When warm weather arrives, orchids need special attention to ensure they thrive and stay healthy. Here are some key points to watch out for when temperatures rise:
Temperature: Orchids come from different climates and have specific temperature requirements. In general, most orchids thrive at room temperatures between 20°C and 28°C. Make sure the temperature does not fluctuate too much and avoid sudden temperature changes, as this can cause stress.
Humidity: Warm weather is often accompanied by lower humidity, which can be a challenge for orchids, which are often naturally used to higher humidity levels. Increase the humidity around your orchids by regularly spraying them with water, placing them on a bowl of water or using a humidifier nearby.
Watering: In warm conditions, orchids’ water needs may increase. Check whether your plant needs water by checking the roots. Indeed, if the roots are grey, it means the orchid is very dry. In that case, immerse your orchid in a bucket or sink for 10-15 minutes. The roots will then fill up with water and you will immediately see that the roots turn green.
If the roots are brown, you may have given the orchid too much water. In some orchids, the orchid will make new roots on its own (after flowering).Make sure the pot is well-drained and can drain excess water to prevent root rot.
Protection from direct sunlight: Bright sunlight can burn the leaves of orchids. Place your orchids in a location with bright, indirect light and avoid direct sunlight, especially during the hot hours of the day. A light curtain or sunshade can help filter the light.
Ventilation: Ensure adequate air circulation around your orchids to prevent mould growth and excessive heat build-up. However, keep draughts and strong winds at bay as these can cause stress to the plants.
Fertilise: During warm weather, the growing period of orchids is often more intense. Fertilise your orchids regularly with a water-soluble orchid fertiliser, but be careful not to over-fertilise. Follow the recommended dosage on the fertiliser package and reduce the frequency during heat waves or when orchids seem to slow down in growth.
Regular inspection: Keep a regular eye on your orchids for signs of stress, such as yellowed leaves, wilting or diseases. Quick action can help prevent or minimise problems.
By keeping these aspects in mind and giving them the necessary care and attention, you can help your orchids stay healthy and beautiful, even during hot weather.