While the “elixir” you described may be an interesting concept, it’s important to clarify that the effectiveness and safety of such a mixture for promoting plant flowering is not scientifically supported. In fact, applying certain substances like crème fraîche and potato slices to your plants may not only be ineffective but could potentially harm them.

Instead, here are some more practical and proven tips for encouraging your plants to bloom again:

  1. Proper Light Exposure: Ensure your plants are getting the right amount of light they need. Some plants require direct sunlight, while others prefer indirect or filtered light. Adjust their placement accordingly to provide optimal light exposure.
  2. Watering: Maintain a consistent watering schedule based on the specific needs of your plants. Avoid overwatering, as this can lead to root rot and other issues. Conversely, don’t let the soil dry out completely between waterings, as this can stress the plant and inhibit flowering.
  3. Nutrient-Rich Soil: Use a high-quality potting mix or soil that is rich in nutrients to support healthy plant growth. Consider fertilizing your plants with a balanced fertilizer formulated for flowering plants to provide essential nutrients like nitrogen, phosphorus, and potassium.
  4. Pruning: Regularly prune your plants to remove dead or damaged foliage and encourage new growth. This can help redirect energy towards flower production and promote overall plant health.
  5. Temperature and Humidity: Ensure your plants are kept in an environment with stable temperature and humidity levels that are suitable for their species. Sudden fluctuations or extremes in temperature or humidity can stress plants and inhibit flowering.
  6. Patience: Sometimes, plants simply need time to adjust to their environment or go through natural growth cycles before they bloom again. Be patient and continue to provide proper care, and your plants may reward you with beautiful blooms in due time.

Remember, every plant is unique and may have specific requirements for optimal growth and flowering. By understanding and meeting these needs, you can help your plants thrive and bloom again.