'It's not mandatory to repot orchids just because they have aerial roots showing outside. If the plant looks healthy, it usually means it's doing great and is well-adjusted to its current setup,' says Carmela de Castro, owner of Orchid Republic Floral Boutique.
If you decide to leave aerial roots to grow outside the pot, they will likely dry out faster because they don't have moisture from the potting medium.
‘Make sure to water aerial roots every time you water the orchid. Ideally, water them more frequently than the potting mix,' says Vladan Nikolic, a plant expert from Mr. Houseplant.