce a new flower spike.”

Typical windowsill problems include:

• Constant temperature: around 20 °C both day and night, with no autumn or spring stimulus.
• Dry central-heating air: humidity drops during winter, roots suffer and leaves can appear limp.
• Unsuitable light: too dim deeper inside the room, or leaf scorch behind south-facing windows.

For flowering, daytime temperatures of around 18 to 22 °C and cooler nights of 12 to 15 °C are ideal. The plant also needs plenty of bright but indirect light, such as at an east-facing window. If conditions remain almost unchanged all year, the plant stays locked in “permanent summer” – attractively green, but reluctant to flower.

The unusual professional tip: move the Phalaenopsis orchid outdoors for summer

A Finnish garden designer takes a strikingly different approach based on her experience: rather than relying on specialist fertiliser or complicated care, she recommends a bold yet simple change of position. Her trick is to put orchids outside during summer.

She does not simply place her Phalaenopsis on the patio. Instead, she suspends it in a hanging basket, sheltered but outdoors. Although this may initially seem unusual, the setting is much closer to conditions in its natural habitat.

“Summer outdoors gives the orchid exactly what it lacks on a living-room windowsill: natural humidity, a gentle breeze and a clear difference between day and night.”

How to set up an outdoor position

To follow this approach, proceed roughly as follows:

• Choose a suitable period: in Central Europe, this is generally from early to mid-June, once night-time temperatures consistently remain above 12 °C.
• Use a hanging basket: simply place the pot in a basket or hanging planter; there is no need to repot it or create a complicated mounting system.
• Find a partially shaded spot: beneath a canopy, in the bright shade of a tree, or against a north- or east-facing wall.
• Avoid direct midday sun: leaf scorch causes more harm than any benefit gained from cooler temperatures.
• Manage rainfall: protect the orchid from prolonged rain or heavy downpours so that its roots are not left sitting in water.

Hang the planter or basket high enough to prevent slugs and other ground-dwelling creatures from reaching the plants. In wet summers, a position beneath a roof overhang is worthwhile; in drier areas, the site can be more exposed to the air.

What a summer outdoors really does for an orchid

Moving outside works on several levels at once, and it is precisely this combination that has such a strong effect on the plant’s willingness to flower.

Factor	Living room	Outdoors in summer
Temperature	constant, with little day/night variation	warmer by day, noticeably cooler at night
Humidity	often dry due to central heating	higher, especially after rain and in the evening
Air movement	usually still	light wind and a steady supply of fresh air
Light	artificial light and window filtering	a natural daily pattern with changing brightness

Orchids interpret these very cues as the starting signal for a new flowering phase. Many owners report that fresh flower spikes suddenly appear in late summer or early autumn after their plants have spent several weeks hanging outside.

How to care for an orchid outdoors

A new location does not mean every routine must be completely changed. However, a few aspects need adjusting:

• Watering: outdoors, the growing medium can dry out more quickly depending on wind and temperature. Before watering, check with a finger whether the bark is still slightly moist.
• Fertilising: during the growing season, use a specialist orchid fertiliser at low strength every two to three weeks.
• Checking: inspect leaves and roots regularly, so discolouration, feeding damage or soft patches are spotted early.
• Adapting to heat: during heatwaves above 30 °C, move the plant into deeper shade or temporarily closer to the house wall.

Once the nights become noticeably cooler again in late summer, bring the plants back indoors in good time. Around 10 to 12 °C should be treated as the lower limit.

The ideal indoor position after summer

Once back indoors, the orchid is happiest in a bright place without harsh direct sun. An east-facing window is usually ideal, while a north-facing window can work if furniture does not block the available light.

Suitable rooms include, for example:

• a bathroom with a window and good ventilation;
• a lightly heated guest-room or bedroom corner;
• a conservatory that is not heated continuously.

Daytime temperatures can sit at around 20 °C, with a slight fall at night. Brief fluctuations will not cause harm, provided the plant is not exposed directly to cold draughts. The air should circulate, but icy air should not whistle in through an open window.

What balcony owners can do without a garden

Anyone without a garden can achieve the same effect on a balcony. Protection from wind, direct midday sun and heavy rain is what matters. A covered east- or west-facing balcony is especially suitable.

The orchids should remain in their free-draining pots and can be placed or hung in a simple basket. Effective drainage remains essential: do not use a cachepot without a drainage hole, and do not leave saucers where rainwater can collect.

Common mistakes that stop orchids flowering

Alongside an unsuitable location, the same issues repeatedly prevent new flowers from forming:

• Constant wetness: roots rot, leaving the plant unable to build up energy for flowers.
• Cutting old flower spikes too early: some Phalaenopsis produce side shoots with fresh buds on partly dried-out spikes.
• A position that is too dark: remember that leaves often need less light than abundant flowering does.
• Repeatedly moving the plant: after its summer move, the orchid needs a reasonably permanent position indoors again.

Why temperature differences make such a difference

Many orchid species use the shift between warm days and cooler nights as a trigger for another flowering phase. In their native environment, this indicates the transition between rainy and dry seasons – a time when pollinators are active and reproduction is worthwhile.

Recreating this natural rhythm on a small scale helps the plant activate its internal clock. This does not mean sitting beside the radiator with a thermometer. Even a slightly cooler bedroom compared with a warm kitchen-living area makes a noticeable difference.

More enjoyment from orchids with minimal extra effort

Perhaps the most appealing point is that this location trick requires no exotic equipment, specialist accessories or daily rituals. A hanging basket, a weather-protected outdoor spot and a watchful eye on temperature and light are often enough to produce fresh flowers on the same plant for years.

Those who regard their orchid not merely as a decorative object but as a living housemate may be surprised by how quickly it responds. In many cases, a new delicate flower spike appears as early as the first autumn after its outdoor “summer holiday” – clear evidence that the unfamiliar location was exactly the stimulus the orchid had been waiting for.