Do houseplants go dormant in winter?

Many houseplants slow down significantly during winter as daylight hours shorten and light intensity drops. This seasonal slowdown is a natural response to reduced energy available for photosynthesis. While most tropical houseplants do not become fully dormant like outdoor plants, their growth rate often decreases noticeably.

During this period, you may see fewer new leaves, slower root development, and longer drying times between waterings. Because plants are using less energy, they also require less water and fertiliser. Continuing to water or feed at summer levels can sometimes lead to problems such as overwatering or root stress.

If your plant’s growth pauses completely, this is usually normal. Reduce watering slightly and pause fertilising until growth resumes in spring.

However, plants placed under grow lights may continue to grow throughout winter because they receive consistent light levels that support photosynthesis year-round.

If you're unsure how winter affects plant care, read our guide to Keeping Your Plants Happy Through Winter!, particularly the section on growth slowdown.

Adding grow lights can also help maintain healthier growth during darker months.