We Do Same Day Delivery if Order is Placed Before 1:00 PM. For Weekends Order has to be placed Before 11:00 AM.
02 9683 1116

Caring for Phalaenopsis Orchids for Longevity - Comprehensive Guide

Published: Wednesday 23 August 2023

Caring for Phalaenopsis Orchids for Longevity - Comprehensive Guide

Caring for Phalaenopsis Orchids for Longevity - Comprehensive Guide

Phalaenopsis orchids, also known as the “Moth Orchid,” are some of the most popular and rewarding orchids for home gardeners. They're loved for their elegant, long-lasting blooms and relatively easy care. However, ensuring these orchids thrive requires attention to several details. Here's a comprehensive guide:

1. Light: Phalaenopsis orchids prefer bright, indirect light. A north or east-facing windowsill is ideal. If the light is too direct, it can cause the leaves to turn yellow, while too little light will result in dark green, limp leaves and poor blooming. If natural light is insufficient, fluorescent grow lights can be a good substitute.

2. Temperature: These orchids prefer temperatures between  65°F (18°C) and 80°F  (27°C) during the day and not less than 60°F (15°C) at night. Avoid exposing them to sudden temperature fluctuations. Temperature plays a role in triggering blooming; cooler night temperatures in the 55°F (12°C) - 65°F (18°C) range for several weeks can encourage flower spike growth.

3. Watering: One of the most common mistakes with orchid care is over-watering. These plants prefer their roots to be slightly dry between watering. Typically, watering once a week is sufficient, but this can vary based on environmental conditions.

To water correctly:

  • Take the orchid out of its decorative pot.
  • Use room-temperature water.
  • Allow water to flow through the growing medium for about a minute.
  • Let the excess water drain completely.

Never let your orchid sit in water, as stagnant water can cause root rot.

4. Humidity: Phalaenopsis orchids thrive in higher humidity, ideally between 50% and 70%. In drier environments or during winter, consider placing a humidity tray (a tray filled with water and pebbles) beneath the orchid. The water will evaporate, increasing the humidity around the orchid. Regular misting can also help.

5. Potting and Medium: Phalaenopsis orchids often come in clear plastic containers which allow you to see the roots and monitor their health. The potting medium, typically a mix of bark and moss, ensures good drainage and air circulation.

Repot every 1 to 2 years or when the medium starts to break down and loses its drainage capability. This is also a good opportunity to inspect and trim any dead or rotted roots.

6. Fertilizing: Fertilize sparingly, using a balanced, water-soluble fertilizer diluted to half strength. During the growing season, fertilize every two weeks; during rest periods, once a month is sufficient.

7. Blooming and Spike Care: Once the orchid starts to bloom, the flowers can last for several weeks. To extend the bloom life:

  • Maintain consistent care routines.
  • Avoid moving the orchid too much.
  • Keep it away from fruit bowls; fruits give off ethylene gas which can cause flowers to wilt.

After blooming, the spike may produce secondary spikes or even new flowers. You can cut the spike above a node (a triangular bump on the spike) to encourage this. If the spike turns brown, it’s done and can be cut off at the base.

8. Pests and Diseases: The most common pests for Phalaenopsis orchids are scale, mealybugs, and spider mites. Check your plant regularly for signs of these pests. If you notice any, isolate the plant from others and treat it with insecticidal soap or neem oil.

Root rot can be a significant concern, mainly caused by over-watering. If roots appear brown and mushy, consider repotting the orchid, trimming away rotted roots, and adjusting your watering schedule.

9. Pruning and Grooming: Remove dead or yellowing leaves to maintain the plant's health and appearance. This will also help in preventing potential fungal or bacterial infections.

10. Propagation: While it's possible to propagate Phalaenopsis orchids through seed or by division, it's a complex process best left to professionals. However, these orchids sometimes produce baby plants or “keikis” (Hawaiian for “baby”) on old flower spikes. Once a keiki has several roots and is large enough, it can be gently removed and potted.


Caring for a Phalaenopsis orchid is a delightful experience that requires patience, attention to detail, and an understanding of the plant’s natural environment. While they might seem delicate, with the right care, these orchids can reward you with stunning blooms year after year. Cultivating them not only beautifies your space but also offers a therapeutic journey, teaching lessons in nurturing, patience, and the wonders of the natural world