Phalaenopsis orchids rot as soon as they're planted in soil - it turns out they're just not suited to soil by nature

Many beginner gardeners have found that no sooner do they plant a Phalaenopsis orchid in potting soil than, within two weeks, the roots have rotted to a mushy mess. Only later did they figure it out: this orchid is naturally "no fan" of soil.

Phalaenopsis is native to tropical forests, where it doesn't grow on the ground but clings to tree trunks and lives attached in rock crevices. In the wild it never encounters the garden soil or potting soil we use at home; it survives purely on the moisture in bark and moss. That's why its roots are different from those of other flowers too - they are the plump, white aerial roots covered in a layer of fine fuzz. These roots aren't meant to burrow into soil and absorb water; they are meant to "grip onto things and breathe," while also taking in moisture from the air. Bury these roots in soil and it's like sealing a person in a plastic bag - they'll suffocate in no time.

Soil is too smothering and holds too much water. The soil we normally use, whether garden soil or potting soil, tends to compact after watering - that is, the clumps stick together with few gaps in between. Phalaenopsis aerial roots especially dread being smothered; once soil wraps them up tightly, the roots can't breathe, and over time they turn black, stink, and finally rot. What's more, soil holds water far too well, and Phalaenopsis is inherently prone to waterlogging - once the soil gets waterlogged, the roots soaking in water are done for. That's exactly how my previous pot rotted: when I pulled it out, the roots had turned to mud.

There's another key problem: soil competes with the Phalaenopsis for nutrients and easily attracts pests. Phalaenopsis needs especially "light" nutrition - it likes the nutrients slowly released as bark and sphagnum moss decompose. The nutrients in soil are either too concentrated or in a form it can't absorb, and instead burn the roots. In addition, once soil is damp it's especially prone to fungus gnats, scarab grubs and other pests, and these pests specifically gnaw on Phalaenopsis roots. The roots are fragile to begin with, and once nibbled by pests, the plant is basically beyond saving.

So what should Phalaenopsis actually be grown in? Its dedicated potting mix is actually very easy to prepare, and beginners can't go wrong with these two options. The first is sphagnum moss: soak it, squeeze out the excess water, wrap it around the orchid's roots, and tuck it into a transparent pot. Sphagnum moss both retains moisture and won't smother the roots, and you can see how the roots are growing. The second is bark chips: choose well-fermented pine bark, break it into small pieces and spread it in the pot. Its air permeability is excellent - when you water, the water runs off through the gaps between the bark and won't pool, and the roots can climb along the bark, which perfectly matches its wild growth habits.

The "incompatibility" between Phalaenopsis and soil is in fact the brilliance of natural selection. When growing Phalaenopsis, never copy how you grow other flowers by burying it deep - it's best to leave some of the roots exposed so they can breathe better. If your Phalaenopsis is still planted in soil right now, switch it out quickly and don't wait until the roots rot to regret it. The truth is, it isn't hard to grow - choose the right potting medium, and it can bloom for nearly half a year!