Ce calendrier horticole est spécialement conçu pour les zones de rusticité 4 au Canada.
Si vous vous trouvez dans les zones 3, 5, 6, 7 ou 8, certaines tâches devront peut-être être effectuées plus tôt ou plus tard.
Please let me know if you have any suggestions or changes!



A huge thank you to Christopher, a bonsai enthusiast, for allowing me to use much of this horticultural calendar.
Your help is greatly appreciated!



In the fertilizer market, a standard has been established for the display: you'll always find three digits representing nitrogen (N), phosphorus (P) and potash (K).
When I refer to a type of fertilizer, it's not just the numbers that are important, but also the formula to be obtained. For example, if I recommend using a fertilizer rich in nitrogen (e.g. : N.P.K. – 10.5.5), the aim is to find a fertilizer whose first digit is higher than the other two. The same applies to the other formulations.


December

GENERAL

  • Read the articles you didn't read during the season.
  • Organizing your next season.
  • Preparing the substrate for future repotting
  • Plan the final development of your trees by making sketches.

Tropicals

  • Tropical trees placed indoors experience a reduction in activity and may lose their leaves.
  • Bring extra moisture and light to your indoor bonsai.
  • Adapt your watering and avoid positioning your bonsai near heat sources.
  • Keep an eye out for insect infestations.
  • Stop fertilizing your tropicals.

SEMI-RUSTIC (cold greenhouse)


Temperature between 2 and 5 degrees Celsius

  • Water semi-rustic plants once a week to once every two weeks, depending on the climate of your greenhouse, the level of activity of your trees and the size of the pots.
  • Keep a close eye on the watering of your trees. Substrate can appear wet on the surface when it's dry inside, which is often the main cause of tree loss in cold greenhouses.

RUSTICS