What should be noted when transplanting orchids?

1. Wound sterilization: When removing plants from flasks for transplanting, repotting, or dividing, soak the roots, stems, and leaves in a fungicide solution (chlorothalonil, carbendazim, thiophanate-methyl, etc.) for 20 minutes to prevent pathogen invasion; watering 1-2 days after transplanting gives better results.

2. Disinfection of old pots: When plantingorchidsin principle, use new pots; if old pots are used, they should first be treated with a disinfectant before use.

3. Do not use pots that are too large: Planting small seedlings in large pots means, on the one hand, using too much potting medium, which easily leads to poor aeration; on the other hand, watering is not easily uniform. If the medium is too wet, it dries poorly, bacteria easily invade, and root rot results.

4. Plant orchids shallowly: Orchids should not be planted deep; when planted deep, the base stays damp for a long time and easily causessoft rot. When planting, fill the medium around the roots; the base or pseudobulbs must be exposed and must not be buried in the medium.

5. Position of new shoots: When planting orchids, the new shoots should be placed in the center of the pot; at first it may look as if they are leaning to one side, but when the new shoots grow and bloom in the future, they will be in the center of the pot.

6. Position of the root system: When planting, spread the orchid roots evenly in all directions, without letting them press against each other, so that every root can contact the medium and have good aeration; otherwise root rot easily occurs.

7. Stabilize the plant: Because orchids cannot be planted deep, they often appear shaky, so supports and ties must be used to secure them so they do not sway, to avoid damaging the roots.

8. Firm the medium: The medium for planting orchids must be airy and well-draining, such as sphagnum moss, coconut coir, etc. After planting, it should be pressed down slightly; otherwise the space at the base is too large and root growth is poor. The correct method is to press firmly from both sides, not to press heavily from above.

9. Watering time: Newly planted orchids may have injured roots, and the wounds have been coated or soaked with fungicide, so do not water or water only sparingly within 2-3 days; this allows the fungicide to take effect and also promotes the growth of new shoots and new roots. This is where orchids differ from other herbaceous and woody flowering plants.

10. Avoid strong light: Newly planted orchids must avoid direct strong sunlight to prevent excessive dehydration, and should be placed in a shaded spot. Spray appropriately to increase air humidity until the orchid returns to normal growth.