Why Sphagnum Moss Turns Green in Phalaenopsis Orchids and Choosing Between Transparent and Opaque Pots

When Phalaenopsis orchid flowers bloom, their petals layer upon layer, looking from a distance like butterflies dancing gracefully, elegant and lively. In the flower market, selling Phalaenopsis orchids is a common trade, with some having many buds that seem about to open, while others have every single flower blooming brilliantly. So in home care, what pitfalls should you watch out for?

What counts as good home care for Phalaenopsis orchids? They are not annual flowers, and many flower enthusiasts wonder whether the medium inside orchids should be changed every one or two years or never changed at all. What is the reasoning behind this? Does sphagnum moss become acidic after long use? Because if the sphagnum moss is not changed for too long, the side facing the sunlight turns green. Do these green things release something that affects the orchid?

Regarding the questions from the flower enthusiast above, the editor will answer. Generally speaking, the reason I use transparent plastic pots for Phalaenopsis orchids is twofold: first, you can intuitively see the root growth status, and second, it allows the orchid roots to perform photosynthesis. In fact, in actual care, using transparent plastic pots, with light shining on the same side for a long time, the edges of the sphagnum moss easily grow algae, which is actually not friendly to the roots. So transparent plastic pots are effective for scattered light from a stable light source, but for plants in home care, where the relative light intensity is sometimes strong and sometimes weak and unstable, it is best to put an opaque plastic pot on the outside.

There is also the matter of sphagnum moss. Sphagnum moss does indeed become acidic and decay over time, but there is no fixed time for this, so there is no need to change the sphagnum moss according to a schedule, nor does it mean never changing it. Instead, it depends on the condition of the Phalaenopsis orchid plant. If it is not growing well, or if there are problems with the root system, then it is time to change the sphagnum moss.

Finally, watering and cultivation methods actually have a big impact on sphagnum moss. If watering is well controlled, the sphagnum moss will not change much over a year. But if the watering method is incorrect, the sphagnum moss easily rots. So the durability of sphagnum moss is related to watering. The watering principle is to "water when dry, stop when wet." Following this well can help Phalaenopsis orchids grow healthily.