I have my seed/seedling… Now what??

1. Prepare a Container and Growing Medium

  • Use a to-go cup, clear container, or prop box to maintain 100% humidity.

  • Choose a well-draining medium:

    • Sphagnum moss OR

    • Tree fern fiber

  • Moisten the medium thoroughly—it’s better to keep it too wet rather than too dry at this stage.

2. Transplant the Seedling

  • Gently place the seedling onto the damp moss or tree fern fiber.

  • Ensure the roots are covered, but do not bury the stem.

  • Place inside the chosen high-humidity enclosure (or just put the lid on the container that you’re using).

  • If you received a seed or 1-2 leaf seedling, it can likely stay in the container it came in until it outgrows it.

3. Humidity & Acclimation

  • Keep humidity at 100% until the seedling has at least 3 leaves.

  • Starting with the 4th or 5th leaf, you can slowly decrease humidity by 10% per new leaf until it reaches 60-80% humidity.

  • Patience is key here. Rushing the acclimation process can permanently stunt your seedling.

  • It will take a few months for a seed to reach its 4th or 5th leaf.

4. Temperature Requirements

  • While they are still small, maintain temperatures between 75-90°F (24-32°C).

  • A heat mat can be used to provide consistent warmth.

  • Avoid placing near cold drafts or direct AC vents.

5. Light Requirements

  • Provide bright, indirect light—near a window but not in direct sun.

  • Avoid direct sunlight, which can scorch the seedling.

6. Watering

  • Keep the medium moist to wet—err on the side of too wet rather than too dry while they are little.

7. Fertilization

8. Ongoing Care & Repotting

  • Once the plant outgrows its container, transition to a larger pot with whatever mix you are comfortable with.

  • You can continue to gradually reducing humidity gradually as new leaves form.

  • After acclimation, aim for 60-80% humidity for optimal growth.

With patience and proper care, your anthurium will thrive!