Do Orchids Need To Be Fertilized In The Winter?

Fertilizing orchids is a general best practice, except for winter-blooming ones. Over-fertilization can lead to dry leaf tips and burned root tips, inhibiting growth. If an orchid is actively growing during winter, fertilize it once a month during the growing season, typically from spring to fall. However, during winter, fertilize less frequently, every two to four months.

To maintain orchids during the winter months, reduce watering and fertilizing frequency. Watering should be done once per week, with pure water being the first step. Fertilizing orchids during their active growing phase, usually during spring, helps them resist cold, insect, and disease damage and provide two to three additional years of growth. Orchids with dormancy, like dendrobium, do not fertilize.

As a general rule, fertilize orchids every 2 weeks during peak growth (spring and summer) and once a month during dormancy (fall and winter). If an orchid is actively growing during winter, continue to fertilize it. If new roots or leaves grow, continue to fertilize the orchid throughout the winter.

In winter, check for dry and gray roots, as the plant may need more water. It’s best to stop fertilizing in winter unless the orchid is winter-blooming, as over-fertilization can result in smaller, less vigorous growth. Proper fertilization will help develop a strong root system, healthy foliage, and gorgeous flowers.