5 Tips for Caring for Your Rex Begonia in Winter

Begonia rex-cultorum

By Kiersten Rankel

Jul 25, 20243 min read

Winterize your Rex Begonia care for a lush spring comeback πŸŒΏβ€”avoid dormancy pitfalls now!

  1. 🌱 Reduce watering frequency to prevent root rot in winter.
  2. πŸ’‘ Provide bright, indirect light or artificial light for 8-10 hours daily.
  3. 🌑️ Maintain 60-70°F and 40-50% humidity for optimal health.

Winter Watering Schedule

Winter dormancy in Rex Begonias calls for a shift in watering habits. As growth slows, so should the frequency of watering.

  • Begin by reducing the amount of water you provide. Let the soil dry out more between waterings to prevent root rot.
  • Use room-temperature water to avoid shocking the plant's roots, which can be sensitive during the colder months.

Recognizing the signs of improper watering is crucial to avoid harming your Rex Begonia.

Remember, the key is to observe your plant and adjust accordingly. A moisture meter can be a helpful tool to gauge when it's time to water again.

Winter Fertilizing Routine

During winter, your Rex Begonia's growth slows, signaling a time to reduce fertilization. Overfeeding can cause nutrient burn, as the plant's metabolism is not as active as during the growing season.

  • Scale back fertilization to once a month or less.
  • Opt for a fertilizer with higher phosphorus content to support root health and prepare for spring growth.
  • Avoid high nitrogen fertilizers, which encourage foliage growth that's vulnerable to cold damage.

If your Rex Begonia continues to grow under grow lights, a light monthly feeding may still be beneficial. Always observe your plant's response and adjust accordingly.

Indoor Winter Strategies

Rex Begonias, with their lush foliage, need a bit of extra attention during the winter months when indoor conditions can challenge their tropical nature.

🌞 Ensuring Adequate Light

  • Position your Rex Begonia in a spot with bright, indirect light to mimic the dappled sunlight of its natural habitat. A north-facing window is often ideal.
  • If natural light is scarce, consider supplementing with artificial light, providing eight to ten hours a day to keep those leaves vibrant.

πŸ’§ Maintaining Humidity and Temperature

Preparing for Spring

As the threat of frost recedes, it's time to gently reintroduce your Rex Begonias to the outdoors. This transition is crucial for their spring revival.

  • Begin by placing your Rex Begonias in a shaded, sheltered area outside. Gradually increase their exposure to natural conditions over several days to prevent shock.
  • Monitor the plants for signs of stress, such as leaf drop, and adjust their position accordingly.

Spring is also a period of recovery. Assess your plants for any signs of winter wear.

By taking these careful steps, you'll set the stage for a vibrant growing season.

Ensure your Rex Begonia stays thriving in the chill πŸŒΏβ„οΈ with Greg's custom watering and light reminders, tailored to these winter care essentials.