Phalaenopsis orchid care is one of the easiest ways to get started with growing orchids. Phalaenopsis, also known as the moth orchid, is the most commonly available orchid. There are over 70 species of phalaenopsis and countless hybrids. They originate from tropical and subtropical Asia and northeastern Australia, and are the orchids you’ll most often find in supermarkets and garden centres.

This orchid is a warm-growing epiphyte (meaning it grows in the air rather than soil) and naturally lives in the middle layer of the rainforest. It grows in a V-shape, with new leaves forming at the top. Plant size ranges from miniature (about 6 inches) to larger specimens (up to 20 inches). Leaves are thick, oval, and fleshy, and a mature plant typically has 4-6 leaves. Older leaves will naturally yellow and drop.

Flowers grow on spikes that emerge from the base of the plant. Some plants produce a single spike, while others produce multiple or branching spikes. Flower size ranges from 1 to 6 inches wide and blooms can last 2-3 months. Many phalaenopsis require a two-week period of cooler temperatures (about 10 degrees lower than normal) to initiate flowering.

Because phalaenopsis are epiphytes, their care differs from typical houseplants. In the wild, they receive bright but filtered light from above. Indoors, an east-facing window is ideal. In summer, you may need to soften the light with a sheer curtain.

Good Phalaenopsis orchid care means mimicking their natural rainforest environment. In nature, orchids receive brief rain showers and dry out between watering.  Their exposed roots allow for excellent drainage. In pots, this balance is harder to achieve, which can lead to issues like root rot.

Interestingly, phalaenopsis naturally grow in a downward orientation. Mounting them on bark, tree fern slabs, or similar materials can better mimic their natural habit and prevent water from collecting in the crown.

If grown in pots, orchids should be planted in media such as bark or moss – not soil. Clear pots with plenty of drainage holes are helpful. Regular soil holds too much moisture and restricts airflow, which can damage roots.

Water phalaenopsis about once a week, ideally in the morning. Soak the roots and media thoroughly (placing the pot in a sink works well) for about 30 minutes. After watering, the roots should appear green. Water again when they turn silvery.

Fertilize lightly. Orchids don’t have direct access to nutrients in the wild, so use a very diluted fertilizer. Choose one with a lower middle number (nitrogen-heavy formulas can be problematic). Always fertilize after watering for better absorption.

Because the growing media breaks down over time, repot orchids every 2–3 years. Old media becomes compacted and holds too much moisture. Avoid repotting while the plant is in bloom, as this can cause flowers to drop.

Phalaenopsis can experience common houseplant pests. Mealybugs (white, cottony clusters) and scale (small oval bumps) are the most common. Both can be treated by wiping leaves with alcohol and using repeated insecticide treatments. Ladybugs can also be introduced to help control infestations.

They are also prone to “bud blast,” where buds develop but then brown, wilt, and fall off. This is usually caused by environmental stress such as temperature or light changes. If this happens, cut the spike and allow the plant to recover – it will rebloom when ready.

Propagation from seed is difficult, but plants may occasionally produce a baby plant called a “keiki” on the flower spike. This can be separated once it has a few leaves and roots about three inches long.

There are also a few common myths. Watering with ice cubes is not recommended – cold water can damage the plant and doesn’t provide enough moisture. Another myth is that phalaenopsis can be naturally blue.  Most blue orchids are dyed, and future blooms will return to white.

Phalaenopsis orchids are an excellent entry point into orchid growing. They come in a wide range of colours and patterns, are relatively affordable, and help teach the unique care requirements of orchids.