Geraniums can brighten your windows throughout winter, but proper preparation is crucial for ensuring they bloom beautifully come spring. Winter marks a period of dormancy for many plants, including geraniums, from December to March.

Here are some important recommendations to help you prepare:

  1. Air Temperature: Ensure geraniums are kept in a warm environment. The temperature should not drop below +6 degrees Celsius, with an optimal range of 10 to 15 degrees Celsius.
  2. Light: Provide adequate light for the plant. During winter, supplemental lighting with grow lights can be beneficial to ensure geraniums receive sufficient light.
  3. Watering: Regulate watering carefully during winter. While geraniums are not overly demanding of moisture, watering them about once a week should suffice.
  4. Plant Maintenance: Monitor the plant’s condition closely. Prune geraniums in September-October by removing spent blooms, damaged, and yellowed leaves.
  5. Feeding: While geraniums typically do not require frequent feeding, using low-nitrogen fertilizers can benefit weakened plants.

Avoid transplanting geraniums in autumn as it can leave them in a weakened state for an extended period. It’s best to wait until spring for any transplanting efforts.

By following these steps, you can ensure your geraniums remain healthy and vibrant throughout the winter season, ready to flourish again when spring arrives.