The Phalaenopsis orchid, also known as the Moth Orchid, is one of the most popular orchids due to its long-lasting flowers and ease of care. With their graceful blooms resembling moths in flight, Phalaenopsis orchids make a beautiful addition to any home. Fortunately, they are also beginner-friendly and thrive with some basic care.
In this guide, we’ll walk you through simple steps to help your Phalaenopsis orchid bloom and stay healthy year after year.

1. Understanding the Phalaenopsis Orchid
Phalaenopsis orchids are epiphytes, meaning they grow on trees in their natural habitats. They absorb moisture and nutrients from the air rather than from soil. Their thick, fleshy roots are adapted to cling to surfaces and take in humidity.
- Blooming Season: Phalaenopsis orchids typically bloom once or twice a year, with each flower spike producing blossoms that can last for several months.
- Colours: These orchids come in a variety of colours, including white, pink, purple, yellow, and even multi-coloured blooms.
2. Light requirement
Proper lighting is one of the most important factors for keeping your Phalaenopsis orchid healthy and blooming.
- Ideal Light: Phalaenopsis orchids thrive in bright, indirect light. Place your orchid near an east or west-facing window where it can receive gentle, diffused sunlight.
- Avoid Direct Sunlight: Direct sunlight, especially from south-facing windows, can scorch the leaves. Use a sheer curtain to filter the light if needed.
- Light Colour Indicator: Healthy Phalaenopsis leaves should be light to medium green. Dark green leaves indicate the plant is not receiving enough light, while yellowing leaves could mean it’s getting too much.
3. Watering Your Phalaenopsis Orchid
Phalaenopsis orchids have specific watering needs, as overwatering is one of the most common mistakes.
- Watering Schedule: Water your orchid about once a week, or when the potting medium feels dry to the touch. In warmer months, you may need to water more frequently, while in cooler months, less water is needed.
- Watering Technique: Soak the orchid thoroughly, letting the water drain completely through the pot. Avoid letting the plant sit in water, as this can lead to root rot. You can use the “soak and drain” method by placing the orchid pot in water for 5-10 minutes, then letting it drain out.
- Misting: Misting the leaves can help increase humidity, but be careful not to allow water to pool in the crown (the base of the leaves), as this can cause crown rot.
4. Humidity and Air Circulation
As tropical plants, Phalaenopsis orchids appreciate higher humidity levels but also need good airflow to prevent disease.
- Humidity Level: Aim for 50–70% humidity for optimal growth. If your home is dry, especially in winter, you can use a humidity tray or a room humidifier to increase moisture in the air.
- Air Circulation: Ensure good air circulation around the orchid to prevent mould and fungal growth. A gentle fan in the room can help keep the air moving.
5. Temperature preferences
Phalaenopsis orchids are warm-loving plants and do best in stable indoor temperatures.
- Optimal Temperature Range: Keep the daytime temperature between 65-75°F (18-24°C) and nighttime temperatures around 60-65°F (15-18°C).
- Temperature Drop: A slight drop in temperature at night (around 10°F) can help encourage blooming. However, avoid exposing your orchid to cold drafts, as this can cause damage to the plant.
6. Fertilising Your Orchid
To support healthy growth and blooming, Phalaenopsis orchids benefit from regular fertilising during their growing season.
- Fertiliser Type: Use a balanced orchid fertiliser, such as 20-20-20, or one formulated specifically for orchids.
- Fertiliser Schedule: Feed your orchid once a month during the spring and summer, when it is actively growing. In fall and winter, reduce feeding to once every two months.
- Dilution: Always dilute the fertiliser to half-strength to prevent burning the roots. Be sure to water the plant before applying fertiliser.
7. Repotting Phalaenopsis orchids
Repotting is essential to maintain a healthy orchid, as the potting medium will eventually break down and become compact, restricting airflow to the roots.
- When to Repot: Repot your Phalaenopsis orchid every 1-2 years, or when the potting medium begins to break down. It’s also a good idea to repot after blooming or when you notice roots growing out of the pot.
- Potting Medium: Use a well-draining orchid potting mix, typically made of bark, sphagnum moss, and perlite. Avoid regular potting soil, which can suffocate the roots.
- How to Repot: Gently remove the orchid from its pot, shake off the old medium, and trim any dead or rotting roots. Place the orchid in a new pot with fresh medium, making sure the roots are snug but not overly compacted.
8. How to Encourage Re-blooming
Phalaenopsis orchids can re-bloom on the same flower spike or from new growth. To encourage blooming:
- Trim the Flower Spike: After the flowers fade, trim the spike just above the lowest node (the small bump on the stem). This can encourage a new spike or branching from the same stem.
- Temperature Change: A slight temperature drop at night (around 10°F) in the fall can signal the orchid to bloom again.
- Patience: Orchids typically bloom once a year, though Phalaenopsis orchids can sometimes bloom more frequently if cared for properly. Be patient, as it can take several months for a new spike to develop.
9. Common Problems and Solutions
Like all houseplants, Phalaenopsis orchids can encounter issues. Here’s how to troubleshoot common problems:
- Yellowing Leaves: This could be due to overwatering, too much direct sunlight, or old leaves dying naturally. Adjust care accordingly.
- Wrinkled Leaves: This is often a sign of underwatering or root issues. Ensure the orchid is watered thoroughly and check for healthy roots.
- No Blooms: If your orchid isn’t blooming, it may not be receiving enough light. Make sure it’s in a bright location with indirect sunlight, and consider introducing a slight nighttime temperature drop to trigger blooming.
- Pests: Orchids can attract mealybugs, scale, and spider mites. Treat infestations with insecticidal soap or neem oil, and isolate the plant if needed to prevent spreading.
10. Why Phalaenopsis orchids make great houseplants
Phalaenopsis orchids are ideal for beginners and seasoned plant lovers alike. Here’s why:
- Easy Care: With minimal care, these orchids can bloom for months and continue to flower year after year.
- Long-lasting Blooms: Phalaenopsis blooms can last for 3-6 months, adding long-term beauty to your home.
- Wide Range of Colours: With many varieties and colours available, Phalaenopsis orchids are versatile and perfect for any décor style.
11. Conclusion
Caring for a Phalaenopsis orchid may seem intimidating at first, but by following these simple steps, you can enjoy stunning blooms and a healthy plant for years to come. With the right balance of light, water, and humidity, your orchid will reward you with its graceful, long-lasting flowers.
Whether you’re a first-time orchid owner or a seasoned enthusiast, the Moth Orchid is an excellent choice for any indoor garden. Keep it happy, and it will keep blooming to brighten up your space!
FAQS
Do I need to fertilize my Phalaenopsis orchid?
Yes, you should fertilize your orchid with a balanced, water-soluble fertilizer once a month during the growing season (spring and summer). Reduce fertilizing in fall and winter.
How do I get my Phalaenopsis orchid to rebloom?
After the flowers fall off, trim the flower spike just above a node. With proper care, including consistent light, watering, and cooler temperatures at night, your orchid may rebloom in a few months.