How do you save a Phalaenopsis orchid whose roots have all rotted and get it to grow new roots?

As a common Chinese New Year flowering plant, the Phalaenopsis orchid (Phalaenopsis spp.) is very prone to root rot due to poor ventilation or improper watering. When the roots of a Phalaenopsis orchid rot, how do we get it to grow new roots? Even if all the roots of the Phalaenopsis orchid have rotted, is there still a chance to save it?

The causes of root rot in Phalaenopsis orchids are many and varied, mainly including root damage, sphagnum moss absorbing water too aggressively, and insufficient oxygen supply. The key to preventing root rot lies in controlling watering, keeping the growing medium moist but not overly wet, and at the same time ensuring good ventilation.

Rescue steps for Phalaenopsis orchid root rot

Clean off the original growing medium: Once root rot is discovered in a Phalaenopsis orchid, it should immediately be taken out of its pot, and the original growing medium, such as sphagnum moss and bark, should be gently cleaned off by hand. Be careful when cleaning to avoid damaging healthy roots.

Root trimming and disinfection: Use sterilized scissors to trim away hollow and rotted roots. Then, place the Phalaenopsis orchid plant into a carbendazim aqueous solution (generally made up as a 1000-fold dilution) and soak it for about 30 minutes, or spray the trimmed parts with 75% alcohol for disinfection. After disinfection is complete, place the plant in a ventilated spot to dry, letting the wounds heal.

Replace the growing medium: Because root rot has occurred, the original growing medium may contain excessive harmful bacteria, so it needs to be completely replaced with fresh growing medium. You can choose a growing medium with good air permeability, such as bark and perlite. Before potting, first soak the growing medium in water, squeeze out the excess water, and then use it.

When repotting, first place a layer of growing medium at the bottom of the pot, then put the Phalaenopsis orchid's root system into the pot, fill it with growing medium and press it down slightly. For Phalaenopsis orchids with severe root rot, the following rooting methods can be used:

Surface-laying method: Lay the root system directly on the surface of the growing medium, keep the growing medium moist, and wait for roots to grow. This method suits situations where the root system is relatively short.

String-guiding method: Tie a thread or string to the root system to guide water to the roots and keep the growing medium moist. This method lets the root system absorb water more naturally and makes the rooting process less worrisome.

1 cm away from the roots is enough. During water culture, change the water regularly to keep the water clean.

Acclimatize in a ventilated spot: After repotting, place the Phalaenopsis orchid in a bright, ventilated spot to acclimatize. Do not fertilize for the time being; once the Phalaenopsis orchid starts growing again, gradually return to normal care.

Even if all the roots of a Phalaenopsis orchid have rotted, as long as its stems and leaves have not rotted, there is still a chance to save it. The key is to take rescue measures in time and patiently wait for new roots to grow. During the rescue process, keep the growing medium moist but not overly wet, and at the same time ensure good ventilation.

Root rot in Phalaenopsis orchids is not beyond saving; as long as we master the correct rescue methods and wait patiently, we can bring it back to life. During care, pay attention to controlling watering, maintaining ventilation, and regularly replacing the growing medium to prevent root rot problems from occurring.