Can Sphagnum Moss Still Be Used for Planting After Soaking for 10 Hours? An Analysis of the Correct Soaking Time

As is well known, to grow Phalaenopsis orchids well, besides routine watering, sunlight and temperature, the choice of potting medium is also very important. Among these, sphagnum moss is undoubtedly a common substrate material. Its advantages are water retention and air permeability, and it is relatively easy to buy, so it is favored by flower growers. Its downside is that it needs to be replaced about every two years, otherwise its air permeability becomes less than ideal.

So, when it is time to replace the sphagnum moss with new moss, how long does it need to be soaked?

When replacing the sphagnum moss with new moss, soaking is essential first, because only when it absorbs enough water can it also remove the impurities and undesirable things hidden inside. Generally speaking, put the dry sphagnum moss into clean water and soak it for about 30 minutes. Do not think that the longer the better, because soaking too long will affect its air permeability, but too short is also no good, as it will not absorb enough water. While soaking, there is a little trick: after about ten minutes of soaking, give it a stir with chopsticks. This allows every part of the sphagnum moss to get water.

Then, take out the soaked sphagnum moss and gently squeeze out the excess water with your hands, because if there is too much water, the roots of the Phalaenopsis orchid cannot breathe properly. The best state for the wrung-out sphagnum moss is simply moist, without continuously dripping water.

Done this way, the sphagnum moss can both provide enough moisture for the roots of the Phalaenopsis orchid and ensure air permeability, so there is no need to worry later that medium problems will affect the flowering period.

Finally, when using sphagnum moss to grow Phalaenopsis orchids, there are still a few points that are easily overlooked. Before repotting, the Phalaenopsis orchid must first have its roots trimmed, cutting off some dry and rotted roots, so that new roots can grow well. The trimmed roots should be flat and smooth, making it easy for the sphagnum moss to wrap tightly around them.

In addition, when planting, first lay a layer of something permeable like Leca at the bottom of the flowerpot, then spread a thin layer of sphagnum moss. This is equivalent to an upgraded version that makes the medium more breathable and light-transmitting, which is beneficial for subsequent growth. After all the steps are done, do not water for now. Place it in a spot with scattered light for a week, and wait until the roots have adapted before watering normally.