How to Tell the Difference Between a Phalaenopsis Flower Spike and a Root

Phalaenopsis orchids (moth orchids) have an elegant posture and are deeply loved by flower enthusiasts. But many beginners often find it hard to tell a flower spike from a root, which makes everyday care difficult. In fact, flower spikes and roots differ noticeably in growth position, shape, color and growth direction. Let's go over them below.

How to tell a Phalaenopsis flower spike from a root:

Growth position

A flower spike usually emerges from a leaf axil, in a relatively fixed position; many Phalaenopsis orchids send up the flower stalk from below the third and fourth leaves. Roots, by contrast, appear in more random positions, mainly concentrated on the two vertical sides in the direction the leaves spread. This difference gives us a clue for a first judgment.

Shape

The tip of a flower spike is flat and has a small pointed corner, giving it an overall sword-like shape, which is also why it is named the "flower spike." The tip of a root is rounded. Put the two side by side and the difference in shape is obvious at a glance.

Color

The color of a flower spike is generally dark green or purple, vivid and very eye-catching. Roots, on the other hand, are pure white. By color alone, we can quickly tell the two apart.

Growth direction

A flower spike has obvious phototropism: it generally grows upward, stretching toward the sunlight. Roots grow in relatively free directions, but in order to absorb water and nutrients better, most of them grow downward.

Phalaenopsis care tips

Choosing potting medium

Phalaenopsis is an epiphytic plant and has fairly high requirements for its potting medium. The ideal medium should be loose, airy and well draining; sphagnum moss and pine bark are both good choices. Avoid using a medium that holds too much water, otherwise the roots will stay in a damp environment for a long time, which can very easily cause root rot and endanger the plant's health.

Leaf condition

Healthy leaves are a sign that a Phalaenopsis is thriving. In everyday care, make sure the plant gets plenty of bright, indirect light, and avoid direct strong sunlight that can scorch the leaves. At the same time, keep the ambient humidity reasonably controlled and regularly replenish nutrients so the leaves stay firm and in good condition.